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CN-122006855-A - Raw material crushing device and method for corn pellet feed production

CN122006855ACN 122006855 ACN122006855 ACN 122006855ACN-122006855-A

Abstract

The invention relates to the technical field of corn pellet feed production, and discloses a raw material crushing device for corn pellet feed production, which comprises a crushing frame mounted on a support, wherein an arc screen is mounted in the crushing frame, a motor body mounted on the support is mounted in the crushing frame, a main shaft is mounted in the crushing frame, a crushing unit is arranged on the main shaft, annular frames are mounted on two sides of the crushing frame, annular sleeves are arranged in the annular frames, each annular sleeve comprises an inner ring and an outer ring, a plurality of arc protrusions are fixedly mounted on the outer wall of each inner ring, and arc concave is formed in the inner wall of each outer ring.

Inventors

  • SUN WEITAO
  • Qu Linwo

Assignees

  • 莱州市宝昌饲料有限公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (10)

  1. 1. The raw material crushing device for corn pellet feed production is characterized by comprising a crushing frame (2) fixedly installed on a support (1), wherein an arc-shaped screen (3) is symmetrically installed inside the crushing frame (2), a motor body (4) installed on the support (1), a main shaft (5) rotationally connected with the crushing frame (2) is installed inside the crushing frame (2), one end of the main shaft (5) penetrates through the inner wall of the crushing frame (2) and is fixedly connected with the output end of the motor body (4), a crushing unit (6) for crushing corn pellets is arranged on the main shaft (5), the crushing unit (6) comprises a plurality of rotary tables (61) installed on the main shaft (5), a plurality of guide groove bodies (62) are formed in each rotary table (61), the steel shaft bodies (63) are in one-to-one correspondence with the guide groove bodies (62), the steel shaft bodies (63) are arranged in the guide groove bodies (62) in a penetrating mode, and can limit sliding in the guide groove bodies (62), and a plurality of hammer pieces (64) are installed on the steel shaft bodies (63) between the adjacent rotary tables (61); the steel shaft body (63) both ends all threaded connection has fixed shaft body (65) to embedding has ball (66) at the both ends of fixed shaft body (65), smash frame (2) both sides and all fixed mounting have annular frame (7), and be provided with annular sleeve (8) inside annular frame (7), annular sleeve (8) include inner circle (81) and outer lane (82), inner circle (81) outer wall fixed mounting has a plurality of arc protruding (83), and outer lane (82) inner wall be provided with a plurality of arc indent (84) with arc protruding (83) one-to-one.
  2. 2. The raw material crushing device for corn pellet feed production according to claim 1, wherein the balls (66) at one end of the fixed shaft body (65) are in contact with the outer wall of the inner ring (81), the balls (66) at the other end of the fixed shaft body (65) are in contact with the inner wall of the outer ring (82), the outer wall surface of the inner ring (81) and the inner wall surface of the outer ring (82) comprise a first sliding surface (85), an inclined surface (86) and a second sliding surface (87), and when the balls (66) are positioned on the inclined surface (86) or the second sliding surface (87), the steel shaft body (63) drives the hammer (64) to perform expansion movement under the action of the fixed shaft body (65), and the distance between the hammer (64) and the arc-shaped screen (3) is reduced.
  3. 3. The raw material crushing device for corn pellet feed production according to claim 2, wherein the annular frame (7) is internally provided with a limiting frame (9) which is in sliding connection with the inner wall of the annular frame (7), the annular sleeve (8) is positioned in the limiting frame (9), the annular sleeve (8) is rotationally connected with the inner wall of the limiting frame (9), the outer wall of the limiting frame (9) is fixedly provided with a plurality of connecting sleeves (91) at equal angles in a circular shape, one end of the annular frame (7) is also provided with a plurality of screw rod parts (71) which are in one-to-one correspondence with the connecting sleeves (91), the screw rod parts (71) are rotationally connected with the inner wall of the annular frame (7), the screw rod parts (71) are positioned in the connecting sleeves (91) and are in threaded fit with the connecting sleeves (91), and the connecting sleeves (91) are rotated to drive the limiting frame (9) to limit sliding in the annular frame (7).
  4. 4. A raw material crushing device for corn pellet feed production according to claim 3, wherein the outer wall of the annular frame (7) is fixedly provided with a protective frame (10), one end of the screw rod part (71) is positioned in the protective frame (10) and is fixedly provided with a meshing gear (72), the protective frame (10) is internally provided with a gear body (101) which is in meshing state with the meshing gears (72), and a rotating shaft (102) which is rotationally connected with the inner wall of the protective frame (10) is fixedly arranged on the gear body (101).
  5. 5. The device for pulverizing corn pellet feed according to claim 4, wherein one end of the rotating shaft (102) is located outside the protective frame (10), a handle (103) is fixedly installed on one end of the rotating shaft (102) located outside the protective frame (10), the end portion of the handle (103) is in threaded connection with a locking bolt (104), a metal friction plate (105) is fixedly installed on the outer wall of the protective frame (10), and the end portion of the locking bolt (104) is in contact with the metal friction plate (105).
  6. 6. The device for pulverizing corn pellet feed according to claim 5, wherein a fixed sleeve (92) is fixedly arranged on one side of the limiting frame (9), a movable sleeve (93) is arranged in the fixed sleeve (92), a plurality of guide shaft bodies (94) are fixedly arranged in the fixed sleeve (92), the movable sleeve (93) is slidably connected with the guide shaft bodies (94), a plurality of spring portions (95) which are in one-to-one correspondence with the guide shaft bodies (94) are connected between the movable sleeve (93) and one end inner wall of the fixed sleeve (92), and the spring portions (95) are sleeved on the guide shaft bodies (94).
  7. 7. The raw material crushing device for corn pellet feed production according to claim 6, wherein a steel sleeve (88) is fixedly arranged on one side of the annular sleeve (8), a steel ball (89) is embedded into the outer wall of the steel sleeve (88), the steel sleeve (88) is positioned in the fixed sleeve (92), a sliding groove body (931) and an arc-shaped groove body (932) are formed in the inner wall of the fixed sleeve (92), and the steel ball (89) slides in the sliding groove body (931) and the arc-shaped groove body (932) in a limiting mode.
  8. 8. The device for pulverizing corn pellet feed according to claim 7, wherein an electromagnet (96) is fixedly installed in the fixed sleeve (92), one end of the movable sleeve (93) away from the spring part (95) is a magnetic surface, and the electromagnet (96) is electrified to generate attraction force on the magnetic surface of the movable sleeve (93).
  9. 9. The raw material crushing device for corn pellet feed production according to claim 8, wherein a plurality of supports (67) which are in one-to-one correspondence with the fixed shaft bodies (65) are fixedly arranged on the two rotary tables (61), the fixed shaft bodies (65) are in sliding connection with the supports (67), and a reset spring (68) is connected between one end of each fixed shaft body (65) and each support (67).
  10. 10. A crushing method of a raw material crushing device for producing corn pellet feed is characterized by comprising the following steps of: S1, starting and preliminary crushing, namely starting a motor body (4), wherein the output end of the motor body (4) drives a main shaft (5) to rotate, the main shaft (5) drives a plurality of turntables (61) to synchronously rotate at high speed, a steel shaft body (63) on the turntables (61) and hammer sheets (64) on the steel shaft body move circumferentially along with the turntables (61), and under the action of centrifugal force, the hammer sheets (64) are unfolded radially, and corn particles are crushed by strong impact of the hammer sheets (64) rotating at high speed, so that preliminary crushing is realized; S2, intermittent outward expansion grinding, namely, in the rotating process of the rotary table (61), fixing shaft bodies (65) fixedly arranged at two ends of a steel shaft body (63) synchronously and circularly move along with the fixing shaft bodies, balls (66) at the end parts of the fixing shaft bodies (65) continuously contact with the outer wall of an inner ring (81) and the inner wall of an outer ring (82) of the annular sleeve (8) and roll, when the balls (66) roll to the arc-shaped bulge (83) of the inner ring (81) and the arc-shaped concave (84) of the outer ring (82), the balls (66) are forced to be ejected outwards due to surface change, and the fixing shaft bodies (65) drive the steel shaft bodies (63) to slide outwards in a guide groove body (62) of the rotary table (61), namely outward expansion movement is realized, at the moment, a gap between a hammer piece (64) and the arc-shaped screen (3) is reduced, and the hammer piece (64) actively cuts into a high-speed material circulation layer closely attached to the arc-shaped screen (3); S3, when the striking range is reduced due to abrasion at the end part of the hammer sheet (64), a locking bolt (104) at the end part of a rotatable handle (103) is separated from a metal friction plate (105), the locking of a rotating shaft (102) is released, the handle (103) drives the rotating shaft (102) and a gear body (101) to rotate, the gear body (101) drives a plurality of meshing gears (72) meshed with the rotating shaft to synchronously rotate, and further drives a screw rod part (71) to rotate, the screw rod part (71) drives the connecting sleeve (91) and a limiting frame (9) to axially move in an annular frame (7) through threaded fit, the limiting frame (9) drives an annular sleeve (8) in the limiting frame to axially move together, so that the initial contact positions of an inclined surface (86) and a sliding surface II (87) on the annular sleeve (8) relative to a ball (66) are changed, and after the initial contact positions of the locking bolt (104) are adjusted again, and the locking positions are locked; S4, adjusting a dynamic expansion position, namely periodically starting an electromagnet (96) by an operator, generating magnetic attraction force by the electromagnet (96), attracting a magnetic surface of a movable sleeve (93) to overcome the tensile force of a spring part (95), sliding the movable sleeve (93) towards the electromagnet (96) along a guide shaft body (94), enabling the inner wall of the movable sleeve (93) to act on a steel ball (89) on the outer wall of a steel sleeve (88) in the sliding process, forcing the steel ball (89) to enter an arc-shaped groove (932) from a sliding groove (931) on the inner wall of a fixed sleeve (92), and driving the steel sleeve (88) and an annular sleeve (8) fixedly connected with the steel sleeve to rotate when the steel ball (89) moves along the arc-shaped groove (932), wherein the rotation of the annular sleeve (8) changes the positions of the arc-shaped bulge (83) and the arc-shaped indent (84) on the annular sleeve, so that the ball (66) is ejected out in different angular positions in the subsequent circular motion, and dynamic change of the expansion position of a hammer (64) is realized; S5, continuously crushing and screening, namely enabling qualified corn particles to pass through sieve holes of the arc-shaped sieve (3) to form a finished product under the impact and airflow actions of the hammer (64), and enabling unqualified coarse particles to be intercepted by the arc-shaped sieve (3) and continuously subjected to the combined actions of intermittent outward expansion impact of the hammer (64) and dynamically-changed impact areas in the crushing frame (2) until the particle size of the coarse particles is reduced to be capable of passing through the arc-shaped sieve (3).

Description

Raw material crushing device and method for corn pellet feed production Technical Field The invention relates to the technical field of corn pellet feed production, in particular to a raw material crushing device and a crushing method for corn pellet feed production. Background In the corn pellet feed production process, raw material crushing is a core link for determining the subsequent pelleting quality and animal digestion and absorption rate, a water drop type crusher is commonly adopted in the industry at present to finish the operation, when the corn pellet feed is in work, materials enter a water drop type crushing chamber from a feed inlet, a motor output end drives a rotary table to rotate, a plurality of shaft bodies are circumferentially arranged on the rotary table, a plurality of hammer sheets are arranged on each shaft body, after corn pellets enter the crushing chamber, the corn pellets are firstly impacted at a high speed to be crushed by the hammer sheets, then thrown to a sieve plate on the inner wall of the crushing chamber, and subjected to further impact, shearing and grinding actions in a gap between the hammer sheets and the sieve plate until the particle size is smaller than the sieve mesh diameter, and then the corn pellets pass through the sieve to finish the crushing process; In the actual working process, when the turntable rotates at a high speed, under the action of strong centrifugal force, the material is thrown to the inner surface of the screen, the qualified material directly passes through the screen, the unqualified material is further impacted, sheared and ground until the particle size is smaller than the diameter of the sieve pores, however, a part of fine corn particles originally existing in the raw material and secondary small particles generated by splitting after primary crushing are usually designed, the particles have the characteristics of light weight and small inertia, the motion track in a high-speed airflow field in the crushing chamber is extremely easy to deflect, the small particles are difficult to stably enter a main beating area covered by the high-speed rotation of a hammer sheet like coarse particles, the small particles move along with the airflow disorder in a clearance space between the hammer sheet and the screen or are attached to the vicinity of the screen surface, a certain space is reserved because the clearance between the hammer sheet and the screen is fixed, the relative distance between the hammer sheet and the small particles cannot be further reduced when the hammer sheet rotates at a high speed, the hammer sheet is difficult to further impact the edges of the areas or the small particles attached to the screen surface, the impact surface is difficult to be continuously controlled along with the small particles, the impact surface is difficult to be continuously controlled along with the small-size of the small particles, the impact surface is difficult to be continuously contacted with the small particles, the impact surface is difficult to be continuously and the impact surface is difficult to be continuously controlled, the impact surface is difficult to be prevented from the small particles is difficult to be continuously and stably contacted with the particles and continuously to be impacted and stably impact the particles because the particles are not in the clearance between the small particle size is always and fixed, we propose a raw material crushing device and a crushing method for producing corn pellet feed. Disclosure of Invention The invention aims to provide a raw material crushing device and a crushing method for corn pellet feed production, which are used for solving the problems in the background technology. The invention provides a raw material crushing device for corn pellet feed production, which comprises a crushing frame fixedly arranged on a bracket, wherein arc-shaped screens are symmetrically arranged in the crushing frame, a motor body arranged on the bracket, a main shaft which is rotationally connected with the crushing frame is arranged in the crushing frame, one end of the main shaft penetrates through the inner wall of the crushing frame and is fixedly connected with the output end of the motor body, a crushing unit for crushing corn pellets is arranged on the main shaft, the crushing unit comprises a plurality of turntables arranged on the main shaft, each turntable is provided with a plurality of guide groove bodies, and also comprises a plurality of steel shaft bodies, the steel shaft bodies are in one-to-one correspondence with the guide groove bodies, the steel shaft bodies penetrate through the guide groove bodies of the turntables and can slide in a limiting manner in the guide groove bodies, and a plurality of hammer pieces are arranged on the steel shaft bodies between the adjacent turntables; the steel shaft body both ends equal threaded connection has the fixed axle body to the both ends embe