A cane press roller and a press having the same

Abstract

The application discloses a sugarcane squeezing roller and a squeezing machine with the same, and belongs to the technical field of sugar-making equipment. The cylindrical roller body of the sugarcane squeezing roller is provided with a plurality of annular bosses in the axial direction, and the two sides of the annular bosses are respectively provided with variable-position cylinders with opposite variable-position coefficient values, and the adjacent annular bosses form annular juice discharge grooves. The squeezing machine with the above-mentioned sugarcane squeezing roller has the following characteristics: the axes of the plurality of sugarcane squeezing rollers are parallel to each other in space, the annular bosses of the adjacent sugarcane squeezing rollers are matched with the juice discharge grooves and have gaps, and the variable-position cylinders of the adjacent sugarcane squeezing rollers are engaged with each other. The structure of the application is reasonable, and can significantly improve the sugarcane holding, crushing and tearing capacity of the squeezing roller, improve the squeezing contact area and the stress uniformity, and reduce the probability of blockage.

Description

Technical Field

[0001] This invention belongs to the technical field of sugar production equipment, specifically relating to a sugarcane pressing roller and a press having the same. Background Technology

[0002] The sugarcane pressing and juice extraction process involves cutting sugarcane into small sections, then shredding them, and finally pressing and soaking them multiple times through a press to extract the juice. Traditional press rollers have a hollow shell structure.

[0003] During sugarcane pressing, a pair of pressing rollers have numerous interlocking "V"-shaped grooves on their surfaces. These grooves improve the sugarcane-holding capacity during pressing, break and tear the sugarcane, facilitate juice drainage, and increase the contact area between the rollers. However, this traditional method offers limited improvement in sugarcane-holding capacity, breaking and tearing action, and the increase in pressing area is still not significant, making it prone to problems such as blockage during pressing.

[0004] In addition, some methods involve randomly welding hard alloy spots onto the side surfaces of the "V"-shaped teeth on the roller surface. These spots interlock with the gaps between the "V"-shaped teeth and the spots on the other roller surface, further enhancing the sugarcane holding capacity and strengthening the crushing and tearing effects. However, during sugarcane pressing, some spots cannot interlock smoothly and instead directly squeeze or interfere with each other. This area experiences high pressure, while the sugarcane in the gaps around the spots experiences less pressure. Clearly, this method results in uneven stress during pressing, insufficient juice extraction, and fatigue damage and peeling of the hard alloy spots, reducing the roller shell's lifespan. Furthermore, this method increases the processing cost of the press roller, as welding the hard alloy spots is time-consuming and labor-intensive. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention aims to provide a sugarcane pressing roller and a press having the same, which has a reasonable structural design and can significantly improve the pressing roller's ability to hold, crush, and tear sugarcane, increase the pressing contact area and the uniformity of force, and reduce the probability of blockage.

[0006] This invention is achieved through the following technical solution:

[0007] This invention discloses a sugarcane pressing roller, comprising a cylindrical roller body, with several circumferential bosses along the axial direction of the roller body, and displacement cylindrical helical teeth with opposite displacement coefficients on both sides of the circumferential bosses, forming an annular juice discharge groove between adjacent circumferential bosses.

[0008] Preferably, the modified cylindrical helical tooth is based on the mid-face of the tooth width. One side of the mid-face is positively modified to the positively modified tooth profile end and the modification coefficient gradually increases. The other side of the mid-face is negatively modified to the negatively modified tooth profile end and the modification coefficient gradually increases.

[0009] More preferably, the displacement coefficient exhibits a uniform linear variation, and the displacement coefficient is -1.5 to +1.5.

[0010] Preferably, the diameter of the circumferential boss is equal to the diameter of the large end of the displaced cylindrical helical tooth.

[0011] Preferably, the tooth width of the displaced cylindrical helical teeth is no greater than 100 mm, and the width of the drainage groove is less than 30 mm.

[0012] Preferably, the circumferential boss and the drainage groove are shaped to match each other.

[0013] Preferably, several circumferential bosses are evenly distributed at equal intervals.

[0014] Preferably, the roller body, the displaced cylindrical helical teeth, and the circumferential boss are integrally formed.

[0015] Preferably, the module of the modified cylindrical helical tooth is 3 to 8 mm.

[0016] The present invention discloses a sugarcane pressing machine, which includes several sugarcane pressing rollers as described above. The axes of the sugarcane pressing rollers are parallel to each other in space. The circumferential bosses of adjacent sugarcane pressing rollers match each other with the juice discharge grooves and leave gaps. The displaced cylindrical helical teeth of adjacent sugarcane pressing rollers mesh with each other.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects:

[0018] This invention discloses a sugarcane pressing roller that effectively improves the stress distribution during the pressing process by utilizing the advantages of helical gear meshing. During pressing, the interlocking of the roller teeth significantly enhances the roller shell's ability to hold and crush sugarcane. Simultaneously, the smooth helical gear meshing process improves the uniformity of the pressing force distribution, ensuring a good juice yield. The additional axial force generated during meshing further tears the sugarcane. By constructing axially displaced helical gear teeth on the side of the traditional "V"-shaped tooth groove, the contact length in the circumferential direction of the pressing roller is significantly increased, greatly expanding the pressing area and improving the juice extraction efficiency of sugarcane pressing.

[0019] Furthermore, the modified cylindrical helical tooth takes the mid-face of the tooth width as the base point. One side of the mid-face is positively modified to the positively modified tooth profile end and the modification coefficient gradually increases. The other side of the mid-face is negatively modified to the negatively modified tooth profile end and the modification coefficient gradually increases. This structure forms an annular V-shaped drainage groove between the modified cylindrical helical tooth on one circumferential boss and the modified cylindrical helical tooth on another circumferential boss.

[0020] Furthermore, the displacement coefficient exhibits a uniform linear variation, ranging from -1.5 to +1.5. If the displacement coefficient is too small, the tooth root thickness at the negative displacement end of the gear will be too small, reducing its strength and load-bearing capacity. If the displacement coefficient is too large, it will lead to unstable meshing, causing jamming and affecting the pressing process.

[0021] Furthermore, the diameter of the circumferential boss is equal to the diameter of the large end of the modified cylindrical helical tooth, which is beneficial for the meshing of the two gears.

[0022] Furthermore, the tooth width of the modified cylindrical helical tooth is no more than 100mm, the width of the juice drainage groove is less than 30mm, the tooth surface is too wide, the difference between the large and small ends is huge, the gear forming and juice drainage are not good. Simply put, the teeth are not steep enough, and the juice drainage is not smooth.

[0023] Furthermore, the shapes of the circumferential boss and the juice discharge groove are matched with each other. When multiple press rollers are set, the circumferential boss and the juice discharge groove of the adjacent press rollers can be in a suitable working position, thereby improving the pressing effect.

[0024] Furthermore, several circumferential bosses are evenly distributed at equal intervals, ensuring that the sugarcane material is subjected to uniform stress in all areas.

[0025] Furthermore, the roller body, the displaced cylindrical helical teeth, and the circumferential boss are integrally formed, which simplifies manufacturing and processing, and results in high overall strength and long service life.

[0026] The sugarcane pressing machine disclosed in this invention, which has the above-mentioned sugarcane pressing rollers, can make the displaced cylindrical helical teeth on adjacent sugarcane pressing rollers mesh with each other by arranging several sugarcane pressing rollers in parallel in space, which significantly improves the sugarcane holding, crushing and tearing ability of the pressing rollers, and increases the pressing contact area and force uniformity; and the circumferential bosses of adjacent sugarcane pressing rollers match with the juice discharge grooves and leave gaps, which can make the bagasse and juice discharge in time and reduce the probability of blockage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the sugarcane pressing roller of the present invention;

[0028] Figure 2 This is a front view of the internal structure of the sugarcane pressing roller of the present invention;

[0029] Figure 3 for Figure 2 A magnified view of a portion of the image;

[0030] Figure 4 for Figure 2 AA section diagram;

[0031] Figure 5 for Figure 4 Enlarged view of a part

[0032] Figure 6This is a three-dimensional structural diagram of the sugarcane pressing roller of the present invention;

[0033] Figure 7 This is a partial three-dimensional structural diagram of the press of the present invention.

[0034] In the figure: 1. Displaced cylindrical helical tooth; 2. Drainage groove; 3. Circumferential boss; 101. Positive displacement tooth profile end; 102. Mid-surface; 103. Negative displacement tooth profile end. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. This description is intended to explain the invention and not to limit it.

[0036] like Figures 1-4 and Figure 6 The sugarcane pressing roller of the present invention includes a cylindrical roller body, a plurality of circumferential bosses 3 are provided along the axial direction of the roller body, and displacement cylindrical helical teeth 1 with opposite displacement coefficients are provided on both sides of the circumferential bosses 3, and an annular juice discharge groove 2 is formed between adjacent circumferential bosses 3.

[0037] The opposite values ​​of the displacement coefficients mean that the displacement coefficients are one positive and one negative, but the values ​​are equal. Usually, when they are positive, it is called positive displacement, and when they are negative, it is called negative displacement.

[0038] like Figure 5 In a preferred embodiment of the present invention, the modified cylindrical helical tooth 1 is based on the mid-face 102 of the tooth width. One side of the mid-face 102 is positively modified to the positively modified tooth profile end 101 with a gradually increasing modification coefficient, while the other side of the mid-face 102 is negatively modified to the negatively modified tooth profile end 103 with a gradually increasing modification coefficient. Preferably, the modification coefficient exhibits a uniform linear variation, and the modification coefficient is -1.5 to +1.5.

[0039] In a preferred embodiment of the present invention, the diameter of the circumferential boss 3 is equal to the diameter of the large end of the displaced cylindrical helical tooth 1.

[0040] In a preferred embodiment of the present invention, the tooth width of the modified cylindrical helical tooth 1 is not greater than 100 mm, and the width of the drain groove 2 is less than 30 mm.

[0041] In a preferred embodiment of the present invention, the circumferential boss 3 and the drainage groove 2 are shaped to match each other. The shape of the end of the circumferential boss 3 can have a certain width or be relatively sharp, and the angles on both sides are equal.

[0042] In a preferred embodiment of the present invention, several circumferential bosses 3 are evenly distributed at equal intervals.

[0043] In a preferred embodiment of the present invention, the roller body, the modified cylindrical helical gear 1 and the circumferential boss 3 are integrally formed; in actual production, the casting process can be used to integrally cast and then process the juice discharging groove 2, while forming the circumferential boss 3, and then process the modified cylindrical helical gear 1 on both sides of the circumferential boss 3.

[0044] In a preferred embodiment of the present invention, the module of the modified cylindrical helical gear 1 is 3-8 mm.

[0045] For the sugarcane press disclosed in the present invention having the above-mentioned sugarcane press rolls, the axes of a plurality of sugarcane press rolls are parallel to each other in space, the circumferential bosses 3 and the juice discharging grooves 2 of adjacent sugarcane press rolls match each other and leave a gap, and the modified cylindrical helical gears 1 of adjacent sugarcane press rolls are meshed with each other.

[0046] The axes of a plurality of sugarcane press rolls are parallel to each other in space. Specifically, a plurality of sugarcane press rolls can be arranged in a straight line, or can be arranged in a three-dimensional "pin" shape, such as Figure 7 , and of course other spatial arrangement methods are also included, and are specifically designed according to the structure of the sugarcane press.

[0047] When the above-mentioned sugarcane press with the sugarcane press rolls arranged in a three-dimensional "pin" shape is working:

[0048] Such as Figure 7 , the cane material is fed between the top roll and the front roll for a first pressing, and after the first pressing, it is directly fed between the top roll and the rear roll for a second pressing. The three-roll sugarcane press presses the cane material continuously twice.

[0049] As described above, it is only a part of the embodiments of the present invention. Although some terms are used in the present invention, the possibility of using other terms is not excluded. These terms are only used for the convenience of describing and explaining the essence of the present invention, and interpreting them as any additional limitation is contrary to the spirit of the present invention. The above description is only to further illustrate the content of the present invention by way of examples for easier understanding, but it does not mean that the embodiments of the present invention are limited thereto. Any technical extension or re-creation made according to the present invention is protected by the present invention.

Claims

1. A cane crushing roller comprising a cylindrical roller body, characterised in that, A plurality of annular bosses (3) are arranged along the axial direction of the roller body, and opposite sides of the annular boss (3) are respectively provided with variable position cylinders (1) with opposite variable position coefficients, and annular juice discharge grooves (2) are formed between adjacent annular bosses (3); The variable position cylinder (1) takes the middle surface (102) of the tooth width as the base point, the middle surface (102) is positively variable and the variable position coefficient gradually increases from one side to the positive variable tooth profile end (101), and the middle surface (102) is negatively variable and the variable position coefficient gradually increases from the other side to the negative variable tooth profile end (103); The annular boss (3) and the juice discharge groove (2) are matched in shape.

2. A sugar cane crushing roller according to claim 1, characterised in that, The variable position coefficient is uniformly linearly changed, and the variable position coefficient is -1.5~+1.

5.

3. The sugar cane crushing roller according to claim 1, wherein, The diameter of the annular boss (3) is equal to the diameter of the large end of the variable position cylinder (1).

4. The sugar cane crushing roller according to claim 1, wherein, The tooth width of the variable position cylinder (1) is not greater than 100mm, and the width of the juice discharge groove (2) is less than 30mm.

5. The sugar cane crushing roller according to claim 1, wherein, The plurality of annular bosses (3) are evenly distributed at equal intervals.

6. The sugar cane crushing roller defined in claim 1, characterized in that, The roller body, the variable position cylinder (1) and the annular boss (3) are integrally formed.

7. The sugar cane crushing roller defined in claim 1, characterized in that, The modulus of the variable position cylinder (1) is 3~8mm.

8. A press machine characterized by A plurality of the sugar cane pressing rollers according to any one of claims 1-7 are arranged, the axes of the plurality of sugar cane pressing rollers are parallel in space, the annular boss (3) and the juice discharge groove (2) of adjacent sugar cane pressing rollers are matched and have a gap, and the variable position cylinders (1) of adjacent sugar cane pressing rollers are engaged with each other.

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