Rotary crushing equipment of crusher

Abstract

The utility model relates to the technical field of crushing, in particular to rotary crushing equipment of a crusher, which comprises a mechanism main body, a crushing component is arranged in the mechanism main body, the crushing component comprises a coarse crushing roller group, a left fine roller group and a right fine roller group, the coarse crushing roller group is positioned in the middle of a crushing cavity, and the left fine roller group is positioned in the middle of the crushing cavity. The left fine roller set and the right fine roller set are located below the coarse crushing roller set, the left fine roller set is located on the left side of the right fine roller set, a left shaft and a right shaft are fixedly inserted into the left fine roller set and the right fine roller set correspondingly, and the front ends and the rear ends of the left shaft and the right shaft are assembled on the front side wall and the rear side wall of the mechanism body in a penetrating and inserting mode through bearings and extend to the outside. Guide baffles are arranged on the upper portion of the crushing cavity, and an assembly base is hinged to the upper ends of the two guide baffles through hinge shafts and fixed to the inner wall of the upper portion of the mechanism body. According to the utility model, multi-stage coarse and fine crushing can be conveniently carried out during crushing, so that the crushing is more thorough, and the crushing use effect is conveniently improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing, in particular to a rotary crushing device of a crusher. Background Art

[0002] Crusher, also known as stone crusher, is a crushing machine used in the processing of metal and non-metallic ores. It can crush the mined raw ore into small particles by squeezing and bending. There are many mechanisms and parts that make up the crusher, including but not limited to the feeding mechanism, crushing mechanism, unloading mechanism, etc. Some also have dust reduction and dust prevention mechanisms, etc. Among them, the crushing mechanism is an indispensable part, such as extrusion crushing and rotation crushing;

[0003] In this regard, China's patent application number: CN202321078242.3 discloses a crushing device, including a crushing shell and two groups of fitted crushing rollers located inside the crushing shell, a conical integrated feed hopper is fixed on the top of the crushing shell, and the crushing roller is installed on the bottom side of the crushing shell corresponding to the feed hopper, two groups of telescopic kit groups are rotatably arranged on the inner walls of both sides of the crushing shell, and the telescopic kit group includes a connecting sleeve, and both ends of the crushing roller are provided with an integrated connecting end, and the two groups of crushing rollers are respectively connected with the connecting sleeves on both sides of the crushing shell through the connecting ends at both ends, and the connecting ends are fixedly connected with the connecting sleeves by bolts, and one side outer wall of the crushing shell is provided with a power component fixedly connected with the two groups of telescopic kit groups;

[0004] However, the crushing mechanism in the existing crusher is not convenient for multi-level coarse and fine crushing during crushing, which easily causes incomplete crushing and affects the crushing effect;

[0005] Therefore, in order to solve the above problems, a rotary crushing device for a crusher is proposed. Summary of the invention

[0006] The utility model aims to provide a rotary crushing device for a crusher to solve the problem that the crushing mechanism in the existing crusher proposed in the above background technology is inconvenient to perform multi-level coarse and fine crushing during crushing, which easily causes incomplete crushing and affects the crushing effect.

[0007] To achieve the above object, the utility model provides the following technical solutions: a rotary crushing device of a crusher, comprising a mechanism body, a crushing chamber is provided inside the mechanism body, and the mechanism body and the crushing chamber are of the same width from top to bottom, side frames are fixedly provided at the upper and lower ends of the mechanism body, and a through hole is provided inside the side frame;

[0008] A crushing assembly is arranged inside the main body of the mechanism, and the crushing assembly comprises a coarse crushing roller group, a left fine roller group and a right fine roller group. The coarse crushing roller group is located in the middle of the crushing chamber, the left fine roller group and the right fine roller group are located below the coarse crushing roller group, and the left fine roller group is located on the left side of the right fine roller group. A left shaft and a right shaft are respectively inserted and fixed inside the left fine roller group and the right fine roller group. The front and rear ends of the two groups of left shafts and right shafts are inserted and assembled on the front and rear side walls of the main body of the mechanism through bearings and extend to the outside. The coarse crushing roller group comprises a coarse roller one and a coarse roller two, and the coarse roller one and the coarse roller two are also respectively inserted and assembled on the front and rear side walls of the main body of the mechanism through the upper shaft one and the upper shaft two. A material guide baffle is arranged on the upper part of the crushing chamber, and the upper ends of the two groups of material guide baffles are hinged with an assembly seat through a hinge shaft, and the assembly seat is fixed to the upper inner wall of the main body of the mechanism.

[0009] Preferably, the front ends of the upper shaft one and the upper shaft two are both equipped with upper transmission gears, and the two groups of upper transmission gears are meshed with each other. The front ends of the left shaft are also respectively equipped with left transmission gears, and the two groups of left transmission gears are meshed with each other. The front ends of the right shaft are also respectively equipped with right transmission gears that are meshed with each other. The upper transmission gears, left transmission gears and right transmission gears are all located on the front side of the mechanism body.

[0010] Preferably, the rear end of the upper shaft two is equipped with a servo motor through a coupling, the bottom support of the servo motor is equipped with a support frame, and the support frame is installed on the outer wall of the rear side of the mechanism body, and a transmission pulley is fixed to the rear end of the upper shaft one, and the outer wall of the transmission pulley is sleeved with a transmission main belt, and the inside of the transmission main belt is also equipped with a driven wheel one and a driven wheel two, the driven wheel one is fixed at the rear end of the right shaft, and the driven wheel two is fixed at the rear end of the left shaft, the outer wall of the transmission pulley, the outer wall of the driven wheel one, the outer wall of the driven wheel two and the inner wall of the transmission main belt are all fixed with mutually meshing teeth, and the outer diameter of the transmission pulley is larger than the outer diameters of the driven wheels one and two, and the outer cover of the transmission main belt is provided with a back cover frame, and the back cover frame is installed on the outer wall of the rear side of the mechanism body.

[0011] Preferably, the upper transmission gear outer cover is provided with a front cover frame, the left transmission gear and the right transmission gear outer covers are provided with lower cover frames, and maintenance inner cavities corresponding to the left transmission gear and the right transmission gear are respectively opened inside the lower cover frames, the front cover frame and the lower cover frame are assembled on the front side wall of the mechanism body by bolts, and the front cover frame and the lower cover frame are both covered with transparent covers.

[0012] Preferably, a diverter guide plate is arranged directly below the crushing assembly, and the front and rear ends of the diverter guide plate are assembled on the front and rear inner walls of the mechanism body, side guide plates are arranged on both sides below the crushing assembly, and the back of the side guide plate is supported by a supporting back frame, the diverter guide plate is peak-shaped, and the lower end of the diverter guide plate and the lower end of the side guide plate are inclined toward the center above the left fine roller group and the right fine roller group.

[0013] Preferably, a transverse push rod is installed at the lower back of the material guide baffle, and assembly slide frames are sleeved on the front and rear ends of the transverse push rod, and two groups of assembly slide frames are installed on the front and rear side walls of the mechanism body, and an inner slide groove corresponding to the transverse push rod is opened inside the assembly slide frame, and a sealing curtain is fixed on the inner wall of the inner slide groove. Push-pull blocks are fixed to the front and rear outer ends of the transverse push rod, and limit screws and limit slides are inserted through the upper and lower ends of the push-pull block, and the limit screws and limit slides are respectively supported and assembled by mounting seats, and fastening nuts are provided on both sides of the push-pull block, and the two groups of fastening nuts are respectively threaded on the surface of the limit screw.

[0014] Preferably, the back of the assembly seat is assembled on the left and right side walls of the mechanism body by means of assembly bolts, and an adjustment groove corresponding to the material guide baffle is opened at the lower part of the assembly seat, a torsion spring is sleeved on the surface of the hinge shaft, one end of the torsion spring is clamped on the top wall of the adjustment groove, and the other end of the torsion spring is clamped on the upper wall of the material guide baffle.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model facilitates multi-level coarse and fine crushing during crushing, making the crushing more thorough and facilitating improving the crushing effect;

[0016] The utility model is provided with a crushing assembly, and with the cooperation of the coarse crushing roller group and the left fine roller group and the right fine roller group, it is convenient to carry out multi-stage coarse and fine crushing of materials, that is, preliminary coarse crushing is carried out by the coarse crushing roller group, and then the crushed materials are crushed again by the cooperation of the left fine roller group and the right fine roller group, making the use more convenient and efficient, and the crushing effect is better. Through this design, the convenience and practicality of the rotating crushing mechanism of the crusher are improved.

[0017] The utility model is provided with a material guide baffle, which is convenient and auxiliary for guiding and discharging materials from above under the hinge connection of the hinge shaft and the assembly seat, making the operation more convenient. Through this design, the convenience and practicality of the rotating crushing mechanism of the crusher are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model;

[0020] Figure 3 It is a rear view schematic diagram of the structure of the utility model;

[0021] Figure 4 For this utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0022] Figure 5 For this utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0023] In the figure: 100, mechanism body; 110, crushing chamber; 120, side frame; 130, through hole; 200, crushing assembly; 210, coarse crushing roller group; 211, coarse roller one; 212, coarse roller two; 213, upper shaft one; 214, upper shaft two; 215, upper transmission gear; 220, left fine roller group; 221, left shaft; 222, left transmission gear; 230, right fine roller group; 231, right shaft; 232, right transmission gear; 240, servo motor; 241, support frame; 242, transmission pulley; 243, transmission main belt; 244, driven wheel one; 245, driven wheel two; 246, driven wheel three; 247, driven wheel three; 248, driven wheel three; 249, driven wheel three; 250, driven wheel three; 251, driven wheel three; 252, driven wheel three; 253, driven wheel three; 254, driven wheel three; 255, driven wheel three; 256, driven wheel three; 257, driven wheel three; 258, driven wheel three; 259, driven wheel three; 260, driven wheel three; 261, support frame; 262, driving pulley; 263, driving main belt; 264, driven wheel one; 265, driven wheel two; 266, driven wheel three; 267, driven wheel three; 268, driven wheel three; 269, driven wheel three; 270, driven wheel three; 271, driven wheel three; 272, driven wheel three; 273, driven wheel three 6. Teeth; 247. Back cover frame; 250. Front cover frame; 251. Transparent cover; 260. Lower cover frame; 261. Maintenance inner cavity; 270. Diversion guide plate; 271. Side guide plate; 272. Support back frame; 300. Material guide baffle; 310. Hinge shaft; 311. Torsion spring; 320. Assembly seat; 321. Assembly bolt; 322. Adjustment groove; 330. Horizontal push rod; 340. Assembly slide frame; 341. Inner slide groove; 342. Sealing curtain; 350. Push-pull block; 351. Limit slide; 360. Limit screw; 361. Mounting seat; 362. Fastening nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , an embodiment provided by the utility model:

[0026] A rotary crushing device of a crusher includes a mechanism body 100, a crushing chamber 110 is provided inside the mechanism body 100, and the mechanism body 100 and the crushing chamber 110 have the same width from top to bottom, side frames 120 are fixedly provided at the upper and lower ends of the mechanism body 100, and a through hole 130 is provided inside the side frame 120;

[0027] The main body 100 is provided with a crushing assembly 200, which comprises a coarse crushing roller group 210, a left fine roller group 220 and a right fine roller group 230. The coarse crushing roller group 210 is located in the middle of the crushing chamber 110, the left fine roller group 220 and the right fine roller group 230 are located below the coarse crushing roller group 210, and the left fine roller group 220 is located on the left side of the right fine roller group 230. The left fine roller group 220 and the right fine roller group 230 are respectively inserted and fixed with a left shaft 221 and a right shaft 231. The two groups of left shafts 221 and right shafts 231 are arranged in a front and rear direction. The two ends are inserted and assembled on the front and rear side walls of the mechanism body 100 through bearings and extend to the outside. The coarse crushing roller group 210 includes a coarse roller 1 211 and a coarse roller 2 212, and the coarse roller 1 211 and the coarse roller 2 212 are also inserted and assembled on the front and rear side walls of the mechanism body 100 through an upper shaft 1 213 and an upper shaft 2 214, respectively. A material guide baffle 300 is arranged on the upper part of the crushing chamber 110. The upper ends of the two groups of material guide baffles 300 are hinged with an assembly seat 320 through a hinge shaft 310, and the assembly seat 320 is fixed to the upper inner wall of the mechanism body 100.

[0028] Furthermore, the front ends of the upper shaft 1 213 and the upper shaft 2 214 are both equipped with upper transmission gears 215, and the two groups of upper transmission gears 215 are meshed with each other. The front ends of the left shaft 221 are also respectively equipped with left transmission gears 222, and the two groups of left transmission gears 222 are meshed with each other. The front ends of the right shaft 231 are also respectively equipped with right transmission gears 232 that are meshed with each other. The upper transmission gear 215, the left transmission gear 222 and the right transmission gear 232 are all located on the front side of the mechanism body 100. Through this design, it is convenient to rotate the inner rollers of the coarse crushing roller group 210, the left fine roller group 220 and the right fine roller group 230 in opposite directions, making the crushing operation more convenient.

[0029] Furthermore, the rear end of the upper shaft 214 is connected with a servo motor 240 through a coupling, and the bottom support of the servo motor 240 is equipped with a support frame 241, and the support frame 241 is installed on the outer wall of the rear side of the mechanism body 100. The rear end of the upper shaft 1 213 is fixed with a transmission pulley 242, and the outer wall of the transmission pulley 242 is equipped with a transmission main belt 243, and the inside of the transmission main belt 243 is also equipped with a driven wheel 1 244 and a driven wheel 2 245. The driven wheel 1 244 is fixed to the rear end of the right shaft 231, and the driven wheel 2 245 is fixed to the rear of the left shaft 221. At the end, the outer wall of the driving pulley 242, the outer wall of the driven wheel 1 244, the outer wall of the driven wheel 245 and the inner wall of the main driving belt 243 are all fixed with teeth 246 that mesh with each other, and the outer diameter of the driving pulley 242 is larger than the outer diameters of the driven wheel 1 244 and the driven wheel 2 245. The outer cover of the main driving belt 243 is provided with a back cover frame 247, and the back cover frame 247 is assembled on the outer wall of the rear side of the mechanism body 100. Through this design, it is convenient to drive the coarse crushing roller group 210, and at the same time, it synchronously drives the rotation of the right fine roller group 230 and the left fine roller group 220, making the crushing operation more convenient;

[0030] Further, the upper transmission gear 215 is covered with a front cover frame 250, the left transmission gear 222 and the right transmission gear 232 are covered with a lower cover frame 260, and the lower cover frame 260 is provided with maintenance inner chambers 261 corresponding to the left transmission gear 222 and the right transmission gear 232, respectively. The front cover frame 250 and the lower cover frame 260 are assembled on the front side wall of the mechanism body 100 by bolts, and the front cover frame 250 and the lower cover frame 260 are covered with transparent covers 251. Through this design, it is convenient to maintain the cover on the front side of the mechanism body 100, and avoid harm to surrounding personnel when the upper transmission gear 215, the left transmission gear 222 and the right transmission gear 232 rotate;

[0031] Further, a diverter guide plate 270 is arranged directly below the crushing assembly 200, and the front and rear ends of the diverter guide plate 270 are assembled on the front and rear inner walls of the mechanism body 100, and side guide plates 271 are arranged on both sides below the crushing assembly 200, and the back of the side guide plate 271 is supported by a support back frame 272, the diverter guide plate 270 is in the shape of a mountain peak, and the lower end of the diverter guide plate 270 and the lower end of the side guide plate 271 are inclined toward the center above the left fine roller group 220 and the right fine roller group 230. Through this design, it is convenient to divert and guide the material crushed by the coarse crushing roller group 210 inside the crushing chamber 110, making the subsequent operation more convenient;

[0032] Furthermore, a transverse push rod 330 is installed at the lower back of the guide baffle 300, and a mounting slide frame 340 is sleeved at the front and rear ends of the transverse push rod 330. Two sets of mounting slide frames 340 are mounted on the front and rear side walls of the mechanism body 100. An inner slide groove 341 corresponding to the transverse push rod 330 is opened inside the mounting slide frame 340, and a sealing curtain 342 is fixed to the inner wall of the inner slide groove 341. Push-pull blocks 350 are fixed to the front and rear outer ends of the transverse push rod 330, and the push-pull blocks 350 are fixed to the upper and lower sides of the push-pull blocks 350. Limiting screws 360 and limiting slides 351 are inserted through both ends, and the limiting screws 360 and limiting slides 351 are supported and assembled by mounting seats 361 respectively, and fastening nuts 362 are arranged on both sides of the push-pull block 350, and two sets of fastening nuts 362 are respectively threadedly sleeved on the surface of the limiting screws 360. Through this design, it is convenient to assist in pushing and resisting the material guide baffle 300, to adjust the relevant inclination of the material guide baffle 300, and to guide the input materials;

[0033] Furthermore, the back of the assembly seat 320 is assembled on the left and right side walls of the mechanism body 100 by means of assembly bolts 321, and an adjustment groove 322 corresponding to the material guide baffle 300 is opened at the lower part of the assembly seat 320, and a torsion spring 311 is sleeved on the surface of the hinge shaft 310, and one end of the torsion spring 311 is clamped on the top wall of the adjustment groove 322, and the other end of the torsion spring 311 is clamped on the upper wall of the material guide baffle 300. Through this design, it is convenient to assist the upper part of the material guide baffle 300 with resistance, and it will not flip up accidentally, so it is convenient to cooperate with the transverse push rod 330 to adjust the angle of the material guide baffle 300.

[0034] Working principle: When assembling and using, the mechanism body 100 is assembled with the relevant mechanisms, such as the loading and unloading mechanisms, under the cooperation of the side frame 120 and the through hole 130, so as to facilitate the subsequent crushing operation. According to the input material and the crushing efficiency, the inclination of the material guide baffle 300 is adjusted, and the horizontal push rod 330 is driven to move by pushing and pulling the push-pull block 350, so that the horizontal push rod 330 slides inside the assembly slide frame 340. When sliding, the limiting slide 351 and the inner slide groove 341 facilitate stable sliding. At the same time, with the cooperation of the sealing curtain 342, it is convenient to relatively block the inside of the inner slide groove 341 to avoid material leakage. After adjusting to the appropriate position, by tightening the fastening nut 362, it is convenient to limit and fasten the limiting screw 360 and the push-pull block 350. The lateral top rod 330 is convenient for stably supporting the material guide baffle 300, thereby realizing the space change at the bottom of the two groups of material guide baffles 300, which is convenient for controlling and guiding the feed. Then the material passes through the coarse crushing roller group 210, and is preliminarily filtered under the crushing of the coarse roller 1 211 and the coarse roller 2 212. At the same time, under the assembly of the main transmission belt 243, it is convenient to synchronously drive the left fine roller group 220 and the right fine roller group 230 to crush the crushed material again, so that the crushing effect is better. At the same time, under the setting that the outer diameter of the transmission pulley 242 is larger than the outer diameter of the driven wheel 1 244 and the driven wheel 2 245, the synchronous speed of the left fine roller group 220 and the right fine roller group 230 is faster than that of the coarse crushing roller group 210, which will not cause internal backlog, making the crushing operation more convenient, and the operation ends here.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A rotary crushing device of a crusher, comprising a mechanism body (100), a crushing chamber (110) being provided inside the mechanism body (100), and the mechanism body (100) and the crushing chamber (110) being of equal width from top to bottom, side frames (120) being fixedly provided at upper and lower ends of the mechanism body (100), and a through hole (130) being provided inside the side frame (120); Features: A crushing assembly (200) is arranged inside the mechanism body (100), and the crushing assembly (200) comprises a coarse crushing roller group (210), a left fine roller group (220) and a right fine roller group (230). The coarse crushing roller group (210) is located in the middle of the crushing chamber (110), the left fine roller group (220) and the right fine roller group (230) are located below the coarse crushing roller group (210), and the left fine roller group (220) is located on the left side of the right fine roller group (230). A left shaft (221) and a right shaft (231) are inserted and fixed inside the left fine roller group (220) and the right fine roller group (230), respectively. The two groups of left shafts (221) and right shafts (231) are arranged on the left side of the right fine roller group (230). The front and rear ends of the coarse crushing roller group (210) are inserted and assembled on the front and rear side walls of the mechanism body (100) through bearings and extend to the outside. The coarse crushing roller group (210) comprises a coarse roller one (211) and a coarse roller two (212), and the coarse roller one (211) and the coarse roller two (212) are also inserted and assembled on the front and rear side walls of the mechanism body (100) through an upper shaft one (213) and an upper shaft two (214), respectively. A material guide baffle (300) is arranged on the upper part of the crushing chamber (110). The upper ends of the two groups of the material guide baffles (300) are hinged with an assembly seat (320) through a hinge shaft (310), and the assembly seat (320) is fixed to the upper inner wall of the mechanism body (100).

2. The rotary crushing device of a crusher according to claim 1, characterized in that: The front ends of the upper shaft 1 (213) and the upper shaft 2 (214) are both equipped with upper transmission gears (215), and the two sets of upper transmission gears (215) are meshed with each other. The front ends of the left shaft (221) are also equipped with left transmission gears (222), and the two sets of left transmission gears (222) are meshed with each other. The front ends of the right shaft (231) are also equipped with right transmission gears (232) that are meshed with each other. The upper transmission gear (215), the left transmission gear (222) and the right transmission gear (232) are all located on the front side of the mechanism body (100).

3. The rotary crushing device of a crusher according to claim 1, characterized in that: The rear end of the upper shaft 2 (214) is connected to a servo motor (240) via a coupling. The bottom support of the servo motor (240) is equipped with a support frame (241). The support frame (241) is mounted on the rear outer wall of the mechanism body (100). The rear end of the upper shaft 1 (213) is fixed with a transmission pulley (242). The outer wall of the transmission pulley (242) is sleeved with a transmission main belt (243). The transmission main belt (243) is also equipped with a driven wheel 1 (244) and a driven wheel 2 (245) inside. The driven wheel 1 (244) The driven wheel 2 (245) is fixed to the rear end of the right shaft (231), and the driven wheel 2 (245) is fixed to the rear end of the left shaft (221). The outer wall of the transmission pulley (242), the outer wall of the driven wheel 1 (244), the outer wall of the driven wheel 2 (245), and the inner wall of the main transmission belt (243) are all fixedly provided with teeth (246) that mesh with each other, and the outer diameter of the transmission pulley (242) is larger than the outer diameters of the driven wheel 1 (244) and the driven wheel 2 (245). The outer cover of the main transmission belt (243) is provided with a back cover frame (247), and the back cover frame (247) is assembled on the outer wall of the rear side of the mechanism body (100).

4. The rotary crushing device of a crusher according to claim 2, characterized in that: The upper transmission gear (215) is covered externally with a front cover frame (250), the left transmission gear (222) and the right transmission gear (232) are covered externally with a lower cover frame (260), and the lower cover frame (260) is provided with maintenance inner cavities (261) corresponding to the left transmission gear (222) and the right transmission gear (232) respectively inside. The front cover frame (250) and the lower cover frame (260) are assembled on the front side wall of the mechanism body (100) by bolts, and the front cover frame (250) and the lower cover frame (260) are both covered externally with transparent covers (251).

5. The rotary crushing device of a crusher according to claim 1, characterized in that: A flow diversion guide plate (270) is arranged directly below the crushing assembly (200), and the front and rear ends of the flow diversion guide plate (270) are mounted on the front and rear inner walls of the mechanism body (100). Side guide plates (271) are arranged on both sides below the crushing assembly (200), and the back of the side guide plate (271) is supported by a support back frame (272). The flow diversion guide plate (270) is in the shape of a mountain peak, and the lower end of the flow diversion guide plate (270) and the lower end of the side guide plate (271) are both inclined toward the center above the left fine roller group (220) and the right fine roller group (230).

6. The rotary crushing device of a crusher according to claim 1, characterized in that: A transverse push rod (330) is mounted below the back of the guide baffle (300), and assembly slide frames (340) are sleeved on the front and rear ends of the transverse push rod (330). Two sets of assembly slide frames (340) are mounted on the front and rear side walls of the mechanism body (100). An inner slide groove (341) corresponding to the transverse push rod (330) is formed inside the assembly slide frame (340), and a sealing curtain (342) is fixed to the inner wall of the inner slide groove (341). A push-pull block (350) is fixed to the front and rear outer ends of the rod (330), and a limit screw (360) and a limit slide (351) are inserted through the upper and lower ends of the push-pull block (350), and the limit screw (360) and the limit slide (351) are respectively supported and assembled through the mounting seat (361), and fastening nuts (362) are arranged on both sides of the push-pull block (350), and two groups of the fastening nuts (362) are respectively threadedly sleeved on the surface of the limit screw (360).

7. The rotary crushing device of a crusher according to claim 1, characterized in that: The back of the assembly seat (320) is inserted and assembled on the left and right side walls of the mechanism body (100) through assembly bolts (321), and the lower part of the assembly seat (320) is provided with an adjustment groove (322) corresponding to the material guide baffle (300), and the surface of the hinge shaft (310) is sleeved with a torsion spring (311), one end of the torsion spring (311) is clamped on the top wall of the adjustment groove (322), and the other end of the torsion spring (311) is clamped on the upper wall of the material guide baffle (300).

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