Crushing device and energy-saving crushing method for feed fine processing

Abstract

The invention discloses a crushing device and an energy-saving crushing method for feed fine processing, and relates to the field of crushing devices.The crushing device comprises a rotating cylinder and a filter sieve, the filter sieve is hollow and cylindrical, a plurality of filter holes are formed in the filter sieve, the rotating cylinder can rotate in the filter sieve, and an operation assembly and a plurality of hammering assemblies are arranged in the rotating cylinder; the operation assembly comprises an operation rod, the operation rod is rotationally connected into the rotating cylinder, the hammering assembly comprises a hammering head, and the rotating cylinder can drive the hammering head to rotate. The distance between the hammering head and the filter sieve is matched with the diameter of a material, so that particle materials with different diameters are well crushed, large particle materials are ensured to have sufficient space to jump and participate in collision, the crushing efficiency is improved, the large particle materials cannot block small particle materials in the filter sieve from being discharged through filter holes, and the service life of the filter sieve is prolonged. The crushing and discharging efficiency is improved, excessive crushing caused by the fact that small-particle materials cannot be discharged in time is prevented, and the quality of the crushed materials is improved.

Description

Technical Field

[0001] The invention relates to the field of crushing devices, and in particular to a crushing device and an energy-saving crushing method for feed finishing. Background Art

[0002] The crushing equipment used in feed production mainly refers to mechanical equipment that can crush and refine various feed raw materials such as corn, wheat, soybean meal, straw and other materials. The hammer crusher is a device that uses a high-speed rotating hammer to impact and crush the material. After the material enters the crushing chamber, it is strongly impacted by the hammer and crushed. At the same time, the gravity of the material itself causes the material to rush from the hammer to the impact plate and screen bars. The material smaller than the screen hole size is discharged through the screen plate, and the material larger than the screen hole size continues to be hit and ground by the hammer, and finally discharged from the machine through the screen plate.

[0003] Chinese patent CN108654755B discloses a hammer crusher, comprising a body and a crushing barrel, a feed pipe is arranged on the crushing barrel, a rotor and a hammer are arranged in the crushing barrel; it also comprises a pre-crushing mechanism and a collecting mechanism; the pre-crushing mechanism comprises a pre-crushing part and a driving part, the pre-crushing part comprises a moving rod and a pressing plate; the driving part comprises a first rotating shaft, a second rotating shaft and a third rotating shaft, the first rotating shaft and the rotor are driven by a first bevel gear set, the first rotating shaft and the second rotating shaft are driven by a second bevel gear set, and the third rotating shaft and the second rotating shaft are driven by a third bevel gear set; a threaded pair is formed between the third rotating shaft and the frame, the third rotating shaft is provided with a torsion spring, and a wedge rod is also provided on the frame; the collecting mechanism comprises a collecting box arranged below the crushing channel, a screen plate is slidably connected to the collecting box, which solves the problem that the feed pipe is easily blocked when crushing materials with larger particle sizes in the prior art; Chinese patent CN102049332B discloses a hammer crusher, comprising a screen plate, a crushing chamber, a rotating hammer head and a feeding hopper, and also comprises: a connecting device with one end hinged on the lower chamber of the crusher, a plug is provided at the other end of the connecting device, and a slot that matches with the connecting device is provided on the upper chamber of the crusher; a quick pressing device, comprising a sleeve fixed on the upper chamber of the crusher, a compression spring arranged in the sleeve, a pressure cover arranged at the top of the sleeve and a movable pin slidably arranged at the bottom end of the sleeve, the connecting device can be inserted into the slot on the upper chamber of the crusher by rotating the connecting device, the upper chamber of the crusher is pressed against the lower chamber of the crusher by the plug, after the connecting device connects the lower chamber of the crusher with the upper chamber of the crusher, the movable pin is pressed against the screen plate of the crusher, and a pre-tightening force is provided by the compression spring to realize the fixing of the screen plate, and the connection of the lower chamber of the crusher with the upper chamber of the crusher and the screen plate can be realized by rotating the connecting device, and the operation is relatively simple.

[0004] The above patents and prior art also have the following defects: The existing distance between the crushing hammer head and the filter screen plate is fixed, which is only suitable for materials with suitable diameters. Materials that are too large will cause jamming, and the jumping distance of the materials between the crushing hammer heads is short, and the impact frequency is low. For materials that are too small, the crushing hammer head cannot frequently impact the materials, resulting in low crushing efficiency. In addition, the high-speed rotation of the crushing hammer head will exert centrifugal force on the materials. The larger the material, the greater the centrifugal force, causing large particles to accumulate on the screen plate, blocking the screen plate and preventing small particles from being discharged, resulting in reduced crushing and discharging efficiency. Small particles cannot be discharged in time, which can easily lead to over-crushing and affect material quality.

[0005] Therefore, the present application provides a crushing device and an energy-saving crushing method for feed finishing to meet the needs. Summary of the invention

[0006] The purpose of the present application is to provide a crushing device and an energy-saving crushing method for feed finishing, so that the distance between the hammer head and the filter screen matches the material diameter, and has a good crushing effect on granular materials of different diameters, ensuring that large granular materials have sufficient space to jump and participate in collision, thereby improving the crushing efficiency. Large granular materials will not block the small granular materials in the filter screen from being discharged through the filter holes, thereby improving the crushing and discharge efficiency, and preventing excessive crushing caused by the inability to discharge small granular materials in time, thereby improving the quality of the crushed materials.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a crushing device, comprising a rotating drum and a filter screen, wherein the filter screen is a hollow cylindrical shape, a plurality of filter holes are provided on the filter screen, and the rotating drum can rotate in the filter screen; An operating assembly and a plurality of hammer assemblies are arranged in the rotating cylinder. The operating assembly includes an operating rod, which is rotatably connected in the rotating cylinder. The hammer assembly includes a hammer head, and the rotating cylinder can drive the hammer head to rotate. When the operating rod rotates relative to the rotating cylinder, the operating rod can make the hammer head move perpendicular to the rotating cylinder. A scraper assembly is also provided in the filter screen, and the rotating cylinder can drive the scraper assembly to rotate in the filter screen. The scraper assembly includes a scraper and a compression torsion spring, and the compression torsion spring can make the scraper in an inclined state and abut against the inner wall of the filter screen. A feed port is provided on the top of the filter screen, and when the scraper rotates to the feed port position, the compression torsion spring can rotate the scraper to a vertical state.

[0008] Preferably, the operating component also includes a fixed plate, a driving motor, a driving belt member and a plurality of driving bevel gears, the fixed plate is fixedly mounted on one end of the rotating cylinder, the driving motor is fixedly mounted on the fixed plate, the driving belt member includes a driving pulley, a passive pulley and a driving belt, the driving pulley is fixedly mounted on the output end of the driving motor, the passive pulley is fixedly mounted on the operating rod, and the driving belt is connected to the driving pulley and the passive pulley.

[0009] Preferably, a plurality of partitions are fixedly mounted on the rotating cylinder, and the hammer assembly further includes a passive bevel gear, a movable screw, a movable slider, a fixed shell and a movable rod. The movable screw is rotatably connected to the rotating cylinder, and one end of the movable screw extends into the rotating cylinder, the passive bevel gear is fixedly mounted on one end of the movable screw and meshes with the driving bevel gear, the fixed shell is fixedly mounted on the partition, the movable screw is rotatably connected to the fixed shell and extends into the fixed shell, the movable slider is sleeved on the movable screw and threadedly connected to the movable screw, the movable slider is slidably fitted in the fixed shell, one end of the movable rod is fixedly mounted on the movable slider, the movable rod passes through the fixed shell and slidably fits with the fixed shell, and the hammer head is fixedly mounted on one end of the movable rod away from the movable slider.

[0010] Preferably, the scraper is also provided with an adjustment assembly, which includes two connecting blocks, an adjustment screw, an adjustment block, a moving block and an adjustment plate, the two connecting blocks are fixedly mounted on the scraper, the adjustment screw is rotatably connected to the connecting blocks, the adjustment block is fixedly mounted on the adjustment screw, the moving block is fixedly mounted on the adjustment plate, and the moving block is sleeved on the adjustment screw and threadedly connected to the adjustment screw.

[0011] Preferably, the scraper assembly also includes a support block and a support rod, the support block is fixedly mounted on the rotating cylinder, one end of the support rod is fixedly mounted on the support block, the scraper is rotatably connected to the support rod, one end of the compression torsion spring is fixedly mounted on the support rod, the other end of the compression torsion spring is fixedly mounted on the scraper, and a dust cover is provided on the compression torsion spring.

[0012] Preferably, the filter screen is fixedly installed in the crushing shell, and a feed assembly is provided on the crushing shell, and the feed assembly includes a feed shell, a feed motor and a feed wheel. The feed shell is fixedly installed on the crushing shell and is connected to the feed port of the filter screen, the feed motor is fixedly installed in the feed shell, and the feed wheel is rotatably connected in the feed shell. The top of the feed shell is open, and a plurality of feed slots are provided on the feed wheel. The output end of the feed motor is fixedly installed on the feed wheel.

[0013] Preferably, a material discharge component is also provided in the crushing shell, and the material discharge component includes a material discharge conveyor belt, two material discharge rollers and a material discharge motor. The material discharge conveyor belt is arranged below the filter screen, and the two material discharge rollers are rotatably connected to the crushing shell. The material discharge conveyor belt is sleeved on the two material discharge rollers, and the material discharge motor is fixedly mounted on the crushing shell, and the output end of the material discharge motor is fixedly mounted on one of the material discharge rollers.

[0014] Preferably, a fixed base is fixedly installed on the bottom of the crushing shell, both sides of the crushing shell are opened, a sliding rod is fixedly installed on the fixed base, and inspection doors are provided on both sides of the crushing shell. The inspection doors are sleeved on the sliding rod and slidably cooperate with the sliding rod, and one side of the inspection door is against the fixed base.

[0015] Preferably, a crushing motor is fixedly mounted on the fixed base, and an output end of the crushing motor is fixedly mounted on the rotating drum.

[0016] An energy-saving crushing method for feed finishing, using the above-mentioned crushing device, comprises the following steps: The material is placed in the filter screen, and the rotating drum drives multiple hammer heads to rotate. The hammer heads collide with the material, causing the material to bounce repeatedly between the filter screen and the hammer heads and be broken; The material with a smaller diameter than the filter hole of the filter screen will be discharged through the filter hole, while the material with a larger diameter than the filter hole will continue to be crushed; When the diameter of the material changes and the distance between the hammer head and the filter screen needs to be adjusted, the operating lever is rotated, and the operating lever drives the hammer head to rotate perpendicular to the rotating cylinder, so that the distance between the hammer head and the filter screen changes; In the process of crushing the material, the rotating drum drives the scraper to rotate, and the scraper scrapes off the material close to the filter screen and retains it in the space between the scraper and the filter screen, driving this part of the material to move. When the scraper moves to the feed port of the filter screen, the compression torsion spring drives the scraper to rotate to a vertical state, so that the material between the scraper and the filter screen passes through the feed port and enters the filter screen again for crushing.

[0017] In summary, the technical effects and advantages of the present invention are as follows: 1. In the present invention, by rotating the operating rod, the operating rod drives the hammer heads in all the hammer assemblies to move perpendicularly to the rotating cylinder, and the distance between the hammer heads and the filter screen can be adjusted, so that the spacing between the hammer heads and the filter screen matches the material diameter, and has a good crushing effect for particle materials of different diameters. It can prevent the spacing between the hammer heads and the filter screen from being too large, so that small particle materials cannot repeatedly jump and be hit between the hammer heads and the filter screen, and it can also prevent the spacing between the hammer heads and the filter screen from being too small, resulting in large particle materials being stuck, thereby ensuring that large particle materials have sufficient space to jump and participate in collision, thereby improving crushing efficiency; 2. In the present invention, the large particles close to the outer ring of the filter screen and the filter screen are scraped off by the scraper and pushed to the feed port, and then fall again to be hit by the hammer head, and adjust and collide in the filter screen. The large particles will not block the small particles in the filter screen from being discharged through the filter holes, thereby improving the crushing and discharging efficiency, and preventing the small particles from being over-crushed due to the inability to discharge in time, thereby improving the quality of the crushed materials; 3. In the present invention, the adjusting block is rotated, the adjusting block drives the adjusting screw to rotate, the moving block moves on the adjusting screw, and the moving block drives the adjusting plate to move on the scraper, so as to change the distance between the side of the adjusting plate and the filter screen, thereby adjusting the amount of large particles of the outer ring of the filter screen to be scraped off according to the crushing efficiency and the amount of material input, ensuring that the large particles of the outer ring of the filter screen are scraped off, and the small particles of the inner ring of the filter screen are not blocked for discharge, thereby improving the crushing and discharge efficiency, and having stronger adaptability; 4. In the present invention, the material is put into the feed shell, the material enters the feed trough of the feed wheel, the feed motor drives the feed wheel to rotate, and the feed wheel rotates to put the material in the feed trough into the filter screen for crushing, which can make the amount of material put into the filter screen constant, and prevent the material crushing efficiency from decreasing due to too little or too much material input. At the same time, the constant material input amount can ensure that the thickness of the large particle material located on the outer circle of the filter screen changes little, and the scraper and the adjusted adjustment plate can scrape away the large particle material on the outer circle of the filter screen, thereby ensuring the crushing and discharging efficiency, and there is no need to frequently operate the position of the adjustment plate according to the material input amount, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of the fixed base, the inspection door and the feed assembly in the present invention; Figure 2A fixed base in the present invention; Figure 3 For the present invention Figure 2 A magnified view of part A; Figure 4 It is a schematic diagram of the structure of the crushing motor, operating assembly and crushing shell in the present invention; Figure 5 It is a schematic diagram of the structure of the filter screen, the crushing shell and the crushing motor in the present invention; Figure 6 For the present invention Figure 5 A magnified view of part B; Figure 7 It is a schematic diagram of the structure of the filter screen, hammer assembly, scraper assembly and partition in the present invention; Figure 8 It is a schematic diagram of the structure of the filter screen, the rotating cylinder, the support block and the support rod in the present invention; Fig. 9 It is a schematic diagram of the structure of the hammer head, the moving rod, the moving screw rod and the moving slider in the present invention; Fig.10 For the present invention Fig. 9 Enlarged view of part C; Fig.11 It is a schematic diagram of the structure of the partition plate and the hammer head in the present invention; Fig.12 For the present invention Fig.11 A magnified view of part D in the middle; Fig.13 It is a schematic diagram of the structure of the hammer head, partition, rotating cylinder and operating rod in the present invention.

[0020] In the figure: 1. rotating drum; 2. filter screen; 3. operating assembly; 31. operating rod; 32. driving motor; 33. driving belt; 34. driving bevel gear; 4. hammer assembly; 41. hammer head; 42. passive bevel gear; 43. moving screw; 44. moving slider; 45. fixed shell; 46. moving rod; 5. adjusting assembly; 51. adjusting screw; 52. moving block; 53. adjusting plate; 6. feeding assembly; 61. feeding shell; 62. feeding motor; 63. feeding wheel; 7. scraper assembly; 71. scraper; 72. compression torsion spring; 73. support block; 74. support rod; 8. unloading assembly; 81. unloading conveyor belt; 9. partition; 10. crushing shell; 11. fixed base; 12. sliding rod; 13. inspection door; 14. crushing motor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1-Figure 13 The crushing device shown in the figure comprises a rotating drum 1 and a filter screen 2. The filter screen 2 is a hollow cylindrical shape and has a plurality of filter holes. The rotating drum 1 can rotate in the filter screen 2. An operating assembly 3 and a plurality of hammer assemblies 4 are arranged in the rotating cylinder 1. The operating assembly 3 includes an operating rod 31, which is rotatably connected in the rotating cylinder 1. The hammer assembly 4 includes a hammer head 41. The rotating cylinder 1 can drive the hammer head 41 to rotate. When the operating rod 31 rotates relative to the rotating cylinder 1, the operating rod 31 can make the hammer head 41 move perpendicularly to the rotating cylinder 1. A scraper assembly 7 is also provided in the filter screen 2. The rotating drum 1 can drive the scraper assembly 7 to rotate in the filter screen 2. The scraper assembly 7 includes a scraper 71 and a compression torsion spring 72. The compression torsion spring 72 can make the scraper 71 in an inclined state and against the inner wall of the filter screen 2. A feed port is provided at the top of the filter screen 2. When the scraper 71 rotates to the feed port position, the compression torsion spring 72 can make the scraper 71 rotate to a vertical state.

[0023] The material is placed in the filter screen 2, and the rotating cylinder 1 drives the multiple hammer heads 41 to rotate. The hammer heads 41 collide with the material, so that the material bounces repeatedly between the filter screen 2 and the hammer heads 41 and is crushed. The material with a diameter smaller than the filter hole diameter of the filter screen 2 passes through the filter hole, and the material with a diameter larger than the filter hole diameter continues to be crushed. When the diameter of the material changes and the distance between the hammer head 41 and the filter screen 2 needs to be adjusted, the operating rod 31 is rotated, and the operating rod 31 drives the hammer head 41 to rotate perpendicularly to the rotating cylinder 1. The scraper 71 is rotated to change the distance between the hammer head 41 and the filter screen 2. In the process of crushing the material, the rotating cylinder 1 drives the scraper 71 to rotate. The scraper 71 scrapes off the material close to the filter screen 2 and retains it in the space between the scraper 71 and the filter screen 2, driving this part of the material to move. When the scraper 71 moves to the feed port position of the filter screen 2, the compression torsion spring 72 drives the scraper 71 to rotate to a vertical state, so that the material between the scraper 71 and the filter screen 2 enters the filter screen 2 again through the feed port for crushing.

[0024] By rotating the operating rod 31, the operating rod 31 drives the hammer heads 41 in all the hammer assemblies 4 to move perpendicularly to the rotating cylinder 1, and the distance between the hammer heads 41 and the filter screen 2 can be adjusted, so that the spacing between the hammer heads 41 and the filter screen 2 matches the material diameter, and has a good crushing effect for particle materials of different diameters, and can prevent the spacing between the hammer heads 41 and the filter screen 2 from being too large, so that small particle materials cannot repeatedly jump and be hit between the hammer heads 41 and the filter screen 2, and can also prevent the spacing between the hammer heads 41 and the filter screen 2 from being too small, resulting in large particle materials being stuck, thereby ensuring that large particle materials have sufficient space to jump and participate in collision, thereby improving crushing efficiency; The large particles close to the outer ring of the filter screen 2 and the filter screen 2 are scraped off by the scraper 71 and pushed to the feed port, and fall again to be hit by the hammer head 41, and adjust and collide in the filter screen 2. The large particles will not block the small particles in the filter screen 2 from being discharged through the filter holes, thereby improving the crushing and discharging efficiency, preventing the small particles from being over-crushed due to the inability to discharge in time, and improving the quality of the crushed materials.

[0025] Example 2, reference Figure 1-Figure 13 , which is different from the above-mentioned embodiment, the operating component 3 also includes a fixed plate, a driving motor 32, a driving belt member 33 and a plurality of driving bevel gears 34. The fixed plate is fixedly mounted on one end of the rotating cylinder 1, the driving motor 32 is fixedly mounted on the fixed plate, the driving belt member 33 includes a driving pulley, a passive pulley and a driving belt, the driving pulley is fixedly mounted on the output end of the driving motor 32, the passive pulley is fixedly mounted on the operating rod 31, and the driving belt is connected to the driving pulley and the passive pulley.

[0026] When the driving motor 32 is not started, the rotating cylinder 1 drives the operating rod 31 and the fixed plate to rotate synchronously, and the fixed plate drives the driving motor 32 and the driving belt member 33 to rotate synchronously, so that there is no relative rotation between the rotating cylinder 1 and the operating rod 31, and the hammer head 41 will not be driven to rotate.

[0027] When the driving motor 32 is started, the driving motor 32 drives the active pulley to rotate, the active pulley drives the driving belt to rotate, the driving belt causes the passive pulley to rotate, the passive pulley drives the operating rod 31 to rotate relative to the rotating cylinder 1, the operating rod 31 drives a plurality of driving bevel gears 34 to rotate, and the driving bevel gears 34 drive the corresponding hammer heads 41 to move perpendicularly to the rotating cylinder 1.

[0028] Example 3, reference Figure 1-Figure 13, which is different from the above-mentioned embodiment, a plurality of partitions 9 are fixedly mounted on the rotating cylinder 1, and the hammer assembly 4 also includes a passive bevel gear 42, a movable screw 43, a movable slider 44, a fixed shell 45 and a movable rod 46. The movable screw 43 is rotatably connected to the rotating cylinder 1, and one end of the movable screw 43 extends into the rotating cylinder 1. The passive bevel gear 42 is fixedly mounted on one end of the movable screw 43 and meshes with the driving bevel gear 34. The fixed shell 45 is fixedly mounted on the partition 9. The movable screw 43 is rotatably connected to the fixed shell 45 and extends into the fixed shell 45. The movable slider 44 is sleeved on the movable screw 43 and threadedly connected to the movable screw 43. The movable slider 44 is slidably fitted in the fixed shell 45. One end of the movable rod 46 is fixedly mounted on the movable slider 44. The movable rod 46 penetrates the fixed shell 45 and slidably fits with the fixed shell 45. The hammer head 41 is fixedly mounted on one end of the movable rod 46 away from the movable slider 44.

[0029] The rotating cylinder 1 drives the partition plate 9 to rotate, the partition plate 9 drives the fixed shell 45 to rotate, the fixed shell 45 drives the hammer assembly 4 to rotate, and the hammer head 41 in the hammer assembly 4 rotates to crush the material.

[0030] The moving screw 43 and the moving rod 46 are both arranged perpendicular to the rotating cylinder 1. When the driving bevel gear 34 rotates, the driving bevel gear 34 drives the passive bevel gear 42 to rotate, and the passive bevel gear 42 drives the moving screw 43 to rotate. The moving slider 44 moves when the moving screw 43 rotates, and the moving screw 43 drives the moving rod 46 to move. The moving rod 46 drives the hammer head 41 to move perpendicular to the rotating cylinder 1.

[0031] Example 4, reference Figure 1-Figure 13 , which is different from the above-mentioned embodiment, an adjustment component 5 is also provided on the scraper 71, and the adjustment component 5 includes two connecting blocks, an adjusting screw 51, an adjusting block, a moving block 52 and an adjusting plate 53. The two connecting blocks are fixedly mounted on the scraper 71, the adjusting screw 51 is rotatably connected to the connecting blocks, the adjusting block is fixedly mounted on the adjusting screw 51, the moving block 52 is fixedly mounted on the adjusting plate 53, and the moving block 52 is sleeved on the adjusting screw 51 and threadedly connected to the adjusting screw 51.

[0032] The adjusting block is rotated, and the adjusting block drives the adjusting screw 51 to rotate. The moving block 52 moves on the adjusting screw 51, and the moving block 52 drives the adjusting plate 53 to move on the scraper 71, so as to change the distance between the side of the adjusting plate 53 and the filter screen 2, so as to adjust the amount of large particles of material scraped off the outer circle of the filter screen 2 according to the crushing efficiency and the input amount of the material, so as to ensure that the large particles of material on the outer circle of the filter screen 2 are scraped off, and the small particles of material on the inner circle of the filter screen 2 are not blocked for discharge, thereby improving the crushing and discharging efficiency and having stronger adaptability.

[0033] Example 5, reference Figure 1-Figure 13, which is different from the above-mentioned embodiment, the scraper assembly 7 also includes a support block 73 and a support rod 74, the support block 73 is fixedly mounted on the rotating cylinder 1, one end of the support rod 74 is fixedly mounted on the support block 73, the scraper 71 is rotatably connected to the support rod 74, one end of the compression torsion spring 72 is fixedly mounted on the support rod 74, the other end of the compression torsion spring 72 is fixedly mounted on the scraper 71, and a dust cover is provided on the compression torsion spring 72.

[0034] The rotating cylinder 1 drives the supporting block 73 to rotate, the supporting block 73 drives the supporting rod 74 to rotate, and the supporting rod 74 drives the scraper 71 to rotate.

[0035] Example 6, reference Figure 1-Figure 13 , which is different from the above embodiment, is that the filter screen 2 is fixedly installed in the crushing shell 10, and a feed assembly 6 is arranged on the crushing shell 10. The feed assembly 6 includes a feed shell 61, a feed motor 62 and a feed wheel 63. The feed shell 61 is fixedly installed on the crushing shell 10 and is connected to the feed port of the filter screen 2. The feed motor 62 is fixedly installed on the feed shell 61, and the feed wheel 63 is rotatably connected in the feed shell 61. The top of the feed shell 61 is open, and a plurality of feed grooves are opened on the feed wheel 63. The output end of the feed motor 62 is fixedly installed on the feed wheel 63.

[0036] The material is put into the feed shell 61, and the material enters the feed trough of the feed wheel 63. The feed motor 62 drives the feed wheel 63 to rotate, and the feed wheel 63 rotates to put the material in the feed trough into the filter screen 2 for crushing, which can make the amount of material put into the filter screen 2 constant, and prevent the material crushing efficiency from decreasing due to too little or too much material input. At the same time, the constant material input amount can ensure that the thickness of the large particles located on the outer circle of the filter screen 2 changes little, and the scraper 71 and the adjusted adjustment plate 53 can scrape away the large particles of the outer circle of the filter screen 2 to ensure the crushing and discharging efficiency, and there is no need to frequently operate the position of the adjustment plate 53 according to the material input amount, which is more convenient.

[0037] Example 7, reference Figure 1-Figure 13 , which is different from the above embodiment, a material discharge component 8 is further provided in the crushing shell 10, and the material discharge component 8 includes a material discharge conveyor belt 81, two material discharge rollers and a material discharge motor. The material discharge conveyor belt 81 is arranged below the filter screen 2, and the two material discharge rollers are rotatably connected to the crushing shell 10. The material discharge conveyor belt 81 is sleeved on the two material discharge rollers. The material discharge motor is fixedly installed on the crushing shell 10, and the output end of the material discharge motor is fixedly installed on one of the material discharge rollers.

[0038] The small particles in the filter screen 2 fall onto the unloading conveyor belt 81 through the filter holes. The unloading motor drives the unloading roller to rotate, and the unloading roller drives the unloading conveyor belt 81 to rotate. The unloading conveyor belt 81 transfers the crushed materials out of the crushing shell 10.

[0039] Example 8, reference Figure 1-Figure 13 , which is different from the above-mentioned embodiment, a fixed base 11 is fixedly installed at the bottom of the crushing shell 10, both sides of the crushing shell 10 are opened, a sliding rod 12 is fixedly installed on the fixed base 11, and inspection doors 13 are arranged on both sides of the crushing shell 10. The inspection door 13 is sleeved on the sliding rod 12 and slidably cooperates with the sliding rod 12, and one side of the inspection door 13 is against the fixed base 11.

[0040] The inspection door 13 can move on the sliding rod 12 to expose the crushing shell 10, which is convenient for cleaning the materials in the crushing shell 10 and for inspection. The inspection door 13 is fixed by one of bolts and buckles to prevent accidental opening.

[0041] Example 9, reference Figure 1-Figure 13 , which is different from the above-mentioned embodiment, a crushing motor 14 is fixedly mounted on the fixed base 11 , and an output end of the crushing motor 14 is fixedly mounted on the rotating drum 1 .

[0042] The crushing motor 14 drives the rotating drum 1 to rotate.

[0043] An energy-saving crushing method for feed finishing, using the above-mentioned crushing device, comprises the following steps: The material is placed in the filter screen 2, and the rotating cylinder 1 drives the multiple hammer heads 41 to rotate. The hammer heads 41 collide with the material, so that the material bounces repeatedly between the filter screen 2 and the hammer heads 41 and is crushed; The material with a diameter smaller than the filter hole diameter of the filter screen 2 is discharged through the filter hole, and the material with a diameter larger than the filter hole diameter continues to be crushed; When the diameter of the material changes and the distance between the hammer head 41 and the filter screen 2 needs to be adjusted, the operating rod 31 is rotated, and the operating rod 31 drives the hammer head 41 to rotate perpendicularly to the rotating cylinder 1, so that the distance between the hammer head 41 and the filter screen 2 changes; In the process of crushing the material, the rotating drum 1 drives the scraper 71 to rotate, and the scraper 71 scrapes off the material close to the filter screen 2 and retains it in the space between the scraper 71 and the filter screen 2, driving this part of the material to move. When the scraper 71 moves to the feed port position of the filter screen 2, the compression torsion spring 72 drives the scraper 71 to rotate to a vertical state, so that the material between the scraper 71 and the filter screen 2 enters the filter screen 2 again through the feed port for crushing.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crushing device, comprising a rotating drum and a filter screen, characterized in that: The filter screen is a hollow cylindrical shape, a plurality of filter holes are provided on the filter screen, and the rotating cylinder can rotate inside the filter screen; An operating assembly and a plurality of hammer assemblies are arranged in the rotating cylinder. The operating assembly includes an operating rod, which is rotatably connected in the rotating cylinder. The hammer assembly includes a hammer head, and the rotating cylinder can drive the hammer head to rotate. When the operating rod rotates relative to the rotating cylinder, the operating rod can make the hammer head move perpendicular to the rotating cylinder. A scraper assembly is also provided in the filter screen, and the rotating cylinder can drive the scraper assembly to rotate in the filter screen. The scraper assembly includes a scraper and a compression torsion spring, and the compression torsion spring can make the scraper in an inclined state and abut against the inner wall of the filter screen. A feed port is provided on the top of the filter screen, and when the scraper rotates to the feed port position, the compression torsion spring can rotate the scraper to a vertical state.

2. A crushing device according to claim 1, characterized in that: The operating assembly also includes a fixed plate, a driving motor, a driving belt member and a plurality of driving bevel gears. The fixed plate is fixedly mounted on one end of the rotating cylinder, the driving motor is fixedly mounted on the fixed plate, the driving belt member includes a driving pulley, a passive pulley and a driving belt, the driving pulley is fixedly mounted on the output end of the driving motor, the passive pulley is fixedly mounted on the operating rod, and the driving belt is connected to the driving pulley and the passive pulley.

3. A crushing device according to claim 2, characterized in that: A plurality of partitions are fixedly mounted on the rotating cylinder, and the hammer assembly also includes a passive bevel gear, a movable screw, a movable slider, a fixed shell and a movable rod. The movable screw is rotatably connected to the rotating cylinder, and one end of the movable screw extends into the rotating cylinder. The passive bevel gear is fixedly mounted on one end of the movable screw and meshes with the driving bevel gear. The fixed shell is fixedly mounted on the partition, and the movable screw is rotatably connected to the fixed shell and extends into the fixed shell. The movable slider is sleeved on the movable screw and threadedly connected to the movable screw. The movable slider is slidably fitted in the fixed shell, and one end of the movable rod is fixedly mounted on the movable slider. The movable rod passes through the fixed shell and slidably fits into the fixed shell, and the hammer head is fixedly mounted on one end of the movable rod away from the movable slider.

4. A crushing device according to claim 1, characterized in that: The scraper is also provided with an adjustment component, which includes two connecting blocks, an adjustment screw, an adjustment block, a moving block and an adjustment plate. The two connecting blocks are fixedly mounted on the scraper, the adjustment screw is rotatably connected to the connecting blocks, the adjustment block is fixedly mounted on the adjustment screw, the moving block is fixedly mounted on the adjustment plate, and the moving block is sleeved on the adjustment screw and threadedly connected to the adjustment screw.

5. A crushing device according to claim 1, characterized in that: The scraper assembly also includes a support block and a support rod, the support block is fixedly mounted on the rotating cylinder, one end of the support rod is fixedly mounted on the support block, the scraper is rotatably connected to the support rod, one end of the compression torsion spring is fixedly mounted on the support rod, the other end of the compression torsion spring is fixedly mounted on the scraper, and a dust cover is provided on the compression torsion spring.

6. A crushing device according to claim 1, characterized in that: The filter screen is fixedly installed in the crushing shell, and a feed assembly is arranged on the crushing shell, and the feed assembly includes a feed shell, a feed motor and a feed wheel. The feed shell is fixedly installed on the crushing shell and is connected with the feed port of the filter screen, the feed motor is fixedly installed on the feed shell, and the feed wheel is rotatably connected in the feed shell. The top of the feed shell is opened, and a plurality of feed slots are opened on the feed wheel. The output end of the feed motor is fixedly installed on the feed wheel.

7. A crushing device according to claim 6, characterized in that: A material discharge assembly is also provided in the crushing shell, and the material discharge assembly includes a material discharge conveyor belt, two material discharge rollers and a material discharge motor. The material discharge conveyor belt is provided below the filter screen, and the two material discharge rollers are both rotatably connected to the crushing shell. The material discharge conveyor belt is sleeved on the two material discharge rollers, and the material discharge motor is fixedly mounted on the crushing shell, and the output end of the material discharge motor is fixedly mounted on one of the material discharge rollers.

8. A crushing device according to claim 6, characterized in that: A fixed base is fixedly installed at the bottom of the crushing shell, both sides of the crushing shell are opened, a sliding rod is fixedly installed on the fixed base, and inspection doors are arranged on both sides of the crushing shell. The inspection doors are sleeved on the sliding rod and slidably cooperate with the sliding rod, and one side of the inspection door is against the fixed base.

9. A crushing device according to claim 8, characterized in that: A crushing motor is fixedly mounted on the fixed base, and an output end of the crushing motor is fixedly mounted on the rotating cylinder.

10. An energy-saving crushing method for feed finishing, using the crushing device as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: The material is placed in the filter screen, and the rotating drum drives multiple hammer heads to rotate. The hammer heads collide with the material, causing the material to bounce repeatedly between the filter screen and the hammer heads and be broken; The material with a smaller diameter than the filter hole of the filter screen will be discharged through the filter hole, while the material with a larger diameter than the filter hole will continue to be crushed; When the diameter of the material changes and the distance between the hammer head and the filter screen needs to be adjusted, the operating lever is rotated, and the operating lever drives the hammer head to rotate perpendicular to the rotating cylinder, so that the distance between the hammer head and the filter screen changes; In the process of crushing the material, the rotating drum drives the scraper to rotate, and the scraper scrapes off the material close to the filter screen and retains it in the space between the scraper and the filter screen, driving this part of the material to move. When the scraper moves to the feed port of the filter screen, the compression torsion spring drives the scraper to rotate to a vertical state, so that the material between the scraper and the filter screen passes through the feed port and enters the filter screen again for crushing.

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