A curved block crusher

Abstract

The utility model belongs to the technical field of curved block processing, specifically relates to a curved block crusher. It includes the chassis and at least two upper and lower stacked crushing devices arranged on the chassis, and the inlet and outlet of adjacent crushing devices are oppositely arranged. The crushing device includes a box body, two parallel crushing rollers rotatingly connected in the box body, and a driving device. The driving devices in the two adjacent crushing devices are respectively in transmission connection with one end of two crushing rollers, and the other end of the two crushing rollers is respectively in differential transmission connection with one end of the other two crushing rollers. The two driving devices rotate at different speeds to drive the four crushing rollers to rotate at different speeds. The utility model is used to solve the problem of poor crushing effect of conventional curved block crushers. By arranging multiple crushing devices, the curved blocks are crushed in multiple layers, and gradually crushed to the required particle size. The crushing rollers in each crushing device rotate at different speeds, which can achieve good crushing effect.

Description

Technical Field

[0001] This utility model belongs to the field of curved block processing technology, specifically relating to a curved block crusher. Background Technology

[0002] The koji block crusher is a core piece of equipment in the brewing industry for processing mature fermented koji blocks. Its performance directly supports the quality of koji powder preparation and the smooth operation of subsequent brewing processes. The equipment's core function is to crush mature fermented koji blocks, processing them into koji powder with a particle size that meets the requirements of brewing processes, thus providing crucial raw material pretreatment support for the brewing process.

[0003] Currently, most block crushers adopt a dual-roller differential speed operation structure. By enhancing shearing and compression, the rolls are typically toothed crushing rolls. The crushers utilize the conical tips on the two rolls to crush the blocks. Their operating speed is generally around ten revolutions per minute; if it is too high, blockage will occur, thus limiting output. Current production often requires larger-capacity coarse crushing equipment. Coarse crushing reduces the particle size, lessening the burden on subsequent fine crushing equipment. However, the actual crushing effect in practice is not ideal. Utility Model Content

[0004] To address the shortcomings of existing technologies, a curved block crusher is provided to solve the problem of poor crushing effect of conventional curved block crushers.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a block crusher, which includes a base frame and at least two crushing devices stacked on top of each other on the base frame, with the inlet and outlet of adjacent crushing devices being arranged opposite to each other; The crushing device includes: a housing, two parallel crushing rollers rotatably connected in the housing, and a driving device. The driving devices of two adjacent crushing devices are respectively connected to one end of two of the crushing rollers, and the other ends of the two crushing rollers are respectively connected to one end of the remaining two crushing rollers via differential transmission. The two drive devices rotate at different speeds to drive the four crushing rollers to rotate at different speeds in pairs.

[0006] Compared with existing technologies, the above technical solutions have the following beneficial effects: By setting up a multi-layer crushing device, the curved blocks are crushed into the required particle size through multiple layers of crushing. The crushing rollers in each layer of the crushing device achieve differential rotation. The crushing effect is better by utilizing the differential rotation between the two crushing rollers in each layer. Moreover, the crushing rollers in different layers also crush at different speeds, which can achieve a better crushing effect.

[0007] Based on the above technical solution, the embodiments of this application can be further improved as follows: In one embodiment, the crushing roller includes a roller body and a plurality of blades, the roller body being rotatably connected to the housing, and the blades being spirally spaced on the roller body.

[0008] The blades are arranged in a spiral on the roller body. The spiral blades can gradually squeeze the molten material when crushing it, resulting in a good crushing and biting effect.

[0009] In one embodiment, the blade thickness of the upper crushing roller is greater than the blade thickness of the lower crushing roller.

[0010] The blades on the upper layer of the crushing roller are set to be thicker, so that the newly entered curved block can be crushed for the first time. The thicker blades are more likely to cut and crush the entire curved block.

[0011] In one embodiment, the cutting edge thickness of the upper blade is less than that of the lower blade, and the cutting edge of the blade is provided with a serrated structure.

[0012] Setting cutting edges and serrations on the blades makes it easier to break up the curved blocks. The thinner cutting edge of the upper crushing roller makes it easier to cut through the curved blocks, while the thicker cutting edge at the bottom makes it easier to break up the blocky curved blocks.

[0013] In one embodiment, the spacing between adjacent blades in the upper crushing roller is greater than the spacing between adjacent blades in the lower crushing roller.

[0014] The blade spacing is set to narrow from top to bottom, so that the particle size can be gradually reduced to meet the usage requirements.

[0015] In one embodiment, a plurality of partitions are spaced apart along the axial direction of the crushing roller in the housing, the partitions being located in the gap between adjacent blades, and the top edge of the partitions being serrated.

[0016] The partitions can support large curved blocks, preventing them from falling directly through the blade gaps to the bottom. The blocks can then be further cut into smaller pieces by the serrations on the partitions and the pressure from the blades.

[0017] In one embodiment, the driving device includes: A base, on which a drive motor is mounted, and one end of the base near the crushing roller is rotatably connected to the base frame; A tensioning mechanism is rotatably connected to the base frame, and the working end of the tensioning mechanism is rotatably connected to the end of the base away from the crushing roller.

[0018] The tensioning mechanism provides a certain rotation angle for the motor on the base, thereby reducing slippage when the drive motor outputs. At the same time, the weight of the drive motor presses down on the base, tightening the belt at the output end of the drive motor to ensure a taut output. In addition, when encountering large, unbreakable blocks, the drive motor is less likely to jam and be damaged due to the belt being too tight.

[0019] In one embodiment, the tensioning mechanism includes: A rod on which an elastic element is sleeved, and positioning nuts located at both ends of the elastic element are screwed onto the rod; Two positioning seats are provided, and a rotating shaft is rotatably connected to each positioning seat. One of the rotating shafts is connected to one end of the rod, and the other rotating shaft is sleeved between the elastic element and the positioning nut to form an active end.

[0020] The elastic element on the rod can provide a certain amount of elasticity to press down and tighten the drive motor, and the positioning nuts at both ends can prevent the base from rotating too much.

[0021] In one embodiment, the two crushing rollers connected to the drive device are respectively provided with a first pulley at the other end away from the drive device, and one end of the other two crushing rollers is connected to a second pulley with a diameter different from the first pulley. A transmission belt is connected between the second pulley and the first pulley.

[0022] By setting first and second pulleys of different sizes, differential transmission can be achieved between two crushing rollers connected by a transmission belt.

[0023] In one embodiment, a tensioning arm is further included, which is rotatably connected to the housing. One end of the tensioning arm is connected to the working end of the tensioning mechanism, and the other end is rotatably connected to a tensioning wheel that abuts against the transmission belt.

[0024] The tensioning pulley on the tensioning arm can be used to adjust the tension of the drive belt. At the same time, the tensioning mechanism can provide elasticity within a certain angle range to improve the tensioning effect. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 2 for Figure 1 A schematic diagram of the structure after removing the protective cover.

[0028] Figure 3 for Figure 2 A front view structural diagram of the tensioning arm.

[0029] Figure 4 for Figure 1 A magnified structural diagram of point A in the middle.

[0030] Figure 5 This is a schematic diagram of the upper crushing roller in this utility model.

[0031] Figure 6 This is a schematic diagram of the structure of the lower crushing roller in this utility model.

[0032] Figure label: 1. Base frame; 2. Crushing device; 3. Tensioning mechanism; 4. First pulley; 5. Second pulley; 6. Transmission belt; 7. Tensioning support arm; 8. Tensioning wheel; 9. Protective cover; 201. Box body; 202. Crushing roller; 203. Drive unit; 204. Partition plate; 2021, Roller body; 2022, Blade; 2023, Cutting edge; 2031, base; 2032, drive motor; 301. Rod; 302. Elastic element; 303. Locating nut; 304. Locating seat; 305. Rotating shaft; Detailed Implementation The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0033] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figure 1-6 As shown, the present invention provides a block crusher, which includes a base frame 1 and at least two crushing devices 2 stacked on the base frame 1. The inlets and outlets of adjacent crushing devices 2 are arranged opposite each other. The bottom of the crushing device 2 is the outlet and the top is the inlet. After stacking, the outlet of the upper crushing device 2 corresponds to the inlet of the lower crushing device 2.

[0037] The crushing device 2 includes a housing 201, two parallel crushing rollers 202 rotatably connected within the housing 201, and a drive device 203. The drive device 203 is located outside the housing 201 and drives the crushing rollers 202 to rotate. The drive devices 203 in two adjacent crushing devices 2 are respectively connected to one end of two of the crushing rollers 202, and the other ends of the two crushing rollers 202 are respectively connected to one end of the remaining two crushing rollers 202 via differential transmission. Specifically, taking two adjacent crushing devices 2 as an example, the two drive devices 203 located on both sides of the crushing device 2 are respectively connected to the ends of the two upper crushing rollers 202, driving the two crushing rollers 202 to rotate in opposite directions. Then, the other ends of the two upper crushing rollers 202 that are not connected to the drive devices 203 are respectively connected to one end of the two lower crushing rollers 202 by differential transmission. Specifically, the upper left crushing roller 202 is connected to the lower left crushing roller 202 by differential transmission, and the upper right crushing roller 202 is connected to the lower right crushing roller 202 by differential transmission, so that the four crushing rollers 202 are driven to rotate together by the two drive devices 203.

[0038] The two drive devices 203 rotate at different speeds to drive the four crushing rollers 202 to rotate at different speeds in pairs. Because the two drive devices 203 rotate at different speeds, the two upper crushing rollers 202 rotate at different speeds, and the two upper and lower crushing rollers 202 are also connected by differential transmission. Therefore, all four crushing rollers 202 rotate at different speeds. Specifically, the differential speed between crushing rollers 202 in the same layer can be controlled at 50 rpm ± 5 rpm, and the differential speed between upper and lower crushing rollers 202 can be controlled at 100 rpm ± 5 rpm. For example, the speeds of the two upper crushing rollers 202 are 200 rpm and 150 rpm, and the speeds of the two lower crushing rollers 202 are 350 rpm and 300 rpm, respectively.

[0039] Specifically, such as Figure 2 As shown, the differential transmission connection between the upper and lower crushing rollers 202 can be achieved through two pulleys and a transmission belt 6. The two crushing rollers 202 connected to the drive device 203 are respectively provided with a first pulley 4 at the other end away from the drive device 203. The other two crushing rollers 202 are connected to a second pulley 5 with a diameter different from the first pulley 4 at one end. The first pulley 4 and the second pulley 5 are located on the same side of the housing 201, and the diameter of the upper pulley is larger than the diameter of the lower pulley. A transmission belt 6 is connected between the second pulley 5 and the first pulley 4.

[0040] By setting different sizes of first pulley 4 and second pulley 5, the two crushing rollers 202 connected by the transmission belt 6 can be connected by differential transmission.

[0041] In this embodiment, by setting up a multi-layer crushing device 2, the curved block is crushed into the required particle size through multiple layers of crushing. The crushing rollers 202 in each layer of the crushing device 2 achieve differential rotation. The crushing effect is better by utilizing the differential rotation between the two crushing rollers 202 in each layer. Moreover, the crushing rollers 202 in different layers also crush at different speeds, which can achieve a better crushing effect.

[0042] In this embodiment, the crushing roller 202 includes a roller body 2021 and a plurality of blades 2022. The blades 2022 are spaced apart on the roller body 2021. The roller body 2021 is rotatably connected to the housing 201. Both ends of the roller body 2021 are rotatably connected to the housing 201 through bearings and bearing seats. The blades 2022 are spirally spaced on the roller body 2021, that is, adjacent blades 2022 are circumferentially deflected to form a spiral spacing. The spiral arrangement of the blades 2022 on the roller body 2021 can gradually squeeze the crushed blocks, resulting in a good crushing and biting effect.

[0043] like Figure 5 , 6As shown, during the process of the curved block entering from the upper crushing device 2 and falling into the lower crushing device 2, the curved block will be gradually broken into smaller pieces from a large piece. Therefore, the thickness of the blade 2022 of the upper crushing roller 202 is greater than the thickness of the blade 2022 of the lower crushing roller 202. Setting the blade 2022 of the upper layer of the crushing roller 202 to be thicker makes it easier to cut and break a whole curved block for the initial crushing of the newly entered curved block.

[0044] To facilitate the crushing of curved blocks, the cutting edge 2023 of the upper blade 2022 is thinner than that of the lower blade 2022. The cutting edge 2023 of the blade 2022 is provided with a serrated structure. The cutting edge 2023 and serrations on the blade 2022 make it easier to crush curved blocks. Moreover, the cutting edge 2023 of the upper crushing roller 202 is thin, and the blade 2022 of the upper crushing roller 202 is thicker, which makes it easier to cut the curved blocks and less likely to damage the blade 2022. The thicker cutting edge 2023 at the bottom makes it easier to crush blocky curved blocks.

[0045] The spacing between adjacent blades 2022 in the upper crushing roller 202 is greater than the spacing between adjacent blades 2022 in the lower crushing roller 202. The spacing between the blades 2022 is set to narrow from top to bottom, so that the particle size of the crushed material can be gradually reduced to meet the usage requirements. In this way, the arrangement of the multi-layer crushing device 2 can crush the particle size of the curved block to a suitable size.

[0046] A plurality of partitions 204 are spaced apart along the axial direction of the crushing rollers 202 in the housing 201. The two ends of each partition 204 are fixedly connected to the housing 201, and the partitions 204 are located in the gaps between adjacent blades 2022. By filling the gaps between the corresponding crushing rollers 202, the partitions 204 can better support the curved blocks located between the blades 2022. The top edge of each partition 204 is serrated. The curved blocks supported by the partitions 204 are prevented from falling directly through the gaps between the blades 2022 and can be further cut into smaller pieces by the serrations on the partitions 204 in conjunction with the pressure from the blades 2022. The serrations at the top of the partitions 204 allow for better further cutting of the curved blocks.

[0047] In this embodiment, the driving device 203 includes: a base 2031 and a tensioning mechanism 3.

[0048] A drive motor 2032 is installed on the base 2031. One end of the base 2031 near the crushing roller 202 is rotatably connected to the base frame 1, and the other end of the base 2031 is suspended, so that the base 2031 can rotate up and down with the rotatable connection. The tensioning mechanism 3 is rotatably connected to the base frame 1, and the working end of the tensioning mechanism 3 is rotatably connected to the end of the base 2031 away from the crushing roller 202.

[0049] The output end of the drive motor 2032 is connected to the end of the crushing roller 202 via a belt.

[0050] The tensioning mechanism 3 can provide a certain rotation angle for the motor on the base 2031, thereby reducing the slippage that occurs when the drive motor 2032 outputs. At the same time, the weight of the drive motor 2032 presses down the base 2031, tightening the belt at the output end of the drive motor 2032 to ensure a tight output. Also, when encountering large, unbreakable blocks, the drive motor 2032 is less likely to jam and be damaged due to the belt being too tight.

[0051] like Figure 4 As shown, specifically, the tensioning mechanism 3 includes: a rod 301, an elastic element 302, two positioning nuts 303, and two positioning seats 304.

[0052] An elastic element 302 is sleeved on the rod 301. Positioning nuts 303 located at both ends of the elastic element 302 are screwed onto the rod 301. The elastic element 302 is a spring, and the rod 301 is a screw. Two positioning nuts 303 located at both ends of the spring are screwed onto the rod 301. The spring is fixed and limited by the positioning nuts 303. A rotating shaft 305 is rotatably connected to the positioning seat 304. One rotating shaft 305 of the two positioning seats 304 is connected to one end of the rod 301, and the rotating shaft 305 of the other positioning seat 304 is sleeved between the elastic element 302 and the positioning nuts 303 to form an action end. The elastic element 302 can push the positioning seat 304 connected to the base 2031 through elastic force, thereby driving the drive motor 2032 to be forced in the required direction.

[0053] The elastic element 302 on the rod 301 can provide a certain elasticity to press down and tighten the drive motor 2032, and the positioning nuts 303 at both ends can prevent the base 2031 from rotating too much.

[0054] like Figure 3 As shown, to achieve tensioning of the transmission belt 6 connecting the upper and lower layers, a tensioning support arm 7 is also included. The tensioning support arm 7 is rotatably connected to the housing 201, and the middle part of the tensioning support arm 7 is rotatably connected to the housing 201. One end of the tensioning support arm 7 is connected to the working end of the tensioning mechanism 3, and the other end is rotatably connected to a tensioning wheel 8 that abuts against the transmission belt 6. The elastic force provided by the elastic element 302 in the tensioning mechanism 3 pushes the other end of the tensioning support arm 7 to abut against the transmission belt 6. The tensioning wheel 8 on the tensioning support arm 7 can be used to adjust the tension of the transmission belt 6. At the same time, the tensioning mechanism 3 can provide elastic force within a certain angle range to improve the tensioning effect. In addition, the elastic force of the elastic element 302 can be controlled by adjusting the positioning nut 303, thereby adjusting and controlling the tensioning force of the tensioning support arm 7 abutting against the transmission belt 6.

[0055] To protect the belt and transmission belt 6 on the output end of the drive device 203, a protective cover 9 is provided. The protective cover 9 covers the output end of the drive device 203 and the end of the crushing roller 202 to protect the belt and transmission belt 6.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A block crusher, characterized in that, It includes a base frame and at least two crushing devices stacked vertically on the base frame, with the inlets and outlets of adjacent crushing devices being arranged opposite each other; The crushing device includes: a housing, two parallel crushing rollers rotatably connected in the housing, and a driving device. The driving devices of two adjacent crushing devices are respectively connected to one end of two of the crushing rollers, and the other ends of the two crushing rollers are respectively connected to one end of the remaining two crushing rollers via differential transmission. The two drive devices rotate at different speeds to drive the four crushing rollers to rotate at different speeds in pairs.

2. The block crusher according to claim 1, characterized in that, The crushing roller includes a roller body and several blades. The roller body is rotatably connected to the housing, and the blades are spirally spaced on the roller body.

3. The block crusher according to claim 2, characterized in that, The blade thickness of the upper crushing roller is greater than that of the blade thickness of the lower crushing roller.

4. The block crusher according to claim 3, characterized in that, The blade of the upper layer has a smaller cutting edge thickness than the blade of the lower layer, and the cutting edge of the blade is provided with a serrated structure.

5. The block crusher according to claim 3, characterized in that, The spacing between adjacent blades in the upper crushing roller is greater than the spacing between adjacent blades in the lower crushing roller.

6. The block crusher according to claim 2, characterized in that, The housing is provided with several partitions spaced apart along the axial direction of the crushing roller. The partitions are located in the gaps between adjacent blades, and the top edge of the partitions is serrated.

7. The block crusher according to claim 1, characterized in that, The driving device includes: A base, on which a drive motor is mounted, and one end of the base near the crushing roller is rotatably connected to the base frame; A tensioning mechanism is rotatably connected to the base frame, and the working end of the tensioning mechanism is rotatably connected to the end of the base away from the crushing roller.

8. The block crusher according to claim 7, characterized in that, The tensioning mechanism includes: A rod on which an elastic element is sleeved, and positioning nuts located at both ends of the elastic element are screwed onto the rod; Two positioning seats are provided, and a rotating shaft is rotatably connected to each positioning seat. One of the rotating shafts is connected to one end of the rod, and the other rotating shaft is sleeved between the elastic element and the positioning nut to form an active end.

9. The block crusher according to claim 8, characterized in that, The two crushing rollers connected to the drive device are respectively provided with a first pulley at the other end away from the drive device, and one end of the other two crushing rollers is connected to a second pulley with a diameter different from the first pulley. A transmission belt is connected between the second pulley and the first pulley.

10. The block crusher according to claim 9, characterized in that, It also includes a tensioning arm, which is rotatably connected to the housing. One end of the tensioning arm is connected to the working end of the tensioning mechanism, and the other end is rotatably connected to a tensioning wheel that abuts against the transmission belt.

Images