Rice huller with rice shelling function

Abstract

The utility model provides a kind of rice hulling machine with rice hulling function, it is related to the inside roller system field of rice hulling machine, including two wave rollers;Transmission assembly, including the driving roller and driven roller of opposite rotation, the meshing transmission of gear set is passed between driving roller and driven roller, driving roller and one of wave rollers synchronous rotation, driven roller and another wave roller synchronous rotation;Reciprocating movement component, including cylinder, annular groove and limit peg, cylinder and driven roller are fixed, annular groove is obliquely opened on cylinder, the shaft in roller body two and frame elastic coupling, limit peg fixed on frame extends into annular groove, under the synergistic effect of annular groove and limit peg, transmission rod one does rotation, while, roller body two can one side along the axial direction reciprocating linear movement, while, the other side can also rotate normally, let the clearance between wave crest and wave trough adjust collocation extrusion process, improve the residence time of grain in wave roller assembly while improving hulling efficiency.

Description

Technical Field

[0001] This utility model relates to the field of internal roller systems of rice hullers, and more particularly to a rice huller with rice hulling function. Background Technology

[0002] Traditional rice hullers use two rubber rollers rotating at different speeds to dehull the grains that fall between the rollers using shearing force. However, this design is extremely dependent on the speed difference. The grains must stay in the contact area between the two rollers for a sufficient amount of time; otherwise, the unhulled rate will be high. In addition, if the speed difference is too small, the dehulling rate will be too low; if the speed difference is too large, there will be too many broken grains. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a rice hulling machine with rice dehulling function. The technical problem to be solved by the present invention is: how to increase the residence time of rice grains in the rubber roller.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rice huller with rice hulling function, comprising a wave roller assembly, including two wave rollers with elastic surfaces, the crests and troughs of the two wave rollers being staggered and corresponding, the wave rollers being rotatably connected to the frame; a transmission assembly, including a driving roller and a driven roller with opposite rotation directions, the driving roller and the driven roller being driven by a gear set meshing transmission, the driving roller and one of the wave rollers rotating synchronously, the driven roller and the other wave roller rotating synchronously; a motor for driving the driving roller to rotate; a reciprocating motion assembly, including a column, an annular groove and a limiting pin, the column and the driven roller being fixed, the annular groove being inclinedly opened on the column, the rotating shaft inside the roller body being elastically coupled to the frame, the limiting pin fixed on the frame extending into the annular groove and sliding against the side edge of the annular groove.

[0005] In a preferred embodiment, the two wave rollers are roller body one and roller body two, which are fixed on corresponding rotating shafts. Both rotating shafts are connected to the frame, and the wave crests and troughs of roller body one and roller body two correspond to each other.

[0006] In a preferred embodiment, the transmission assembly includes a transmission rod one, a gear one, a transmission rod two, and a gear two. The transmission rod one and one of the wave rollers rotate synchronously. The gear one is fixed on the transmission rod one. The transmission rod two and the other wave roller rotate synchronously. The gear two is fixed on the transmission rod two. The gear one and the gear two mesh and drive each other. The transmission rod one is connected to the output shaft of the motor.

[0007] In a preferred embodiment, drive rod one and the wave roller are connected by an insert spline, and drive rod two and another wave roller are also connected by an insert spline.

[0008] In a preferred embodiment, the inclination height of the annular groove is one-third of the distance between two wave crests in the wave roller.

[0009] In a preferred embodiment, the thickness of gear two is greater than the inclination height of the annular groove.

[0010] In a preferred embodiment, an end head is elastically slidably connected to the end of the wave roller corresponding to the column, and the end head is rotatably connected to the frame via a bearing. An end head is elastically slidably connected to the end of the transmission rod two, and the end head is rotatably connected to the frame via a bearing.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this application, under the synergistic effect of the annular groove and the limiting pin, while the transmission rod rotates, the roller body can move back and forth linearly along the axial direction on one side, while the other side can also rotate normally. This allows the gap between the crests and troughs to be adjusted in conjunction with the extrusion process, thereby increasing the residence time of the grains in the wave roller assembly and improving the dehulling efficiency. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0014] Figure 1 This is a structural diagram of the rice huller of this utility model.

[0015] Figure 2 This is a structural diagram of the wave roller assembly in this utility model.

[0016] Figure 3 This is a structural diagram of the transmission component in this utility model.

[0017] Figure 4 This is a schematic diagram showing the positions of the wave peaks and troughs when the phase difference is zero in this utility model.

[0018] Figure 5 This is a schematic diagram showing the positions of the peaks and troughs when the phase difference is non-zero in this invention.

[0019] The attached figures are labeled as follows: 10, wave roller assembly; 11, roller body one; 12, roller body two; 13, rotating shaft; 20, transmission assembly; 21, transmission rod one; 22, gear one; 23, transmission rod two; 24, gear two; 30, motor; 40, reciprocating motion assembly; 41, column; 42, annular groove; 43, end; 44, limit pin. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] Example

[0022] Please see Figures 1-5 The rice huller described in this application includes a corrugated roller assembly 10, a transmission assembly 20, a motor 30, a reciprocating motion assembly 40, and other necessary components required for the normal operation of the rice huller.

[0023] The wave roller assembly 10 includes a first roller body 11, a second roller body 12, and a rotating shaft 13. The first roller body 11 and the second roller body 12 are fixed to the periphery of the two rotating shafts 13 respectively. In the use state, the crest of the first roller body 11 and the trough of the second roller body 12 are aligned. One side of the rotating shaft 13 is used to connect to the frame, and the other side is used to connect to the transmission assembly 20.

[0024] Roller body 11 and roller body 22 are made of elastic materials such as rubber and silicone.

[0025] The transmission assembly 20 includes a first transmission rod 21, a first gear 22, a second transmission rod 23, and a second gear 24. The first transmission rod 21 and the rotating shaft 13 inside the first roller 11 rotate synchronously via a spline. The first gear 22 is fixed on the first transmission rod 21. The second transmission rod 23 and the rotating shaft 13 inside the second roller 12 rotate synchronously via a spline. The second gear 24 is fixed on the second transmission rod 23. The first gear 22 and the second gear 24 mesh and transmit power. The first transmission rod 21 serves as the driving transmission rod and is used for transmission connection with the output end of the motor 30.

[0026] The spline connection described above is as follows: the ends of transmission rod 1 21 and transmission rod 23 are both fixed with splines, and the ends of the two rotating shafts 13 are both provided with spline grooves. The splines can be inserted into the spline grooves to maintain the synchronicity of the two during rotation. Since the spline connection method is existing technology, it will not be described in detail.

[0027] For example, the output shaft of motor 30 can be fixed to transmission rod 21 to drive transmission rod 21 to rotate at a constant speed.

[0028] For example, the output shaft of motor 30 is connected to the transmission rod 21 via a belt assembly. Since the means of driving shaft components to rotate by combining the output shaft of motor 30 with the belt assembly is existing technology, it will not be described in detail in this embodiment.

[0029] The improvement of the above structure lies in the wavy arc surface of the roller body 11 and roller body 2 12. By using the matching pattern between the peaks and troughs with the same shape but staggered positions, the contact area of ​​the entire roller body 11 and roller body 2 12 is increased.

[0030] In addition to the above, a reciprocating moving assembly 40 is also designed. The reciprocating moving assembly 40 includes a column 41, an annular groove 42, and an end 43. Since the second transmission rod 23 is the driven roller in the first transmission rod 21 and the second transmission rod 23, the column 41 is fixedly connected to the second transmission rod 23. The column 41 is inclinedly provided with an annular groove 42. The annular groove 42 has a distance difference along the axial direction of the rotating shaft 13. A limit pin 44 is fixed on the frame. The limit pin 44 extends into the annular groove 42 and is used to slide against the inner wall of the annular groove 42. In this way, when the second transmission rod 23 rotates, the limiting effect of the limit pin 44 will drive the entire second transmission rod 23 to drive the second roller 12 to reciprocate along the axial direction of the second roller 12.

[0031] To improve the above design, the thickness of gear 24 will be increased so that gear 22 can always mesh normally with gear 24 during the movement of gear 24 relative to transmission rod 23.

[0032] At the other end of the roller body 12, the rotating shaft 13 and the end 43 are elastically slidably connected, and the end 43 is rotatably connected to the frame through a bearing.

[0033] At the outer end of transmission rod 23, transmission rod 23 and end 43 are elastically slidably connected, and end 43 is rotatably connected to the frame through bearings.

[0034] In this way, under the synergistic action of the annular groove 42 and the limiting pin 44, while the transmission rod 21 rotates, the roller 12 can move back and forth linearly along the axial direction on one side, and can also rotate normally on the other side. This allows the pressure between the crests and troughs to move from the left to the middle, then to the right, then back to the middle, and then back to the left, repeating this process. Taking the right-side gap of the crests and troughs as an example, the gap changes from large to small and then back to large, which can wrap the grains that enter the gap, increasing the contact time while applying shearing force to the grain shell for thorough dehulling.

[0035] The height difference of the annular groove 42 is one-third of the distance between the two wave crests.

[0036] From a practical point of view, the existing technology involves adjusting the distance between two rubber rollers. Although this method can increase the residence time of the grains in the gap by narrowing the gap, the gap adjustment in this application also involves a squeezing process. Squeezing can break the husks along the radial direction, and rapid dehulling can be achieved by squeezing and differential peeling.

[0037] Because the length and moisture content of indica rice and japonica rice are different, the height difference of the annular groove 42 also needs to be selected according to the actual situation. This embodiment will not go into too much detail.

[0038] In summary, when this application is used, it is the same as a conventional rice huller. After the rice grains are fed into the feed inlet, the grains move into the wave roller assembly 10. The improved structure emphasized in this application is used to dehull the grains. After that, the grains and bran can fall together or fall separately with the help of the air separation system.

[0039] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A rice hulling machine with rice dehulling function, characterized in that, include: The wave roller assembly (10) includes two wave rollers with elastic surfaces, the crests and troughs on the two wave rollers are staggered and correspond to each other, and the wave rollers are rotatably connected to the frame; The transmission assembly (20) includes a driving roller and a driven roller with opposite rotation directions. The driving roller and the driven roller are driven by a gear set meshing. The driving roller and one of the wave rollers rotate synchronously, and the driven roller and the other wave roller rotate synchronously. The motor (30) is used to drive the drive roller to rotate; The reciprocating moving assembly (40) includes a column (41), an annular groove (42) and a limiting pin (44). The column (41) and the driven roller are fixed. The annular groove (42) is inclinedly opened on the column (41). The rotating shaft (13) in the roller body (12) is elastically coupled to the frame. The limiting pin (44) fixed on the frame extends into the annular groove (42) and slides against the side edge of the annular groove (42).

2. A rice hulling machine with rice dehulling function according to claim 1, characterized in that, The two wave rollers are roller body one (11) and roller body two (12), roller body one (11) and roller body two (12) are fixed on the corresponding rotating shaft (13), and the two rotating shafts (13) are connected to the frame. The wave crests and troughs of roller body one (11) and roller body two (12) correspond to each other.

3. A rice hulling machine with rice dehulling function according to claim 1, characterized in that, The transmission assembly (20) includes a transmission rod (21), a gear (22), a transmission rod (23), and a gear (24). The transmission rod (21) rotates synchronously with one of the wave rollers. The gear (22) is fixed on the transmission rod (21). The transmission rod (23) rotates synchronously with the other wave roller. The gear (24) is fixed on the transmission rod (23). The gear (22) and the gear (24) mesh and drive each other. The transmission rod (21) is connected to the output shaft of the motor (30).

4. A rice hulling machine with rice dehulling function according to claim 3, characterized in that, The first transmission rod (21) is connected to the wave roller by an insert spline, and the second transmission rod (23) is also connected to the other wave roller by an insert spline.

5. A rice hulling machine with rice dehulling function according to claim 3, characterized in that, The inclination height of the annular groove (42) is one-third of the distance between the two crests in the wave roller.

6. A rice hulling machine with rice dehulling function according to claim 5, characterized in that, The thickness of the second gear (24) is greater than the inclination height of the annular groove (42).

7. A rice hulling machine with rice dehulling function according to claim 1, characterized in that, An end (43) is elastically slidably connected to the end of the wave roller corresponding to the column (41). The end (43) is rotatably connected to the frame through a bearing. An end (43) is elastically slidably connected to the end of the transmission rod (23). The end (43) is rotatably connected to the frame through a bearing.

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