Corn residue breaking and crushing machine

Abstract

The invention provides a corn dreg breaking and crushing machine. The corn dreg breaking and crushing machine comprises a machine body, two grinding rollers and a crushing assembly, wherein the machine body is provided with a material grinding cavity and a smashing cavity which are arranged up and down, a feeding port is formed in the top of the material grinding cavity, a discharging port is formed in the bottom of the smashing cavity, and the top of the smashing cavity communicates with the bottom of the material grinding cavity; the two material grinding rollers are horizontally arranged in the material grinding cavity in pairs, a material grinding gap is formed between the two material grinding rollers, and the two material grinding rollers are used for synchronously and reversely rotating so as to fracture endosperm of corn kernels falling into the material grinding gap; and the crushing assembly is arranged in the crushing cavity and is used for crushing the fractured endosperm and then discharging the crushed endosperm and the fallen corn germs through the discharge port. According to the corn dreg breaking and crushing machine, through the dual effects of rolling and crushing, the crushing and crushing uniformity of endosperm can be improved, the integrity of corn embryos is guaranteed, corn kernels continuously fall into the crushing cavity through the material grinding gaps, and the corn crushing uniformity can be further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of grain processing, and in particular relates to a corn grits crusher. Background Art

[0002] At present, corn crushers basically use hammer-type rollers to impact and cut corn particles during rotation. By adjusting the speed of the rollers and the diameter of the sieve holes, corn grits or corn flour of different particle sizes can be obtained, which is more suitable for the field of corn rough processing. For deep processing of corn, it is necessary to separate the corn germ and endosperm after breaking and crushing the corn, and then grind the separated pure endosperm to obtain low-fat corn flour, and the corn germ is used for other purposes. When using a hammer-type mill to break and crush corn, if the speed is too low, there will be problems of poor crushing uniformity and a large number of unbroken corn kernels. If the speed is too high, a large number of corn germs will be crushed, and the crushed corn germs are difficult to completely separate from the endosperm, which will result in a high fat content in the corn flour, which cannot meet the current market demand for low-fat corn flour and the process requirements for using low-fat corn flour to make sugar. Summary of the invention

[0003] The embodiment of the present invention provides a corn grits crusher, aiming to improve the uniformity of corn grits crushing and the integrity of corn embryos.

[0004] To achieve the above object, the technical solution adopted by the present invention is: to provide a corn grits crusher, comprising: The machine body has a material grinding chamber and a crushing chamber arranged up and down, a material feeding port is provided at the top of the material grinding chamber, a material discharging port is provided at the bottom of the crushing chamber, and the top of the crushing chamber is connected with the bottom of the material grinding chamber; Two grinding rollers are arranged horizontally in pairs in the grinding chamber, with a grinding gap between the two grinding rollers, and the two grinding rollers are used to rotate synchronously in opposite directions to crush the endosperm of corn kernels falling into the grinding gap; The crushing assembly is arranged in the crushing chamber and is used to crush the fracturing endosperm and discharge it together with the detached corn embryo through the discharge port.

[0005] In a possible implementation, pressure regulating mechanisms are respectively connected between the two ends of the two grinding rollers, and the pressure regulating mechanisms are used to adjust the grinding gap and the grinding pressure of the two grinding rollers on the corn kernels.

[0006] In some embodiments, the pressure regulating mechanism comprises: A first shaft seat is fixedly connected to the machine body and rotatably cooperates with the end of one of the grinding rollers; A second shaft seat is slidably or rotatably connected to the machine body and rotatably matched with the end of another material grinding roller; A first elastic member is connected between the first shaft seat and the second shaft seat in a compressed state; The traction component has one end connected to the first axle seat and the other end connected to the second axle seat, and is used for traction of the second axle seat and adjustment of the grinding gap and grinding force.

[0007] Exemplarily, the traction assembly includes: A double-ended tie rod, one end of which passes through the first shaft seat and is provided with a first external thread section, and the other end of which passes through the second shaft seat and is provided with a second external thread section; An adjusting lock nut, threadedly connected to the first external thread section and abutting against the first shaft seat; The pressure regulating head is threadedly connected to the second external thread section and abuts against the second shaft seat; the pressure regulating head has an elastic tensioning force acting on the second shaft seat based on the second elastic member.

[0008] For example, the pressure regulator includes: A sleeve head is slidably sleeved on the double-headed pull rod and abuts against a side of the second shaft seat away from the first shaft seat, and a threaded sleeve is arranged inside the sleeve head; The pressure head has a stop step at one end, and the other end is inserted into the sleeve and threadedly matched with the screw sleeve, and the end of the pressure head inserted into the screw sleeve is provided with an internal thread hole, and the internal thread hole is threadedly matched with the second external thread section; Wherein, the second elastic member is sleeved on the pressure head and is located between the stop step and the sleeve head, and is used for elastically pushing the stop step to form an elastic tensioning force on the second shaft seat.

[0009] In a possible implementation, the lower end of the second shaft seat is hinged to the machine body, and the upper end is provided with a second connecting ear suitable for the double-headed pull rod to pass through, and the pressure regulating head abuts against the second connecting ear; A swing arm is hinged on the top of the first shaft seat, a first connecting ear suitable for the double-headed pull rod to pass through is provided at the upper end of the swing arm, and the adjustment lock nut abuts against the side of the first connecting ear away from the second shaft seat; a connecting head is provided at the lower end of the swing arm; A fixing seat is arranged on the machine body, and the fixing seat is horizontally aligned with the connecting head; an adjusting rod is passed through the fixing seat, and the adjusting rod is rotationally matched with the fixing seat, and one end of the adjusting rod is threadedly connected with the connecting head, and the other end passes through the machine body and is provided with an operating panel.

[0010] In some embodiments, a first rotating pin is provided in the fixing seat, a second rotating pin is provided in the connecting head, the adjusting rod radially passes through the first rotating pin and the second rotating pin in sequence, the adjusting rod is rotationally matched with the first rotating pin, and is threadably matched with the second rotating pin.

[0011] Exemplarily, the pulverizing assembly includes: The crushing roller is rotatably connected to the crushing chamber and aligned with the grinding gap up and down. The crushing roller has multiple groups of hammers spaced apart along its axial direction. The screen piece is arranged in the grinding chamber around the crushing roller to form a screen chamber. The top of the screen chamber is open and forms a material drop channel with the bottom of the grinding chamber. A material discharge channel connected with the discharge port is formed between the screen piece and the wall of the grinding chamber.

[0012] For example, serrated plates are provided on both sides of the top of the screen cavity, a guide plate is rotatably provided at the bottom of the material drop channel, the rotating shaft of the guide plate is aligned with the crushing roller up and down, and the top of the guide plate abuts against the inner wall of one side of the material drop channel.

[0013] In some embodiments, a first driving member and a second driving member are provided on the machine body; wherein the first driving member is transmission connected to one of the grinding rollers, and is used to drive the grinding roller to rotate at a linear speed of 0.5~2m / s; the second driving member is transmission connected to the crushing assembly, and is used to drive the crushing assembly to rotate at a linear speed of 13~19m / s.

[0014] The beneficial effect of the corn grits crusher provided by the present invention is that compared with the prior art, the corn grits crusher of the present invention has a grinding chamber on the upper part of the machine body and a crushing chamber on the lower part. The corn kernels after tempering enter the grinding chamber, and a grinding gap is formed between two synchronously counter-rotating grinding rollers. In the process of the corn kernels passing through the grinding gap, the endosperm is fractured by the two grinding rollers. After the endosperm is fractured, the corn kernels fall into the crushing chamber, and the crushing component impacts and cuts the fractured endosperm to fracture the endosperm and make the corn embryo fall off completely from the endosperm. Therefore, on the one hand, the crushing component can be set to a lower linear speed to achieve endosperm crushing, thereby reducing the probability of the crushing component crushing the corn embryo, improving the integrity rate of the corn embryo, and facilitating the subsequent complete separation of the corn embryo from the endosperm, and can reduce the fat content of the corn flour obtained after the endosperm is ground; on the other hand, the dual effects of grinding and crushing can improve the uniformity of endosperm crushing and crushing. At the same time, since the corn kernels need to pass through the grinding gap and continuously fall into the crushing chamber, the feeding uniformity of the crushing chamber can be improved, thereby further improving the crushing uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the front view of the structure of a corn grits crusher provided by an embodiment of the present invention; Figure 2 For along Figure 1 Schematic diagram of the cross-sectional structure along the AA line; Figure 3 For along Figure 1 Schematic diagram of the cross-sectional structure along the middle BB line; Figure 4 For along Figure 1 Schematic diagram of the cross-sectional structure of the CC line; Figure 5 A schematic diagram of the three-dimensional structure of the pressure regulating mechanism used in an embodiment of the present invention; Figure 6 It is a front view structural schematic diagram of the pressure regulating mechanism adopted in the embodiment of the present invention; Figure 7 For along Figure 6 Schematic diagram of the cross-sectional structure along the DD line.

[0016] In the figure: 10, body; 101, grinding chamber; 102, crushing chamber; 103, feed port; 104, discharge port; 105, material drop channel; 106, discharge channel; 20, grinding roller; 200, grinding gap; 30, crushing assembly; 31, crushing roller; 32, screen; 33, serrated plate; 34, guide plate; 40, pressure regulating mechanism; 41, first shaft seat; 411, swing arm; 412, first connecting ear; 413, connector; 4131, second rotating pin; 42, second shaft seat; 421, first Two connecting ears; 43, first elastic member; 44, traction assembly; 441, double-headed pull rod; 4411, first external thread section; 4412, second external thread section; 442, adjusting lock nut; 443, pressure regulating head; 4431, second elastic member; 4432, sleeve; 4433, screw sleeve; 4434, pressure head; 44341, stop step; 44342, internal thread hole; 50, fixing seat; 51, adjusting rod; 511, operating panel; 52, first rotating pin; 60, first driving member; 70, second driving member. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] It should be noted that when an element is referred to as being "disposed on" or "connected to" another element, it may be directly on or indirectly on another element. It should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meanings of "multiple" and "several" are two or more, unless otherwise clearly and specifically defined.

[0019] Please also read Figures 1 to 7The corn grits crusher provided by the present invention is now described. The corn grits crusher comprises a machine body 10, two material-grinding rollers 20, and a crushing assembly 30; wherein the machine body 10 has a material-grinding chamber 101 and a crushing chamber 102 arranged up and down, a feed inlet 103 is provided at the top of the material-grinding chamber 101, a material-discharging port 104 is provided at the bottom of the crushing chamber 102, and the top of the crushing chamber 102 is connected to the bottom of the material-grinding chamber 101; the two material-grinding rollers 20 are arranged horizontally in pairs in the material-grinding chamber 101, a material-grinding gap 200 is provided between the two material-grinding rollers 20, and the two material-grinding rollers 20 are used to rotate synchronously in opposite directions to crush the endosperm of the corn kernels falling into the material-grinding gap 200; the crushing assembly 30 is arranged in the crushing chamber 102, and is used to crush the fractured endosperm and discharge it together with the detached corn embryo through the discharge port 104.

[0020] It should be noted that, in this embodiment, before the corn kernels are crushed, they are tempered by water vapor and clean water at a set temperature to obtain corn kernels with a moisture content of 17-19%; specifically, the corn kernels are composed of corn embryo and endosperm, wherein the outer layer of the endosperm is wrapped with a cortex, and the corn embryo includes multiple components such as a radicle, a plumule, and a hypocotyl. Since the hydrophilicity of the corn embryo is higher than that of the endosperm (the exposed part of the radicle absorbs water) and the surface of the endosperm is wrapped with a cortex, the corn kernels with a total moisture content of 17-19% after the above-mentioned tempering treatment are in a state where the corn embryo is fully water-absorbed and the toughness is increased, while the endosperm remains dry and hardened.

[0021] On the basis of the above, since the corn germ is located inside the endosperm with only the radicle exposed, when the corn kernels pass through the grinding gap 200, the dry and hardened endosperm is fractured under the squeezing action of the two grinding rollers 20, while the endosperm with higher flexibility remains intact. The corn kernels enter the grinding chamber 102 in this state, and the grinding component 30 only needs a lower rotation speed to crush the already fractured endosperm into uniform particles (generally split into three to five petals). Since the corn germ has better toughness and the low-speed running grinding component 30 has less impact force on it, it can fall off from the broken endosperm in a complete form. Therefore, the broken endosperm and the complete corn germ are discharged from the discharge port 104 and screened to obtain pure endosperm, thereby significantly reducing the fat content of corn flour obtained by grinding the endosperm.

[0022] Compared with the prior art, the corn grits crusher provided in this embodiment has a grinding chamber 101 disposed on the upper part of the machine body 10 and a crushing chamber 102 disposed on the lower part. The corn kernels after the conditioning treatment enter the grinding chamber 101, and a grinding gap 200 is formed between two synchronously counter-rotating grinding rollers 20. When the corn kernels pass through the grinding gap 200, the endosperm is fractured by the two grinding rollers 20. After the endosperm is fractured, the corn kernels fall into the crushing chamber 102, and the crushing assembly 30 impacts and cuts the fractured endosperm to fracture the endosperm and make the corn embryo fall off completely from the endosperm, thereby enabling The crushing component 30 can achieve endosperm crushing by setting a lower linear speed, thereby reducing the probability of the crushing component 30 crushing the corn embryo, improving the integrity rate of the corn embryo, and facilitating the subsequent separation of the corn embryo from the endosperm, which can reduce the fat content of the corn flour obtained after the endosperm is ground; on the other hand, the dual effects of rolling and crushing can improve the uniformity of endosperm crushing. At the same time, since the corn kernels need to pass through the grinding gap 200 and continuously fall into the crushing chamber 102, the feeding uniformity of the crushing chamber 102 can be improved, thereby further improving the crushing uniformity.

[0023] For some possible implementations, see Figure 3 and Figure 4 The two ends of the two material rolling rollers 20 are respectively connected with a pressure regulating mechanism 40, and the pressure regulating mechanism 40 is used to adjust the material rolling gap 200 and the rolling force of the two material rolling rollers 20 on the corn kernels. The ends of the two material rolling rollers 20 are connected by the pressure regulating mechanism 40. By adjusting the material rolling gap 200 and the rolling force, it is possible to avoid the situation where the material rolling rollers 20 squeeze the corn too much, causing the corn embryo to be damaged and broken, or the material rolling rollers 20 squeeze the corn kernels too little, causing the endosperm of the smaller corn kernels to be unable to be pressed and broken, thereby improving the corn kernel rolling effect and the rolling adaptability to corn kernels of different particle sizes.

[0024] In some embodiments, see Figure 5 and Figure 6 The pressure regulating mechanism 40 includes a first shaft seat 41, a second shaft seat 42, a first elastic member 43 and a traction assembly 44; wherein the first shaft seat 41 is fixedly connected to the machine body 10 and rotatably cooperates with the end of one of the grinding rollers 20; the second shaft seat 42 is slidably or rotatably connected to the machine body 10 and rotatably cooperates with the end of the other grinding roller 20; the first elastic member 43 is connected between the first shaft seat 41 and the second shaft seat 42 in a compressed state; one end of the traction assembly 44 is connected to the first shaft seat 41, and the other end is connected to the second shaft seat 42, which is used to pull the second shaft seat 42 and adjust the grinding gap 200 and the grinding force.

[0025] The first shaft seat 41 is fixed to the machine body 10, and the second shaft seat 42 is connected to the machine body 10 by sliding or rotating, so that the grinding gap 200 can be adjusted by adjusting the position of the second shaft seat 42; specifically, a first elastic member 43 such as a spring is set between the first shaft seat 41 and the second shaft seat 42 to obtain an elastic pushing force away from each other, and on this basis, the traction component 44 is used to form traction on the first shaft seat 41 and the second shaft seat 42, so that the grinding gap 200 can be reduced by simply adjusting the traction component 44, or the grinding gap 200 can be increased by reversely adjusting the traction component 44 to make the second shaft seat 42 move away from the first shaft seat 41 under the push of the first elastic member 43, which is simple to operate and convenient to adjust.

[0026] It should be understood that the above-mentioned traction component 44 can form elastic traction on the first shaft seat 41 and the second shaft seat 42 based on its own elastic tension, thereby the grinding force of the two grinding rollers 20 can be adjusted by adjusting the elastic tension of the traction component 44; in addition, the elastic tension of the traction component 44 can form a flexible grinding force between the two grinding rollers 20, and the traction components 44 located at both ends of the grinding rollers 20 act independently of each other, thereby ensuring that corn kernels with different particle sizes (the particle size difference cannot be too large and should be within the required range) can have their endosperm parts squeezed and broken after entering the grinding gap 200.

[0027] Optionally, as a specific implementation of the above-mentioned traction assembly 44, please refer to Figure 6 and Figure 7 The traction assembly 44 includes a double-headed pull rod 441, an adjusting lock nut 442, and a pressure regulating head 443; wherein, one end of the double-headed pull rod 441 passes through the first shaft seat 41 and is provided with a first external thread section 4411, and the other end passes through the second shaft seat 42 and is provided with a second external thread section 4412; the adjusting lock nut 442 is threadedly connected to the first external thread section 4411 and abuts against the first shaft seat 41; the pressure regulating head 443 is threadedly connected to the second external thread section 4412 and abuts against the second shaft seat 42; the pressure regulating head 443 has an elastic tensioning force acting on the second shaft seat 42 based on the second elastic member 4431.

[0028] The first shaft seat 41 and the second shaft seat 42 may be provided with a hole or a groove structure for the double-headed pull rod 441 to pass through. The two ends of the double-headed pull rod 441 pass through the first shaft seat 41 and the second shaft seat 42 respectively, and then connect the adjusting nut and the pressure regulating head 443 to form a tensioned state. Then, by rotating the adjusting lock nut 442, the distance between the second shaft seat 42 and the first shaft seat 41 under the traction of the double-headed pull rod 441 can be adjusted, thereby adjusting the size of the rolling gap. By pre-stressing the second elastic member 4431 such as a disc spring provided on the pressure regulating head 443, the size of the elastic tensioning force applied by the double-headed pull rod 441 to the second shaft seat 42 and the first shaft seat 41 can be adjusted, thereby realizing the adjustment of the size of the rolling force between the two rolling rollers 20; the structure is simple and the adjustment is convenient.

[0029] Specifically, Figure 7 As shown, the pressure regulating head 443 used in this embodiment includes a sleeve 4432 and a pressure head 4434; the sleeve 4432 is slidably sleeved on the double-headed pull rod 441 and abuts against the side of the second shaft seat 42 away from the first shaft seat 41, and a threaded sleeve 4433 is provided in the sleeve 4432; one end of the pressure head 4434 is provided with a stop step 44341, and the other end is inserted into the sleeve 4432 and threadedly matched with the threaded sleeve 4433, and the end of the pressure head 4434 inserted into the threaded sleeve 4433 is provided with an internal threaded hole 44342, and the internal threaded hole 44342 is threadedly matched with the second external thread section 4412; wherein the second elastic member 4431 is sleeved on the pressure head 4434, and the second elastic member 4431 is located between the stop step 44341 and the sleeve 4432, and is used to elastically push the stop step 44341 to form an elastic tensioning force on the second shaft seat 42.

[0030] It should be noted that the pitch of the above-mentioned internal threaded hole 44342 is equal to the pitch of the threaded sleeve 4433. Therefore, when the rotating pressure head 4434 compresses or releases the second elastic member 4431, the length change of the second external thread section 4412 extending into the internal threaded hole 44342 can be consistent with the change in the compression amount of the second elastic member 4431, thereby achieving the adjustment of the grinding force while keeping the grinding gap unchanged.

[0031] Here, the second elastic member 4431 can be a single or multiple stacked disc springs. The distance between the stop step 44341 and the sleeve 4432 can be adjusted by rotating the pressure head 4434, so as to increase or decrease the preload pressure on the second elastic member 4431. The double-headed pull rod 441 is connected with the internal threaded hole 44342 at the end of the pressure head 4434 by its second external thread section 4412. When the corn kernels enter the grinding gap 200, the reaction force of the grinding roller 20 moving away from each other is transmitted to the double-headed pull rod 441. The pulling force of the double-headed pull rod 441 on the pressure head 4434 increases. At this time, the second elastic member 4431 is forced to move forward. One-step compression allows the grinding gap 200 to expand elastically to achieve flexible grinding of the corn kernels by the grinding roller 20; since the second elastic member 4431 has a pre-pressure, the pre-pressure is proportional to the grinding pressure of the grinding roller 20 on the corn kernels, that is, the greater the pre-pressure of the second elastic member 4431, the greater the force required for it to continue to be compressed and deformed, and therefore the higher the grinding pressure of the grinding roller 20 on the corn kernels, and conversely, the smaller the pre-pressure of the second elastic member 4431, the smaller the grinding pressure becomes. Therefore, the grinding pressure of the grinding roller 20 on the corn kernels can be adjusted by adjusting the pre-pressure of the pressure head 4434 on the second elastic member 4431.

[0032] On the basis of the above, since corn kernels have different sizes, the sizes of the corn kernels entering the grinding gap 200 at the same time are also different. Therefore, two sets of traction components 44 are used to act on the two ends of the grinding roller 20 respectively, so that the two ends of the grinding gap 200 can obtain different degrees of elastic expansion based on the particle size of the corn kernels, thereby avoiding the situation where the grinding gap 200 can only change in width and the smaller corn kernels cannot be crushed, which can improve the endosperm fracturing rate of the corn kernels passing through the grinding gap 200.

[0033] For some possible implementations, see Figure 5 and Figure 6 The lower end of the second shaft seat 42 is hinged to the machine body 10 , and the upper end is provided with a second connecting ear 421 suitable for the double-headed pull rod 441 to pass through, and the pressure regulating head 443 abuts against the second connecting ear 421 .

[0034] Here, the second shaft seat 42 adopts a connection method in which the lower end is hinged and the upper end swings, which can reduce the influence of friction resistance on the movement of the second shaft seat 42 compared to the sliding connection to the body 10, thereby improving the force response sensitivity of the second shaft seat 42; specifically, when the corn kernels enter the grinding gap 200 and exert a reverse force on the grinding roller 20, the tension value on the double-headed pull rod 441 increases accordingly and presses the second elastic member 4431 through the stop step 44341. When the pressure of the second elastic member 4431 by the stop step 44341 exceeds its elastic force in the current pre-stressed state, it can enter The second shaft seat 42 is compressed in one step, so that the upper end of the second shaft seat 42 swings away from the first shaft seat 41, thereby realizing flexible crushing of the corn kernels. Since the swinging motion of the second shaft seat 42 is more sensitive to force than the sliding mode, the corn kernels can obtain a more stable crushing pressure, which can avoid the situation where the corn embryo is crushed due to excessive crushing pressure, and the situation where the smaller corn kernels cannot be compressed and broken due to the failure of the grinding gap 200 to return to its original position in time after flexible expansion, thereby improving the endosperm fracturing rate and corn embryo integrity of the corn kernels passing through the grinding gap 200.

[0035] A swing arm 411 is hinged at the top of the first shaft seat 41, and a first connecting ear 412 suitable for the double-headed pull rod 441 to pass through is provided at the upper end of the swing arm 411, and the adjusting lock nut 442 abuts against the side of the first connecting ear 412 away from the second shaft seat 42; a connecting head 413 is provided at the lower end of the swing arm 411; a fixed seat 50 is provided on the body 10, and the fixed seat 50 is horizontally aligned with the connecting head 413; an adjusting rod 51 is passed through the fixed seat 50, and the adjusting rod 51 is rotatably matched with the fixed seat 50, and one end of the adjusting rod 51 is threadedly connected to the connecting head 413, and the other end passes through the body 10 and is provided with an operating panel 511.

[0036] Here, the distance between the hinge axis of the swing arm 411 and the first connecting ear 412 is smaller than the distance between it and the connecting head 413, so that the swing arm 411 can form a lever effect. By rotating the operating disk 511, the adjusting rod 51 drives the swing arm 411 to swing based on the threaded fit between it and the connecting head 413, so that the distance between the first connecting ear 412 and the second connecting ear 421 changes, thereby realizing the adjustment of the distance between the first shaft seat 41 and the second shaft seat 42, and then adjusting the grinding gap 200, the operation is simple and labor-saving.

[0037] Since the second axle seat 42 is hinged, when its upper end swings, it will cause the center of the second axle seat 42 to deviate from the center of the first axle seat 41 in the vertical direction. Therefore, the double-headed pull rod 441 will be subjected to bending moment, which not only affects the reliability of the double-headed pull rod 441, but also is detrimental to the swing response flexibility of the second axle seat 42. Therefore, in this embodiment, V-shaped grooves are respectively provided on the walls of the first connecting ear 412 and the second connecting ear 421 that are away from each other, and V-shaped clamps are respectively provided at the ends of the adjusting lock nut 442 and the pressure regulating head 443 that are close to each other, and the angle of the V-shaped clamp is smaller than the V-shaped groove. During installation, the V-shaped clamps of the adjusting lock nut 442 and the pressure regulating head 443 are respectively inserted into the corresponding V-shaped grooves. Since the V-shaped clamps can swing flexibly in the V-shaped grooves, the double-headed pull rod 441 can adapt to the swing angle of the second axle seat 42, thereby preventing the double-headed pull rod 441 from being subjected to additional bending moment.

[0038] For explanation, see Figure 6 A first rotating pin 52 is provided in the fixing seat 50, a second rotating pin 4131 is provided in the connecting head 413, the adjusting rod 51 radially passes through the first rotating pin 52 and the second rotating pin 4131 in sequence, the adjusting rod 51 is rotationally matched with the first rotating pin 52, and is threadedly matched with the second rotating pin 4131.

[0039] Since the swing of the swing arm 411 will cause a position difference in the height direction between the connecting head 413 and the fixing seat 50, the first rotating pin 52 and the second rotating pin 4131 are provided to enable the adjusting rod 51 to tilt in accordance with the swing of the swing arm 411, thereby preventing the adjusting rod 51 from being deformed due to radial force, while also ensuring the ease of rotation of the adjusting rod 51.

[0040] In some embodiments, the crushing assembly 30 is Figure 2 The structure shown in the figure comprises a crushing roller 31 and a screen 32; wherein the crushing roller 31 is rotatably connected to the grinding chamber 102 and aligned with the material grinding gap 200, and the crushing roller 31 has multiple groups of hammers spaced along its axial direction; the screen 32 surrounds the crushing roller 31 and is arranged in the grinding chamber 102 to form a screen chamber, the top of the screen chamber is open and forms a material drop channel 105 with the bottom of the material grinding chamber 101, and a discharge channel 106 connected to the discharge port 104 is formed between the screen 32 and the wall of the grinding chamber 102. During the rotation of the crushing roller 31, the hammers thereof are used to impact and cut the corn kernels, so that the already cracked endosperm is broken into petals and the corn embryo is completely dropped from the broken endosperm, and then the broken petal endosperm and the complete corn embryo are entered into the discharge channel 106 from the screen holes under the action of centrifugal force, and finally discharged from the discharge port 104.

[0041] Specifically, Figure 2As shown, in this embodiment, sawtooth plates 33 are respectively provided on both sides of the top of the sieve cavity, and a guide plate 34 is rotatably provided at the bottom of the blanking channel 105. The rotating shaft of the guide plate 34 is aligned with the crushing roller 31 up and down, and the top of the guide plate 34 abuts against the inner wall of one side of the blanking channel 105. In the process of the corn kernels following the crushing roller 31 to rotate in the sieve cavity, the unbroken endosperm has a large mass and is subjected to a high centrifugal force, so it will be thrown away when passing through the open area at the top of the sieve cavity. Therefore, a sawtooth plate 33 is provided at the top of the sieve cavity. The thrown corn kernels hit the sawtooth plate 33 and break into pieces, and then fall into the middle area of ​​the sieve cavity. If they are still not broken, they will be hit by the hammer again after falling, and will continue to rotate and will still be thrown away and hit the sawtooth plate 33 again, until they are finally broken into the target particle size. At the same time, in order to prevent the thrown corn kernels from entering the blanking channel 105, the blanking channel 103 is hereby 5 is provided with a guide plate 34, which is tilted against the side wall of the material dropping channel 105, thereby forming a barrier for the corn kernels that are thrown away, and guiding the corn kernels that fall from the grinding gap 200 to enter the sieve cavity along the guide plate 34, and the inclination direction of the guide plate 34 is close to the rotation tangent direction of the crushing roller 31, thereby enabling the corn kernels that enter the sieve cavity to be smoothly mixed into the rotating material, thereby improving the feeding smoothness of the sieve cavity; because the guide plate 34 can swing, the inclination direction of the guide plate 34 can be switched, thereby meeting the bidirectional operation requirements of the crushing roller 31.

[0042] Please note that Figures 2 to 4 A first driving member 60 and a second driving member 70 are provided on the machine body 10; wherein the first driving member 60 is connected to one of the grinding rollers 20 for driving the grinding roller 20 to rotate at a linear speed of 0.5-2 m / s; the second driving member 70 is connected to the crushing assembly 30 for driving the crushing assembly 30 to rotate at a linear speed of 13-19 m / s.

[0043] The first driving member 60 can drive one of the grinding rollers 20 to rotate by means of chain drive or belt drive, and the other grinding roller 20 can rotate passively based on the friction and extrusion of the corn kernels in the grinding gap 200. Of course, the two grinding rollers 20 can also establish a transmission relationship by means of belt drive or chain drive or gear drive or a combination of multiple transmission methods. It should be ensured that the rotation directions of the two grinding rollers 20 are opposite, so that the two grinding rollers 20 are used as active rollers to grind the corn kernels, thereby improving the operation stability; the second driving member 70 can be belt drive or The crushing assembly 30 is driven by a chain drive, wherein the grinding roller 20 and the crushing assembly 30 respectively use two driving parts as power sources and can independently adjust the rotation speed, which can facilitate the matching adjustment of the feed grinding speed and the crushing speed, thereby ensuring the crushing effect of the corn kernels; here, since the corn kernels have been pre-fractured on the endosperm by the grinding roller 20, the crushing assembly 30 uses a linear speed of 13~19m / s, which is lower than the conventional speed, to crush the fractured corn kernels, so that the endosperm can be evenly broken into petals, and at the same time, it can also avoid the crushing of the corn embryo due to excessive rotation speed.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Corn slag crusher, characterized in that: include: The machine body has a material grinding chamber and a crushing chamber arranged up and down, the top of the material grinding chamber is provided with a material inlet, the bottom of the crushing chamber is provided with a material outlet, and the top of the crushing chamber is connected with the bottom of the material grinding chamber; Two material-grinding rollers are arranged in pairs horizontally in the material-grinding cavity, with a material-grinding gap between the two material-grinding rollers, and the two material-grinding rollers are used to rotate synchronously in opposite directions to crush the endosperm of corn kernels falling into the material-grinding gap; A crushing assembly is arranged in the crushing chamber and is used for crushing the fracturing endosperm and discharging the fracturing endosperm together with the detached corn embryo through the discharge port.

2. The corn grits crusher according to claim 1, characterized in that: Pressure regulating mechanisms are respectively connected between the two ends of the two grinding rollers, and the pressure regulating mechanisms are used to adjust the grinding gap and the grinding pressure of the two grinding rollers on the corn kernels.

3. The corn grits crusher according to claim 2, characterized in that: The pressure regulating mechanism comprises: A first shaft seat, fixedly connected to the machine body and rotatably matched with an end of one of the grinding rollers; A second shaft seat is slidably or rotationally connected to the machine body and is rotationally matched with the end of the other grinding roller; A first elastic member, connected between the first shaft seat and the second shaft seat in a compressed state; A traction assembly, one end of which is connected to the first axle seat and the other end of which is connected to the second axle seat, is used for traction of the second axle seat and adjustment of the grinding gap and the grinding force.

4. The corn grits crusher according to claim 3, characterized in that: The traction assembly comprises: A double-ended tie rod, one end of which passes through the first shaft seat and is provided with a first external thread section, and the other end of which passes through the second shaft seat and is provided with a second external thread section; An adjusting lock nut, threadedly connected to the first external thread section and abutting against the first shaft seat; A pressure regulating head is threadedly connected to the second external thread section and abuts against the second shaft seat; the pressure regulating head has an elastic tensioning force acting on the second shaft seat based on the second elastic member.

5. The corn grits crusher according to claim 4, characterized in that: The pressure regulating head comprises: A sleeve head is slidably sleeved on the double-ended pull rod and abuts against a side of the second shaft seat away from the first shaft seat, and a threaded sleeve is arranged inside the sleeve head; A pressure head, one end of which is provided with a stop step, and the other end of which penetrates into the sleeve and is threadedly engaged with the screw sleeve, and one end of the pressure head which penetrates into the screw sleeve is provided with an internal threaded hole, and the internal threaded hole is threadedly engaged with the second external thread section; Wherein, the second elastic member is sleeved on the pressure head and is located between the stop step and the sleeve head, and is used for elastically pushing the stop step to form the elastic tensioning force on the second shaft seat.

6. The corn grits crusher according to claim 4, characterized in that: The lower end of the second shaft seat is hinged to the machine body, and the upper end is provided with a second connecting ear suitable for the double-headed pull rod to pass through, and the pressure regulating head is in contact with the second connecting ear; A swing arm is hinged on the top of the first shaft seat, a first connecting ear suitable for the double-headed pull rod to pass through is provided at the upper end of the swing arm, and the adjusting lock nut abuts against a side of the first connecting ear away from the second shaft seat; a connecting head is provided at the lower end of the swing arm; The machine body is provided with a fixing seat, which is horizontally aligned with the connecting head; the fixing seat is provided with an adjusting rod, which is rotatably matched with the fixing seat, and one end of the adjusting rod is threadedly connected with the connecting head, and the other end passes through the machine body and is provided with an operating panel.

7. The corn grits crusher according to claim 6, characterized in that: A first rotating pin is provided in the fixing seat, a second rotating pin is provided in the connecting head, the adjusting rod radially passes through the first rotating pin and the second rotating pin in sequence, the adjusting rod is rotationally matched with the first rotating pin, and is threadably matched with the second rotating pin.

8. The corn grits crusher according to claim 1, characterized in that: The crushing assembly comprises: A crushing roller is rotatably connected to the crushing chamber and aligned with the grinding gap up and down, and the crushing roller has a plurality of groups of hammers spaced apart along its axial direction; A screen sheet is arranged in the pulverizing chamber around the crushing roller to form a screen chamber, the top of the screen chamber is open and forms a material drop channel with the bottom of the grinding chamber, and a discharge channel connected to the discharge port is formed between the screen sheet and the wall of the pulverizing chamber.

9. The corn grits crusher according to claim 8, characterized in that: Sawtooth plates are respectively provided on both sides of the top of the sieve cavity, and a guide plate is rotatably provided at the bottom of the material dropping channel. The rotating shaft of the guide plate is aligned with the crushing roller up and down, and the top of the guide plate abuts against the inner wall of one side of the material dropping channel.

10. The corn grits crusher according to any one of claims 1 to 9, characterized in that: The machine body is provided with a first driving member and a second driving member; wherein, the first driving member is transmission connected to one of the grinding rollers, and is used to drive the grinding roller to rotate at a linear speed of 0.5~2m / s; the second driving member is transmission connected to the crushing assembly, and is used to drive the crushing assembly to rotate at a linear speed of 13~19m / s.

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