Rice huller capable of being used for husking small grains

Abstract

The utility model provides a rice huller capable of being used for hulling small grains. The rice huller comprises a driving assembly for rolling, a previous rolling assembly and a later rolling assembly. The pre-grinding assembly is arranged on the rice hulling area, is matched with the driving assembly for grinding and is used for grinding the grains from the feeding area so as to realize primary grinding; the rear rolling assembly is arranged on the rice hulling area, is matched with the driving assembly for rolling and is used for rolling grains which are rolled for the first time and come out of an area at the relative lower part between a previous first rotary rolling piece and a previous second rotary rolling piece, so that secondary rolling is realized; the preceding rolling assembly comprises a preceding first rotary type rolling piece and a preceding second rotary type rolling piece which rotate at different linear speeds in the working process and are opposite in direction; the rear rolling assembly comprises a rear first rotary rolling piece and a rear second rotary rolling piece which are different in rotating linear speed and opposite in direction. The hulling rate of small-size grains can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain processing equipment, in particular to a shelling device for hulled grains. Background Art

[0002] A rice huller is a commonly used grain processing equipment. Existing rice hullers use a pair of rolling rollers with different linear speeds to remove the rice husks.

[0003] However, when using existing rice hullers, grains with smaller grain volumes (also known as small grains) with their own shells, such as but not limited to millet (also known as "millet") and sorghum, have a low shelling rate. Utility Model Content

[0004] The purpose of the utility model is to provide a rice huller that can be used for shelling small grains. By installing two sets of rolling components in the casing of a rice huller, rolling is achieved in steps to solve the problem of relatively low efficiency in shelling small grains.

[0005] Based on the above purpose, the utility model proposes a rice husker that can be used for shelling small grains. The rice husker is provided with a feeding area, a rice husking area and a separation area in sequence according to the working direction. The rice husker includes:

[0006] Drive assembly for rolling, including:

[0007] at least one drive for crushing;

[0008] The first rolling assembly is provided on the rice husking area and cooperates with the rolling drive assembly to roll the rice grains from the feeding area when in operation, and includes:

[0009] The first rotating rolling element has a substantially circular cross section and rotates at a first linear speed during operation; and

[0010] The first second rotary rolling member has a substantially circular cross section and cooperates with the first rotary rolling member to rotate at a first second linear speed during operation;

[0011] The directions of the first linear velocity and the second linear velocity are opposite and different in magnitude. During operation, the grains from the feeding area enter from the relatively upper area between the first rotating rolling element and the second rotating rolling element, and exit from the relatively lower area between the first rotating rolling element and the second rotating rolling element, thereby rolling the grains from the feeding area for the first time.

[0012] The rear rolling assembly is provided on the rice husking area and cooperates with the rolling drive assembly. When working, it is used to roll the rice grains that have been rolled for the first time and come out from the relatively lower area between the first rotating rolling member and the second rotating rolling member to achieve the second rolling, including:

[0013] The first rotating rolling element has a substantially circular cross section and rotates at a first linear speed during operation; and

[0014] The second rear rotary rolling member has a substantially circular cross section and cooperates with the first rear rotary rolling member to rotate at a second rear linear speed during operation;

[0015] wherein the directions of the first linear velocity and the second linear velocity are opposite and different in magnitude, and during operation, the grains that have been rolled for the first time, which come out from the relatively lower area between the rotating first rotating rolling member and the rotating second rotating rolling member, enter from the relatively upper area between the rotating first rotating rolling member and the rotating second rotating rolling member, and exit from the relatively lower area between the rotating first rotating rolling member and the rotating second rotating rolling member, so as to achieve the second rolling; and

[0016] The separator is arranged in the separation area and is used for separating the husks in a detached state from the grains from the hulling area.

[0017] In one example, the operating power required to drive the leading rolling assembly is greater than the operating power required to drive the trailing rolling assembly.

[0018] In one example, the number of the rolling drivers is multiple, at least one of which is directly or indirectly driven by the preceding rolling assembly, and at least another one is driven by the following rolling assembly;

[0019] The sum of the working powers of all the rolling drivers that cooperate with the preceding rolling assembly is 1 to 1.5 times the sum of the working powers of all the rolling drivers that cooperate with the succeeding rolling assembly.

[0020] In one example, the number of the rolling driver is single, and it is directly or indirectly driven and cooperated with the leading rolling assembly and the trailing rolling assembly at the same time;

[0021] The working power output by the rolling driver to drive the preceding rolling assembly is 1 to 1.5 times the working power output by the driver to drive the following rolling assembly.

[0022] In one example, it also includes:

[0023] At least one guide member is provided between the relatively lower area between the preceding first rotating rolling member and the preceding second rotating rolling member and the relatively upper area between the following first rotating rolling member and the following second rotating rolling member. When in operation, it is used to guide the grains that have been rolled for the first time and come out from the relatively lower area between the preceding first rotating rolling member and the preceding second rotating rolling member to the relatively upper area between the following first rotating rolling member and the following second rotating rolling member.

[0024] In one example, a prior distance adjustment component is further included, which cooperates with the prior first rotating rolling member or the prior second rotating rolling member, and the prior distance adjustment component includes:

[0025] The first distance adjustment rotating arm is provided for the first rotating rolling member or the second rotating rolling member; and

[0026] The driver for prior distance adjustment cooperates with the prior distance adjustment rotating arm and is used to drive the prior distance adjustment rotating arm to rotate and move so as to adjust the distance between a prior rotational rolling member provided on the prior distance adjustment rotating arm and another prior rotational rolling member which is not provided on the prior distance adjustment rotating arm and is fixed in position and cooperates with the prior rotational rolling member for rolling.

[0027] In one example, the invention further includes a rear distance adjustment component, which cooperates with the rear first rotating rolling member or the rear second rotating rolling member, and the rear distance adjustment component includes:

[0028] A rear distance adjustment rotating arm is provided for the first rear rotating rolling member or the second rear rotating rolling member; and

[0029] The rear distance adjustment driver cooperates with the rear distance adjustment arm to drive the rear distance adjustment arm to rotate and move so as to adjust the distance between a rear rotary rolling member provided on the rear distance adjustment arm and another rear rotary rolling member that is not provided on the rear distance adjustment arm and is fixed in position and cooperates with the rear rotary rolling member to perform rolling.

[0030] In one example, a prior manual operation component and a subsequent manual operation component are further included;

[0031] The prior manual operation components include:

[0032] A previous manual operation port is provided corresponding to the previous rolling assembly; and

[0033] A first manual operation door is hinged to the first manual operation opening and can be opened and closed on the first manual operation opening;

[0034] The post-manual operation component includes:

[0035] A rear manual operation port is provided corresponding to the rear rolling assembly; and

[0036] The rear manual operation door is hinged on the rear manual operation opening and can be opened and closed on the rear manual operation opening.

[0037] In one example, the prior manual operation component further includes a prior manual observation window provided on the prior manual operation door;

[0038] The rear manual operation component also includes a rear manual observation window, which is arranged on the rear manual operation door.

[0039] Additional aspects and advantages of the present invention will be given in the following description, and some will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 It is a schematic front view of the overall structure according to one embodiment of the present utility model.

[0042] Figure 2 for Figure 1 Schematic side view of .

[0043] Figure 3 The figure is a partial structural diagram showing the structure inside the casing after removing one side of the casing according to one embodiment of the present invention.

[0044] Figure 4 for Figure 3 Schematic diagram of the local structure from another perspective.

[0045] Figure 5 for Figure 3 Schematic diagram of the main view.

[0046] Figure 6 for Figure 3 Schematic rear view.

[0047] Figure 7 It is a schematic diagram of a local structure shown after the portion of the casing located in the rice hulling area is removed according to one embodiment of the utility model.

[0048] Figure 8 for Figure 7Schematic diagram of the local structure from another perspective.

[0049] The accompanying drawings are for illustrative purposes only and are not intended to be drawn to scale. In the accompanying drawings, the same reference symbols are used to indicate the same elements. For the purpose of simplicity, not every component is numbered in every drawing. DETAILED DESCRIPTION

[0050] The present invention will be described below with reference to several examples. It should be understood that these embodiments are described to enable those skilled in the art to better understand and implement the present invention, and do not represent or imply any limitation on the scope of the present invention.

[0051] Currently, there is no equipment specifically designed for shelling small grains such as millet. The only way to shell grains is to use a rice huller specifically designed for shelling relatively large grains such as rice or wheat. The common operation or structure of the huller is as follows.

[0052] A rice huller is a machine that mechanically hulls relatively large grains such as rice and wheat. It typically consists of a feeding area, where the grains enter; a hulling area, where the grains are husked; and a separation area, where the hulls are removed from the grains.

[0053] A hulling operation method is to manually or mechanically transport the residues (i.e., a mixture of hulled grains and unhulled grains) received at the output end of the huller after the small grains have been hulled once by an existing huller to the input end (i.e., the feed port) of the huller so that the small grains can be hulled a second time by the same existing huller.

[0054] Another shelling operation method is to pass two existing rice hullers through a closed pipe and a suction device (such as a fan, etc.), one end of the closed pipe is used to close the output end of one existing rice huller, and the other end is used to close the input end of the other existing rice huller.

[0055] The aforementioned shelling operation requires the pair of rollers to roll back and forth twice to achieve an acceptable shelling rate, increasing the workload of the rollers. This means that to achieve an acceptable shelling rate, the operating hours of the existing rice huller must be at least doubled. This means that, given the same loss rate of the rollers, the amount of grain that can be shelled at an acceptable rate is at least halved. Furthermore, manually lifting the residue from the output end of the existing rice huller to the input end (i.e., the feed port) of the existing rice huller, located relatively above, significantly increases the workload of the operator.

[0056] Although the above-mentioned another shelling operation can solve the problem of the pair of crushing rollers in the above-mentioned shelling operation, since the price of an existing rice huller is at least tens of thousands, this will inevitably increase the cost of production materials required for the shelling operation; moreover, the additional existing rice hullers will also increase the requirements for installation space, which is especially true for situations where the installation space is very limited, so that the installation environment of the other shelling operation will be subject to certain restrictions; in addition, the costs required for connecting the two existing rice hullers and the related pipes and suction equipment (such as fans, etc.) and the space required for installation are also required.

[0057] In order to solve the above-mentioned possible problems, one embodiment of the present invention is a complete structure, including a casing 1, which can be divided into a feeding area a, a hulling area b and a separation area c from the upper part to the lower part of the casing 1. It also includes a rolling drive component, a first rolling component, a rear rolling component and a separator.

[0058] It should be noted that the feeding area a, the hulling area b and the separation area c in one embodiment of the present invention can be three independent parts, which can be combined when used. Such a design is convenient for the individual replacement of product components; in addition, each independent part can be transported separately to reduce the complexity of transportation; each part can also be sold separately, which is conducive to consumers choosing to purchase in a relatively economical way.

[0059] The operating principle is that, with the driving force provided by the rolling drive assembly, smaller grains to be hulled (relative to rice, wheat, etc.) enter the first rolling assembly driven by the rolling drive assembly, where they undergo a first rolling process. They then directly enter the second rolling assembly driven by the rolling drive assembly for a second rolling process. The first and second rolling assemblies are located within the same hulling area. After the second rolling process, the grains enter the separator, where the hulls of the grains, which have been released after the second rolling process, are automatically separated from the portion of the grains previously enclosed by the hulls.

[0060] In addition, it should be noted that after the first rolling, the grains coming out of the previous rolling assembly include grains with husks, grains without husks, and husks that have been detached, which means that the number of grains that need to be husked is greatly reduced.

[0061] Furthermore, even these grains with husks may be divided into grains that are completely and tightly wrapped by the husks, grains that have a portion of the husk tightly wrapped within it and another portion separated from the wrapped portion, or even if the husk is not separated, the tightness of the other portion of the husk to the wrapped portion is reduced. Moreover, after the first rolling, part of the heat generated by the friction when the grain is rolled by the first rolling assembly is absorbed by the grain, which may cause the temperature of the grain to rise. Since the husk in the grain and the portion wrapped by the grain are different materials with different thermal expansion coefficients, the second rolling by the subsequent rolling assembly may no longer require the same rotational force as the first rolling. This may eventually lead to the following situation: the power required to drive the subsequent rolling assembly may be less than the power required to drive the first rolling assembly.

[0062] The power required to drive the second rolling may be reduced. Therefore, when selecting a driving component for rolling, you do not need to choose a model with a rated power twice the power required to drive the first rolling component, but rather a model with a relatively smaller rated power.

[0063] As is well known, the volume, weight, and material consumption of a high-rated power roller drive assembly are larger than those of a low-rated power roller drive assembly, and are usually not of the same magnitude. Therefore, choosing a low-rated roller drive assembly is not only economically advantageous, but more importantly, it offers advantages in terms of installation space requirements, the supporting structure and materials used to support the roller drive assembly, and the overall product layout.

[0064] As an example of the working power required to drive the first rolling assembly and the second rolling assembly, the working power required to drive the first rolling assembly is 1 to 1.5 times the working power required to drive the second rolling assembly, and optionally 1.1, 1.2, 1.3, or 1.4 times. That is, the values ​​of the working power of the two can be different and do not need to be the same, so as to avoid unnecessary power output. Of course, if the ratio of the working power is too large, that is, if the working power required by the second rolling assembly is lower than a minimum working power threshold, its shelling rate will be affected. Of course, if the ratio of the working power is close to 1, the rated power of the selected driver will be larger than the actual working power, and its function cannot be fully exerted.

[0065] As an example, in another existing small grain shelling device, two rice or wheat hullers with the same rated power are used to shell millet. When both use a 12-inch rolling length, both are equipped with a drive motor with a rated power of 11 kW. In actual use, the first rice or wheat huller typically requires 11 kW of power, while the second rice or wheat huller only requires 7.5 kW. The ratio of 11 kW to 7.5 kW is 1.47. This results in the drive motor in the second rice or wheat huller not fully utilizing its rated power, resulting in overkill. The rolling drive assembly in the embodiment of the present invention can select a rolling drive assembly with an appropriate rated power according to the actual conditions of the working power required by the preceding rolling assembly and the working power required by the following rolling assembly, without the need to select a relatively large drive motor with a rated power exceeding the above-mentioned working power.

[0066] Rolling drive components

[0067] The rolling drive assembly is a component for driving the preceding rolling assembly and the following rolling assembly, and includes a rolling driver. The rolling driver drives the preceding rolling assembly and the following rolling assembly to perform rotational motion to achieve the purpose of rolling the grains.

[0068] The number of the rolling drivers can be one or more, and can be set according to needs.

[0069] In one example, the rolling driver may be a motor structure, which may be a variable frequency motor that achieves speed change through motor frequency change, or a fixed frequency motor. In this case, the fixed frequency motor can be connected to a transmission to achieve speed change. In another example, the rolling driver is a combination of a cylinder and a rotary transmission component. The rotary transmission component may, for example, include a push rod and a rotating wheel connected to it, the push rod is connected to the movable end of the cylinder, and the rotating wheel is directly or indirectly connected to the preceding rolling component and the following rolling component) to achieve rotational motion.

[0070] First rolling components

[0071] The first rolling assembly is arranged on the rice husking area and cooperates with the rolling drive assembly. When working, it is used to roll the grains from the feeding area. It includes a first rotating rolling member and a second rotating rolling member, and the two are arranged close to each other (that is, the distance between the two is usually basically zero).

[0072] Since the first rotary rolling member and the second rotary rolling member are rotationally matched to achieve rotary rolling, the cross-sections of the two rotary rolling members are substantially circular.

[0073] During operation, the first preceding rotating rolling member rotates at a first preceding linear velocity, and the second preceding rotating rolling member rotates at a second preceding linear velocity. The directions of the first preceding linear velocity and the second preceding linear velocity are opposite and different in magnitude. During operation, the grains from the feeding area enter from the relatively upper area between the first preceding rotating rolling member and the second preceding rotating rolling member, and exit from the relatively lower area between the first preceding rotating rolling member and the second preceding rotating rolling member, thereby crushing the grains from the feeding area for the first time.

[0074] Rolling components at the rear

[0075] The rear rolling assembly is arranged on the rice hulling area and cooperates with the rolling drive assembly. When working, it is used to roll the grains that have been rolled for the first time from the relatively lower area between the rotating first rotating rolling member and the first second rotating rolling member. It is included in the rear first rotating rolling member and the rear second rotating rolling member, and the two are arranged close to each other (that is, the distance between the two is usually basically zero).

[0076] Since the first rear rotary rolling member and the second rear rotary rolling member are rotationally matched to achieve rotary rolling, the cross-sections of the two rotary rolling members are substantially circular.

[0077] During operation, the first rear rotating rolling member rotates at a first rear linear speed, and the second rear rotating rolling member rotates at a second rear linear speed. The directions of the first rear linear speed and the second rear linear speed are opposite and different in size. During operation, the grains that have been rolled for the first time come out from the relatively lower area between the first rear rotating rolling member and the second rear rotating rolling member, enter from the relatively upper area between the first rear rotating rolling member and the second rear rotating rolling member, and exit from the relatively lower area between the first rear rotating rolling member and the second rear rotating rolling member, so as to realize the second rolling.

[0078] separator

[0079] The separator is arranged in the separation area and is used for separating the husks in a detached state from the grains from the hulling area.

[0080] The separator includes a separation blower, which utilizes the difference in specific gravity between husks on the grains and the part wrapped by the husks, and separates the husks from the part wrapped by the husks through wind blown by the separation blower.

[0081] An example of an embodiment of the present invention is as follows: Figures 1 to 8 As shown, it includes a rolling drive motor 101 (a structure of the rolling driver), a belt transmission assembly 210 (a structure of the rolling transmission assembly), a leading first rotating rolling shaft 311 and a coaxial leading first rotating rolling roller 312 (a structure of the leading first rotating rolling part), a leading second rotating rolling shaft 321 and a coaxial leading second rotating rolling roller 322 (a structure of the leading second rotating rolling part), a rear first rotating rolling shaft 411 and a coaxial rear first rotating rolling roller 412 (a structure of the rear first rotating rolling part), a rear second rotating rolling shaft 421 and a coaxial rear second rotating rolling roller 422 (a structure of the rear second rotating rolling part).

[0082] like Figures 3 to 8 As shown, the belt drive assembly 210 includes a leading first pulley 211, a leading second pulley 212, a trailing first pulley 213, a trailing second pulley 214, and a closed rolling belt 215. The leading first pulley 211 and the leading first rotating rolling rubber roller 312 are coaxially mounted on the leading first rotating rolling shaft 311. The leading second pulley 212 and the leading second rotating rolling rubber roller 322 are coaxially mounted on the leading second rotating rolling shaft 321. The trailing first pulley 213 and the trailing first rotating rolling rubber roller 412 are coaxially mounted on the trailing first rotating rolling shaft 411. The trailing second pulley 214 and the trailing second rotating rolling rubber roller 422 are coaxially mounted on the trailing second rotating rolling shaft 421.

[0083] The rolling transmission belt 215 is simultaneously coordinated with the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214. That is, the rolling transmission belt 215 is directly or indirectly driven by the rolling drive motor 101, and simultaneously drives the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214 to rotate.

[0084] During operation, the linear speeds of rotation of the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214 are the same. The rotation angular speeds of the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214 can be controlled by selecting the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214 with different radii; so that the rotation angular speeds of the first rotating rolling rubber roller 312, the second rotating rolling rubber roller 322, the first rotating rolling rubber roller 412 and the second rotating rolling rubber roller 422, which are coaxial with the first pulley 211, the second pulley 212, the first pulley 213 and the second pulley 214 respectively, are different.

[0085] Typically, all of the aforementioned rotating rollers have substantially circular cross-sections (other shapes are possible), and their maximum radii are substantially the same. This allows the rollers to rotate at different speeds, such that a linear speed difference is maintained between the first rotating roller 312 and the second rotating roller 322, and another linear speed difference is maintained between the second rotating roller 412 and the second rotating roller 422, thereby achieving the goal of rolling and shelling the grain.

[0086] Another example of an embodiment of the present invention includes two driving motors for rolling (a structure of the rolling driver), a belt transmission assembly (a structure of the rolling transmission assembly), a leading first rotating rolling shaft and a coaxial leading first rotating rolling roller (a structure of the leading first rotating rolling part), a leading second rotating rolling shaft and a coaxial leading second rotating rolling roller (a structure of the leading second rotating rolling part), a rear first rotating rolling shaft and a coaxial rear first rotating rolling roller (a structure of the rear first rotating rolling part), a rear second rotating rolling shaft and a coaxial rear second rotating rolling roller (a structure of the rear second rotating rolling part).

[0087] The belt drive assembly includes a first leading pulley, a second leading pulley, a first trailing pulley, a second trailing pulley, and two closed rolling belts. The first leading pulley and the first leading rotating rolling rubber roller are coaxially mounted on the first leading rotating rolling shaft. The second leading pulley and the second leading rotating rolling rubber roller are coaxially mounted on the second leading rotating rolling shaft. The first trailing pulley and the first trailing rotating rolling rubber roller are coaxially mounted on the first trailing rotating rolling shaft. The second trailing pulley and the second trailing rotating rolling rubber roller are coaxially mounted on the second trailing rotating rolling shaft.

[0088] One of the rolling transmission belts cooperates with the first pulley and the second pulley at the same time, that is, the rolling transmission belt is driven directly or indirectly by a rolling drive motor to simultaneously drive the first pulley and the second pulley to rotate.

[0089] Another of the rolling transmission belts cooperates with the first rear pulley and the second rear pulley at the same time, that is, the other rolling transmission belt drives the first rear pulley and the second rear pulley to rotate at the same time under the direct or indirect drive of the other rolling drive motor.

[0090] During operation, the linear speeds of rotation of the first pulley and the second pulley are the same. The rotation angular speeds of the first pulley and the second pulley can be controlled by selecting the first pulley and the second pulley with different radii; so that the rotation angular speeds of the first rotating rolling rubber roller and the second rotating rolling rubber roller, which are coaxial with the first pulley and the second pulley respectively, are different.

[0091] The rotational linear velocities of the first rear pulley and the second rear pulley are the same, and the rotational angular velocities of the first rear pulley and the second rear pulley can be controlled by selecting the first rear pulley and the second rear pulley with different radii; so that the rotational angular velocities of the first rear rotating rolling rubber roller and the second rear rotating rolling rubber roller, which are coaxial with the first rear pulley and the second rear pulley respectively, are different.

[0092] Normally, the radii of the cross sections of all the above-mentioned rotating rolling rubber rollers are basically the same, so that the rotational linear speeds of all the rotating rolling rubber rollers can be different, so that a linear speed difference is maintained between the first rotating rolling rubber roller and the second rotating rolling rubber roller, and another linear speed difference is maintained between the first rotating rolling rubber roller and the second rotating rolling rubber roller, so as to achieve the purpose of rolling and shelling the grains.

[0093] At this time, due to the setting of two rolling drive motors, when selecting the model of the rolling drive motor that drives the subsequent rolling assembly, a model with a rated power smaller than the rated power of the rolling drive motor that drives the preceding rolling assembly can be selected. This is not only more economical than two rolling drive motors with the same rated power (the rated power is the rated power of the one with the largest rated power among the two), but can also be optimized in terms of its weight, volume, structure, material, etc.

[0094] Another example of an embodiment of the present invention includes four driving motors for rolling (a structure of the rolling driver), a leading first rotating rolling shaft and a coaxial leading first rotating rolling roller (a structure of the leading first rotating rolling part), a leading second rotating rolling shaft and a coaxial leading second rotating rolling roller (a structure of the leading second rotating rolling part), a rear first rotating rolling shaft and a coaxial rear first rotating rolling roller (a structure of the rear first rotating rolling part), a rear second rotating rolling shaft and a coaxial rear second rotating rolling roller (a structure of the rear second rotating rolling part).

[0095] The four rolling drive motors are directly or indirectly driven and cooperated with the first rotating rolling shaft, the second rotating rolling shaft, the first rotating rolling shaft and the second rotating rolling shaft.

[0096] During operation, the four rolling drive motors independently control the rotational angular velocity of the first rotating rolling rubber roller, the preceding second rotating rolling rubber roller, the following first rotating rolling rubber roller and the following second rotating rolling rubber roller corresponding thereto.

[0097] Normally, the radii of the cross sections of all the above-mentioned rotating rolling rubber rollers are basically the same, so that the rotational linear speeds of all the rotating rolling rubber rollers can be different, so that a linear speed difference is maintained between the first rotating rolling rubber roller and the second rotating rolling rubber roller, and another linear speed difference is maintained between the first rotating rolling rubber roller and the second rotating rolling rubber roller, so as to achieve the purpose of rolling and shelling the grains.

[0098] At this time, due to the setting of four rolling drive motors, when selecting the model of the two rolling drive motors that drive the rear rolling assembly, a model with a rated power smaller than the rated power of the two rolling drive motors that drive the front rolling assembly can be selected. This is not only more economical than four rolling drive motors with the same rated power (the rated power is the rated power of the one with the largest rated power among the four), but also can be optimized in terms of its weight, volume, structure, material and other aspects.

[0099] Another embodiment of the present invention, in addition to the above-mentioned embodiment, also includes a guide member, which can be arranged between the relatively lower area between the preceding first rotating rolling member and the preceding second rotating rolling member and the relatively upper area between the following first rotating rolling member and the following second rotating rolling member.

[0100] During operation, the guide member is used to guide the grains that have been rolled for the first time from the relatively lower area between the first rotating rolling member and the second rotating rolling member to the relatively upper area between the first rotating rolling member and the second rotating rolling member, so as to reduce the deviation of the grains from their preset movement trajectory during movement, so that the grains that have been rolled for the first time can basically enter the subsequent rolling assembly for a second rolling, making it possible to increase the total shelling rate of a certain number of grains.

[0101] As an example of the guide member, Figure 7 、 8 As shown, it includes a guide plate 501 , and the two lateral sides of the guide plate 501 are bent upward to form a blocking portion 502 .

[0102] The guide plate 501 is tilted downward to facilitate the downward movement of the grains so as to enter the subsequent rolling assembly.

[0103] Another embodiment of the present invention, in addition to the above-mentioned embodiments, may also include a first distance adjustment component and / or a second distance adjustment component.

[0104] The preceding distance adjusting component and / or the following distance adjusting component are used to adjust the distance between the preceding first rotating rolling member and the preceding second rotating rolling member and between the following first rotating rolling member and the following second rotating rolling member respectively.

[0105] Since the radially outward working surfaces of the first preceding rotary rolling member and the second preceding rotary rolling member, as well as the first following rotary rolling member and the second following rotary rolling member, will wear due to friction after working for a period of time, the distances between the first preceding rotary rolling member and the second preceding rotary rolling member, as well as between the first following rotary rolling member and the second following rotary rolling member, will become larger, which greatly affects the shelling efficiency of the grains. Therefore, after working for a period of time, it is necessary to manually adjust the distances between the first preceding rotary rolling member and the second preceding rotary rolling member, as well as between the first following rotary rolling member and the second following rotary rolling member, which is time-consuming and labor-intensive. For this reason, the above-mentioned prior distance adjustment component and / or the subsequent distance adjustment component are provided.

[0106] Prior distance adjustment component

[0107] The prior distance adjustment component cooperates with the prior first rotating rolling part or the prior second rotating rolling part. The prior distance adjustment component includes a prior distance adjustment rotating arm and a prior distance adjustment driver. The prior distance adjustment rotating arm has the function of rotating under the drive of the prior distance adjustment driver. The prior first rotating rolling part or the prior second rotating rolling part can be arranged on the prior distance adjustment rotating arm. When the prior distance adjustment rotating arm rotates, the prior first rotating rolling part or the prior second rotating rolling part provided thereon also moves at the same time, thereby changing the distance between the prior first rotating rolling part and the prior second rotating rolling part.

[0108] An example of the prior adjustable distance arm is as follows: Figure 3 、 5 7, is a seat-type structure of the prior distance adjustment with a rotating seat 611, the prior distance adjustment with a rotating seat 611 and the prior distance adjustment with a rotating shaft 612 cooperate. When the prior distance adjustment with a rotating seat 611 rotates, it rotates around the prior distance adjustment with a rotating shaft 612.

[0109] An example of the prior pitch adjustment driver is Figure 3 、 5 7 shows a driving cylinder 621 for prior distance adjustment, the movable end of which cooperates with the prior distance adjustment rotary seat 611 to drive the prior distance adjustment rotary seat 611 to rotate around the prior distance adjustment shaft 612 within a preset angle range.

[0110] Rear distance adjustment assembly

[0111] The rear distance adjustment component cooperates with the rear first rotating rolling member or the rear second rotating rolling member. The rear distance adjustment component includes a rear distance adjustment arm and a rear distance adjustment driver. The rear distance adjustment arm has the function of rotating under the drive of the rear distance adjustment driver. The rear first rotating rolling member or the rear second rotating rolling member can be arranged on the rear distance adjustment arm. When the rear distance adjustment arm rotates, the rear first rotating rolling member or the rear second rotating rolling member provided thereon also moves at the same time, thereby changing the distance between the rear first rotating rolling member and the rear second rotating rolling member.

[0112] An example of a rear distance adjustment arm is Figure 3 、 5 7, is a seat-type structure for adjusting the distance with a rotating seat 711, the rear distance adjusting with a rotating seat 711 and the rear distance adjusting with a rotating shaft 712 cooperate. When the rear distance adjusting with a rotating seat 711 rotates, it rotates around the rear distance adjusting with a rotating shaft 712.

[0113] An example of a post-adjustment actuator is Figure 3 、 5 7 shows a driving cylinder 721 for rear distance adjustment, the movable end of which cooperates with the rear distance adjustment rotary seat 711 to drive the rear distance adjustment rotary seat 711 to rotate around the rear distance adjustment shaft 712 within a preset angle range.

[0114] Another embodiment of the present invention, in addition to the above embodiments, further includes a first manual operation component and / or a second manual operation component.

[0115] The preceding manual operation component and the following manual operation component respectively perform targeted manual operations (such as maintenance, observation, etc.) on the preceding rolling component and the following rolling component.

[0116] Prior manual operation components

[0117] An example of the prior manual operation component includes a prior manual operation port 811 , a prior manual operation door 812 , and a prior manual observation window 813 provided on the prior manual operation door 812 .

[0118] The first manual operation opening 811 is opened on the housing 1 to correspond to the first crushing assembly. The first manual operation door 812 is hinged on the first manual operation opening 811 and can be opened and closed at the first manual operation opening 811.

[0119] The prior manual observation window 813 is provided on the prior manual operation door 812, and can observe the working status of the prior rolling assembly located inside the housing 1, so that the operator can grasp the working status of the prior rolling assembly in a timely manner.

[0120] Manual operation components

[0121] An example of the rear manual operation component includes a rear manual operation port 911 , a rear manual operation door 912 , and a rear manual observation window 913 provided on the rear manual operation door 912 .

[0122] The rear manual operation opening 911 is opened on the housing 1 to correspond to the rear crushing assembly. The rear manual operation door 912 is hinged on the rear manual operation opening 911 and can be opened and closed at the rear manual operation opening 911.

[0123] The rear manual observation window 913 is provided on the front manual operation door 912, and can observe the working status of the rear rolling assembly inside the housing 1, so that the operator can grasp the working status of the rear rolling assembly in time.

[0124] It should be noted that the above-mentioned embodiment of the utility model can be used not only for the shelling operation of millet, but also for the shelling operation of other types of grains that are smaller in volume than rice or wheat. Of course, it can also be applied to the shelling operation of larger-volume grains such as rice and wheat.

[0125] In the claims, the word "comprising" does not exclude other elements or steps; the word "a" or "an" does not exclude a plurality. In the claims, the use of ordinal numbers such as "first" and "second" to modify claim elements does not in itself mean that one claim element has priority, order, or temporal order of action execution over another claim element, but is merely for the purpose of distinguishing one claim element from another claim element. Although certain specific technical features are separately described in different dependent claims, this does not mean that these specific technical features cannot be used in combination. Various aspects of the present invention may be used alone, in combination, or in various arrangements not specifically discussed in the above embodiments, and their application is not limited to the details and arrangements of components described above or shown in the drawings. For example, multiple aspects described in one embodiment may be combined with multiple aspects described in other embodiments in any manner. Steps, functions, or features described in multiple modules or units may be performed or satisfied by a single module or unit. The steps of the method disclosed herein are not limited to being performed in any particular order, and it is possible to perform some or all of the steps in other orders. Any figure marks in the claims should not be construed as limiting the scope of the claims.

[0126] Although the present invention has been described in the form of drawings and examples, such description and explanation should be considered as illustrative or exemplary rather than restrictive. Those skilled in the art should appreciate that various modifications, additions and substitutions are possible without departing from the scope and spirit of the present invention disclosed in the appended claims.

Claims

1. A rice huller for shelling small grains, characterized in that: The rice huller is equipped with a feeding area and a rice hulling area in sequence according to the working direction, including: Drive assembly for rolling, including: at least one drive for crushing; The first rolling assembly is provided on the rice husking area and cooperates with the rolling drive assembly to roll the rice grains from the feeding area when in operation, and includes: The first rotating rolling element has a substantially circular cross section and rotates at a first linear speed during operation; and The first second rotary rolling member has a substantially circular cross section and cooperates with the first rotary rolling member to rotate at a first second linear speed during operation; The directions of the first linear velocity and the second linear velocity are opposite and different in magnitude. During operation, the grains from the feeding area enter from the relatively upper area between the first rotating rolling element and the second rotating rolling element, and exit from the relatively lower area between the first rotating rolling element and the second rotating rolling element, thereby rolling the grains from the feeding area for the first time. The rear rolling assembly is provided on the rice husking area and cooperates with the rolling drive assembly. When working, it is used to roll the rice grains that have been rolled for the first time and come out from the relatively lower area between the first rotating rolling member and the second rotating rolling member to achieve the second rolling, including: The first rear rotary rolling member rotates at the first rear linear speed during operation, and The second rear rotary rolling member cooperates with the first rear rotary rolling member and rotates at a second rear linear speed during operation; In which, the directions of the first linear velocity and the second linear velocity are opposite and different in magnitude. During operation, the grains that have been rolled for the first time come out from the relatively lower area between the rotating first rotary rolling part and the rotating second rotary rolling part, enter from the relatively upper area between the rotating first rotary rolling part and the rotating second rotary rolling part, and exit from the relatively lower area between the rotating first rotary rolling part and the rotating second rotary rolling part, so as to realize the second rolling.

2. The rice huller according to claim 1, characterized in that: The operating power required to drive the preceding rolling assembly is greater than the operating power required to drive the following rolling assembly.

3. The rice huller according to claim 2, characterized in that: There are multiple roller drivers, at least one of which is directly or indirectly driven by the preceding roller component, and at least one of which is driven by the following roller component; The sum of the working powers of all the rolling drivers that cooperate with the preceding rolling assembly is 1 to 1.5 times the sum of the working powers of all the rolling drivers that cooperate with the succeeding rolling assembly.

4. The rice huller according to claim 2, characterized in that: The number of the rolling driver is single, and it is directly or indirectly driven and cooperated with the preceding rolling assembly and the following rolling assembly at the same time; The working power output by the rolling driver to drive the preceding rolling assembly is 1 to 1.5 times the working power output by the driver to drive the following rolling assembly.

5. The rice huller according to any one of claims 1 to 4, characterized in that: Also includes: At least one guide member is provided between the relatively lower area between the preceding first rotating rolling member and the preceding second rotating rolling member and the relatively upper area between the following first rotating rolling member and the following second rotating rolling member. When in operation, it is used to guide the grains that have been rolled for the first time and come out from the relatively lower area between the preceding first rotating rolling member and the preceding second rotating rolling member to the relatively upper area between the following first rotating rolling member and the following second rotating rolling member.

6. The rice huller according to any one of claims 1 to 4, characterized in that: The present invention also includes a first distance adjustment component, which cooperates with the first first rotating rolling member or the second first rotating rolling member, and the first distance adjustment component includes: The first distance adjustment rotating arm is provided for the first rotating rolling member or the second rotating rolling member; and The driver for prior distance adjustment cooperates with the prior distance adjustment rotating arm and is used to drive the prior distance adjustment rotating arm to rotate and move so as to adjust the distance between a prior rotational rolling member provided on the prior distance adjustment rotating arm and another prior rotational rolling member which is not provided on the prior distance adjustment rotating arm and is fixed in position and cooperates with the prior rotational rolling member for rolling.

7. The rice huller according to claim 6, characterized in that: The invention also includes a rear distance adjustment component, which cooperates with the rear first rotating rolling member or the rear second rotating rolling member, and the rear distance adjustment component includes: A rear distance adjustment rotating arm is provided for the first rear rotating rolling member or the second rear rotating rolling member; and The rear distance adjustment driver cooperates with the rear distance adjustment arm to drive the rear distance adjustment arm to rotate and move so as to adjust the distance between a rear rotary rolling member provided on the rear distance adjustment arm and another rear rotary rolling member that is not provided on the rear distance adjustment arm and is fixed in position and cooperates with the rear rotary rolling member to perform rolling.

8. The rice huller according to any one of claims 1 to 4, characterized in that: The invention also includes a rear distance adjustment component, which cooperates with the rear first rotating rolling member or the rear second rotating rolling member, and the rear distance adjustment component includes: A rear distance adjustment rotating arm is provided for the first rear rotating rolling member or the second rear rotating rolling member; and The rear distance adjustment driver cooperates with the rear distance adjustment arm to drive the rear distance adjustment arm to rotate and move so as to adjust the distance between a rear rotary rolling member provided on the rear distance adjustment arm and another rear rotary rolling member that is not provided on the rear distance adjustment arm and is fixed in position and cooperates with the rear rotary rolling member to perform rolling.

9. The rice huller according to any one of claims 1 to 4, characterized in that: Also included are a prior manually operated component and a subsequent manually operated component; The prior manual operation components include: A previous manual operation port is provided corresponding to the previous rolling assembly; and A first manual operation door is hinged to the first manual operation opening and can be opened and closed on the first manual operation opening; The post-manual operation component includes: A rear manual operation port is provided corresponding to the rear rolling assembly; and The rear manual operation door is hinged on the rear manual operation opening and can be opened and closed on the rear manual operation opening.

10. The rice huller according to claim 9, characterized in that: The prior manual operation assembly further includes a prior manual observation window provided on the prior manual operation door; The rear manual operation component also includes a rear manual observation window, which is arranged on the rear manual operation door.

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