Grating, grating roller assembly and seed cotton cleaner

Abstract

The application discloses a lattice grid, a lattice grid roller assembly and a seed cotton cleaning machine, wherein the lattice grid comprises a first part and a second part, and a crossbeam between the first part and the second part for assisting in supporting the two parts; the first part and the second part are used for dividing the lattice into two groups in the lattice arrangement direction; the two ends of the first part, the two ends of the second part and the two ends of the crossbeam are fixed on the wall plate of the seed cotton cleaning machine. The lattice grid according to the application improves the overall rigidity of the lattice grid from a new technical route.

Description

Technical Field

[0001] This invention relates to a grid for a cotton cleaning machine, and further to a grid roller assembly having the grid, and a cotton cleaning machine equipped with the grid roller assembly, wherein the roller is a shorthand for a spiked roller. Background Technology

[0002] The seed cotton cleaning machine conforms to the national standard GB / T 19818-2005, also known as "Seed Cotton Cleaning Machine" (hereinafter referred to as the standard). This standard came into effect on September 1, 2005, nineteen years ago. Current technical requirements have changed significantly since the standard's inception, with the most notable change being the increase in machine width. Specifically, with the improvement of cotton processing capacity and efficiency in production lines, the width of seed cotton cleaning machines currently on the market (which can be understood as the distance between the left and right end plates or the length of the functional roller section) is generally 3200mm or more, resulting in an overall length of the grid strips exceeding 3200mm. Currently, seed cotton cleaning machines with a width reaching 6000mm have emerged.

[0003] The installation of the grid on a cotton cleaning machine typically involves fixing it at both ends. Specifically, the grid has end plates at both ends, which serve as mounting plates. These end plates are then fixed to the wall panel of the cotton cleaning machine using screws. As mentioned earlier, due to the increasing size of the cotton cleaning machine's spokes, the span between the two end plates also increases, resulting in insufficient overall rigidity of the grid. This leads to relatively significant bending deformation in the middle of the grid. Consequently, it is difficult to achieve a consistent fit between the grid and the roller along the grid's extension direction, usually requiring technical means to improve the fit. When this fit is outside the predetermined range, problems such as yarn breakage or seed breakage can easily occur.

[0004] A common solution is to arrange a set of intermediate support plates between the two end plates to provide auxiliary support for the grid bars. However, the current method of improving the overall stiffness of the grid by means of intermediate support plates has reached its limit and still cannot achieve a satisfactory level of overall stiffness. It is necessary to provide new grid reinforcement methods to further improve the overall stiffness of the grid.

[0005] To better understand the impact of grid stiffness on seed cotton cleaning, the principle of seed cotton cleaning will be explained first. For example, an inclined seed cotton cleaner often has six or more spiked rollers (hereinafter referred to as rollers). The grid and rollers are usually in one-to-one correspondence. For ease of description, the grid and its corresponding rollers are collectively referred to as the grid-roller assembly. In operation, the cotton inlet is located on the upper side of the lower end of the inclined direction of the inclined seed cotton cleaner. After the seed cotton enters, it is rolled down by the first roller at the lower end. The seed cotton is pushed and rubbed in the space between the roller and the grid, creating relative motion with the grid, i.e., frictional rubbing. Debris falls through the gaps in the grid. The size of the gap between the roller and the grid determines the strength of the rubbing and the pushing intensity of the spikes on the roller against the seed cotton. If the gap becomes smaller, the rubbing will be stronger and the pushing intensity will be greater, potentially causing the cotton seeds to break and producing more broken fibers. If the gap widens, the kneading and scouring intensity decreases, often failing to achieve the expected impurity removal efficiency. For the same batch of seed cotton, there must be an optimal gap. Once this optimal gap is determined at a certain point in the transverse direction of the seed cotton cleaner, the gap at other locations will inevitably differ due to the influence of flexural deformation. In other words, the existence of flexural deformation makes it difficult to adjust the consistency of the gap between the grid and the roller in the roller's axial direction.

[0006] However, it should be understood that due to differences in seed cotton quality and moisture absorption rate, the optimal gap is difficult to determine. Therefore, the gap is often sufficient to meet production requirements within a predetermined range. However, as mentioned earlier, the increased machine radius makes exceeding the gap limit a difficult technical problem to solve. This change in gap due to distance from the end plate is called axial variation (this axial direction corresponds to the roller's axial direction).

[0007] Another point to consider is that, in addition to corresponding one-to-one with the rollers, the grid bars on the grid are generally arranged in a given indexing arc array, meaning the grid bars need to be circumferentially arranged on a predetermined arc. The gaps corresponding to different grid bars at the same axial position will also be different. This difference is related not only to the overall rigidity of the grid but also to the position of the grid bars on the indexing arc. This variation in gap is called circumferential variation.

[0008] Both circumferential and axial variations are related to the overall stiffness of the grid. Therefore, given that there is little room for improvement in the use of the middle support plate, it is necessary to propose new methods to improve the overall stiffness of the grid in order to meet the current trend of increasing size of cotton cleaning machines. Summary of the Invention

[0009] In view of this, the present invention proposes a new technical approach to improve the stiffness of the grid, and proposes a grid. The present invention also provides a grid roller assembly equipped with the grid, and further provides a seed cotton cleaning machine equipped with the grid roller assembly.

[0010] According to a first aspect of the present invention, a grid is provided, including a first portion and a second portion, and a crossbeam between the first portion and the second portion for auxiliary support of the two portions;

[0011] The first and second sections are used to divide the grid strips into two groups in the grid strip arrangement direction;

[0012] The two ends of the first section, the two ends of the second section, and the two ends of the crossbeam are respectively fixed to the wall panels of the cotton cleaning machine.

[0013] Optionally, in the direction of beam extension, a set of first locking holes are distributed on the side of the beam adjacent to the first portion, and a second locking hole is distributed on the side of the beam adjacent to the second portion.

[0014] The first section has a first adjusting locking hole corresponding to the first locking hole; the second section has a second adjusting locking hole corresponding to the second locking hole.

[0015] One of the first locking holes and one of the first adjusting locking holes, and one of the second locking holes and one of the second adjusting locking holes, are first elongated holes used for adjusting the corresponding position of the first or second section in the radial direction of the roller.

[0016] Optionally, the distribution density of the first locking hole and the second locking hole is 2 to 6 holes / m.

[0017] Optionally, the first section is adjacent to the crossbeam on the first connecting plate, and the second section is adjacent to the crossbeam on the second connecting plate;

[0018] The first connecting plate and the second connecting plate are bent plates, including a mating plate surface and an outward-flaring plate surface. The mating plate surface is used to connect with the crossbeam, and the outward-flaring plate surface flares outward relative to the crossbeam to leave room for operation.

[0019] Accordingly, the first and second adjusting locking holes are opened on the corresponding mating plate surfaces; while the outer cantilever plate surface is provided with a force-applying structure or force-applying component.

[0020] Optionally, the force-applying structure is a hole or slot opened on the corresponding outward-facing plate surface;

[0021] The force-applying component is a protrusion, rod, or ring that protrudes from the outer surface of the plate.

[0022] Optionally, the force-applying structure or force-applying component corresponds one-to-one with the corresponding first or second adjusting locking hole.

[0023] Optionally, a first support beam is provided on the side of the first section away from the crossbeam;

[0024] The second section has a second support beam on the side away from the crossbeam.

[0025] Optionally, the first support beam and the second support beam are tubular shaft components.

[0026] Optionally, the tubular shaft component forms the pivot axis of the corresponding section and is pivotally connected to the wall panel.

[0027] Optionally, both the first and second portions have end plates and a set of intermediate support plates arranged in parallel between the respective end plates.

[0028] Optionally, the second section is 0.68 to 0.84 times the number of the first section in terms of the number of supported grid strips.

[0029] Optionally, the crossbeam is:

[0030] The first type of crossbeam is an isosceles trapezoidal crossbeam, wherein the intersection line of the extended surfaces of the two sides of the isosceles trapezoidal crossbeam is collinear with the axis of the roller; or

[0031] The second type of crossbeam includes an I-beam and a set of locking reinforcing ribs mounted on the I-beam on both sides; the intersection line of the extension surfaces of the corresponding mounting surfaces on the locking reinforcing ribs on both sides is collinear with the axis of the roller; the reinforcing ribs are used for the connection of the crossbeam with the first part and the second part respectively.

[0032] According to a second aspect of the present invention, a grid roller assembly is provided, comprising the grid described in the first aspect of the present invention.

[0033] According to a third aspect of the present invention, a seed cotton cleaning machine is provided, including the grid roller assembly described in the second aspect of the present invention.

[0034] It should be understood that the basic structure of a grid includes end plates, front and rear side plates, a set of grid strips, and a central support plate (also known as a partition). The front and rear side plates are used to connect the front and rear sides of the end plates to improve the overall rigidity; this is the inherent configuration of the grid. In the embodiments of the present invention, a grid includes two sections, equivalent to two sub-grids, which inevitably results in two additional side plates, thereby improving the overall rigidity at the first level. Furthermore, the two sections are fixedly mounted on a crossbeam in the middle, and the two ends of the crossbeam are fixedly mounted on the wall panels of the cotton cleaning machine. The crossbeam provides additional support to the grid in the middle of the grid strip arrangement direction, which can improve the overall rigidity of the grid. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the grid saw cylinder in one embodiment.

[0036] Figure 2 This is a schematic diagram of the wall panel structure in one embodiment.

[0037] Figure 3 This is a schematic diagram of the beam structure in one embodiment.

[0038] Figure 4 This is a schematic diagram of the cross-sectional structure of a beam in one embodiment.

[0039] Figure 5 This is a schematic diagram of the first sub-structure in one embodiment.

[0040] Figure 6 This is a schematic diagram of the second part structure in one embodiment.

[0041] In the diagram: 1. Wall panel, 2. Support beam, 3. First section, 4. Roller, 5. Roller center, 6. Second section.

[0042] 11. Fixing hole, 12. First adjustment mounting hole, 13. Roller mounting hole, 14. Center of roller mounting hole, 15. Viewing window, 16. Second adjustment mounting hole.

[0043] 21. Fixing plate, 22. Assembly hole, 23. I-beam, 24. First locking rib, 25. First locking hole, 26. Fillet weld, 27. Second locking hole, 28. Second locking rib.

[0044] 41. First locking hole, 32. First end plate, 33. First support tube, 34. First middle support plate, 35. First grid strip, 36. First connecting plate, 37. First adjusting locking hole, 38. First process hole.

[0045] 61. Second connecting plate, 62. Second grid strip, 63. Second middle support plate, 64. Second support tube, 65. Second end plate, 66. Second locking hole, 67. Second process hole, 68. Second adjusting locking hole. Detailed Implementation

[0046] In the field of seed cotton cleaning machine technology, it has a defined front, back, left, and right, such as Figure 1 The axial direction of the middle roller 4 is the left-right direction of the seed cotton cleaning machine, and the direction perpendicular to the axis of roller 4 in the horizontal plane is the front-back direction. Figure 1 The left and right sides shown represent the front and back of the cotton seed cleaning machine.

[0047] In the field of seed cotton cleaning machine technology, the left and right direction is also called the width direction or transverse direction. The machine spokes of the seed cotton cleaning machine are determined by, for example, the dimensions of the saw cylinder 4 in the width direction.

[0048] The front-to-back direction is also known as the longitudinal direction, the head-to-tail direction, or the length direction.

[0049] Ideally, the grid bars on the grid are distributed according to a predetermined indexing arc, and the center of the indexing arc falls on the roller center 5 of the roller 4. However, the actual working conditions cannot meet the ideal conditions. Therefore, in addition to processing errors and assembly errors, the deflection caused by the weight of the grid bars as mentioned above makes the distance between the grid bars and the nearest generatrix of the roller 4 and the saw cylinder 4 inconsistent. This inconsistency changes with the axial position of the grid bars and can be called axial variation.

[0050] And such Figure 1 As shown, when the axial positions of the corresponding parts of the grid strips at different positions on the segmented arc are consistent, the distance between each grid strip and the roller 4 is also different. The situation in which this distance changes with the axial position is called circumferential change. That is, there will be a difference in the amount of deflection of the grid strips at different circumferential positions on the pitch circle.

[0051] exist Figure 1 In the illustrated structure, the grid is divided into two cleaning function parts by the support beam 2 shown in the figure, which are referred to as the first part and the second part respectively. The support beam 2 is simply referred to as the crossbeam, and both ends of the support beam 2 are fixed to the wall panel 1 by bolts or screws.

[0052] In an embodiment of the present invention, the support beam 2 is pre-fixed in place, and the distance between the support beam 2 and the roller 4 is easily maintained under unloaded conditions. Under these conditions, the support beam 2, as an auxiliary support for the two sections, can effectively improve the overall rigidity of the grid to adapt to the axial changes.

[0053] Regarding the two sections, they do not need to be separated from the center of the grid. They are roughly located in the middle area, which can be determined by dividing the grid into front, middle and back sections in a 3:3:3 ratio on the pitch circle, with each section occupying one-third of the area, rather than being in the exact center.

[0054] Figure 1 In the middle section, the supporting beam 2, which constitutes the crossbeam, is roughly equivalent to the two sections in terms of radial dimensions. However, considering that the supporting beam 2 includes a centripetal end, which can be an arc-shaped structure or a flat structure, the arc-shaped structure is used to adapt to the indexing arc of the grid strip, while the flat structure is easier to manufacture. Furthermore, the centripetal end of the supporting beam 2 can be a solid structure, that is, without through holes in the radial direction.

[0055] However, in some embodiments, radial through holes may be opened at the centripetal end of the support beam 2.

[0056] It should be noted that it is preferable to take the centripetal end of the support beam 2 as the solid part. Under this condition, it is not necessary to consider whether the rest of the support beam 2 is suitable for passing through impurities. Therefore, the support beam 2 can have a relatively larger extension in the radial direction of the roller 4, without having to consider that it is roughly equivalent to the extension of the end plate of the grid in the radial direction of the saw cylinder 4. This gives the support beam 2 a relatively larger rigidity. In other words, compared with the case where the design basis of the middle support plate is more restricted, the design basis of the middle support beam 2 is relatively less restricted.

[0057] The key point of this embodiment of the invention is the setting of the support beam 2 and the connection method between the support beam 2 and the two parts. The presence of the support beam 2 allows for the adjustment of the axial adjustment of the two parts at different positions using the support beam 2 as the base, thereby reducing the amount of axial variation.

[0058] Therefore, the support beam 2, which constitutes the crossbeam, primarily serves as an auxiliary support, directly improving the overall rigidity of the grid. In a further preferred embodiment, the support beam 2 can also serve as a base for adjusting the gap between the two sections of the grid at different axial positions. In other words, based on the amount of deflection at different locations, the installation positions of the different sections on the support beam 2 can be adjusted separately, thereby making the overall gap between the grid and the roller 4 relatively controllable and ensuring consistency more easily.

[0059] The first section 3 and the second section 5 divide the grid strips on the grid into two groups along the grid strip arrangement direction, i.e., along the aforementioned indexing arc. This emphasis on grouping does not imply different spacing between strips in different groups. The two sections can have the same total number of strips as the previous single grid, or they can have 1 to 5 more strips. Furthermore, due to the influence of the grid's fit with the roller 4 in some seed cotton cleaning machines, and the space occupied by the support beam 2, the total number of strips in the two sections can be 1 to 3 fewer than the previous single grid.

[0060] In terms of fixing method, as mentioned above, the support beam 2 is first fixed to the wall panel. Since the support beam 2 is not currently under load, its positional relationship with the roller 4 is easy to determine.

[0061] Then, the two ends of the two parts are initially positioned on the two wall panels using, for example, screws, without tightening the screws used to lock the two parts. Then, the two parts are adjusted and fixed to, for example, the support beam 2, and finally the screws used to lock the two parts on the wall panels are tightened.

[0062] It should be noted that when the two sections of the grid are connected to the crossbeam, the crossbeam will also bear a load. The deformation of the crossbeam does not affect the adjustment of the two sections. The deformation of the crossbeam is fixed when it is under load. By adjusting the fixed position of the two sections of the grid on the crossbeam based on this deformation, the deflection of the corresponding position of the sections can be overcome.

[0063] In some specific examples, such as Figure 3 and Figure 4 In the illustrated structure, a set of first locking holes 25 are distributed on the side of the support beam 2 adjacent to the first segment 3, and a set of second locking holes 27 are distributed on the side adjacent to the second segment 6. The first locking holes 25 and the second locking holes 27 are preferably threaded holes to reduce assembly difficulty. However, in some embodiments, the first locking holes 25 and the second locking holes 27 can be plain holes, and they are elongated holes, in which case bolts are required for assembly.

[0064] Correspondingly, the first part 3 has a first adjusting locking hole 37 corresponding to the first locking hole 25; the second part 6 has a second adjusting locking hole 68 corresponding to the second locking hole 27.

[0065] from Figure 5 and Figure 6 As can be seen, both the first adjusting locking hole 37 and the second adjusting locking hole 68 are elongated holes, used to adjust the position of the first adjusting locking hole 37 and the second adjusting locking hole 68 in the radial direction of the roller 4. After adjustment, the screw used for, for example, the first locking hole 25 and the first adjusting locking hole 37 is tightened.

[0066] The first adjusting locking hole 37 and the second adjusting locking hole 68 are from Figure 5 and Figure 6 As can be seen, both are elongated holes, and their extension direction is preferably radial to that of roller 4. Therefore, for Figure 5 and Figure 6 The first connecting plate 36 included in the first part 3 and the second connecting plate 61 included in the second part 6 shown can be designed based on the position of the roller 4 and configured as radial plates extending radially in the roller 4. Then the extending direction of the first adjusting locking hole 37 and the second adjusting locking hole 68 is the radial direction of the roller 4.

[0067] As the two sides of the crossbeam that are fitted and mounted to the first connecting plate 36 and the second connecting plate 61, these two sides also fall on the radial surface of the roller 4. In other words, in the preferred embodiment, the two sides of the crossbeam should intersect at the center of the roller 4. Figure 1 There is a relatively clear display.

[0068] It should be noted that in the field of mechanics, equivalent surfaces are more universal, such as... Figure 3 and Figure 4 As shown in the figure, for example, there are ten first locking reinforcing ribs 24. These ten first locking reinforcing ribs 24 are separate from each other and are not a whole plate. However, under ideal conditions, each of these ten first locking reinforcing ribs 24 should have a surface that is in contact with the first connecting plate 36. The surfaces of these first locking reinforcing ribs 24 that are in contact with the first connecting plate 36 constitute an equivalent surface as a whole, which can also be called the side of the beam on this side.

[0069] Since the aforementioned first adjusting locking hole 37 and second adjusting locking hole 68 are both elongated holes extending radially in the roller 4, while the corresponding first locking hole 25 and second locking hole 27 are threaded holes, under these conditions, the position can be locked with a screw after the first adjusting locking hole 37 is adjusted to the current position.

[0070] Considering the relatively large overall length of the crossbeam, in order to better adjust and straighten the two sections, the first locking hole 25 and the second locking hole 27 should adopt a reasonable distribution density, so that the two sections can be adjusted and locked segment by segment.

[0071] Therefore, the distribution density of the first locking hole 25 and the second locking hole 27 is 2 to 6 holes / m. The distribution density of the two types of locking holes should not be too small, otherwise the difference in gaps between the two sections after straightening will still be relatively large; the distribution density should also not be too large, otherwise it will increase the assembly difficulty and is unnecessary.

[0072] Obviously, the distribution density refers to, for example, the distribution density of the first locking hole 25 in the extension direction of the support beam 2, that is, the transverse or width direction of the cotton cleaning machine.

[0073] As described above, the grid with first section 3 and second section 6 has two more side plates than the traditional grid, namely... Figure 5 The first connecting plate 36 shown is Figure 6 The second connecting plate 61 shown in the figure, even without considering other reinforcement methods, will increase the overall rigidity by adding these two side plates.

[0074] As mentioned above, for example, the first connecting plate 36 can be completely matched with the corresponding side of the crossbeam. It should be known that, for example, the first part 3, which is enclosed by the two first end plates 32 and the front and rear side plates (one of which is the first connecting plate 36 shown in the figure), has a cavity in the frame and has a relatively large operating space, which can meet the assembly between the first connecting plate 36 and the first locking reinforcing rib 24.

[0075] In some embodiments, to facilitate the application of force and thus improve the assembly between, for example, the first connecting plate 36 and the first locking reinforcing rib 24, the first connecting plate 36 is a bent plate, including a mating plate surface and an outward-flaring plate surface. The mating plate surface is used to connect with the crossbeam, and the outward-flaring plate surface flares outward relative to the crossbeam to provide operating space. (See details...) Figure 1 The lower part of the first connecting plate 36 of the first section 3 located on the left side of the support beam 2 flares outward relative to the lower part of the support beam 2, which facilitates the application of force when assembling the first section 3.

[0076] As mentioned earlier, before, for example, the first portion 3 is locked as a whole, the first end plates 32 at both ends are locked last. During this process, when adjusting the connection between, for example, the first adjusting locking hole 37 and the first locking hole 25, it is best to have a relatively stable state. Therefore, in Figure 5 and Figure 6 In the illustrated structure, for example, the outward-flaring portion of the first connecting plate 36, i.e., the outward-flaring plate surface, is provided with a first process hole 38 to facilitate the application of force by, for example, a pry bar, so as to facilitate the adjustment of the first section 3.

[0077] The above description of the first connecting plate 36 and its structure in the first part 3 also applies to the second part 6, and will not be repeated here.

[0078] In addition, other structures that can be used to connect the force-applying tool, such as grooves, protrusions, rods or rings protruding from the outer surface of the plate, can be used instead of the first process hole 38. They only need to correspond to the relevant tools, and will not be described in detail here.

[0079] exist Figure 5 As can be seen in the illustrated structure, the first process hole 38 constituting the force-applying structure corresponds one-to-one with the corresponding first adjustment locking hole 37, so as to facilitate the selection of the corresponding first process hole 38 for adjustment according to the current position. The corresponding configuration on the second part 6 is similar, and will not be described again here.

[0080] from Figure 5 and Figure 6 As can be seen in the illustrated structure, the first section 3 is provided with a first support pipe 33 on the side away from the crossbeam; while the second section is provided with a second support pipe 64 on the side away from the crossbeam. Since both support pipes are located at the ends of the grid in the front and rear directions, they do not affect the falling of impurities, but the two support pipes can provide additional support, which can help improve the overall rigidity of the grid.

[0081] As mentioned earlier, since both support pipes are located at the ends of the grid in the front and rear directions, they have little impact on the falling of impurities. In other words, they are also applicable to other types of components that can provide support, such as I-beams, channel beams, and H-beams, which can replace the support pipes. These will not be elaborated further here.

[0082] Using, for example, a support tube can be used to form a shaft. In other words, a swing shaft can be formed between the first support tube 33 and the wall panel. The first part 3 can be pre-installed on the wall panel through the first support tube 33, so that the first part 3 forms a swing frame. In the subsequent installation process, since the first support tube 33 provides early support, the difficulty of subsequent assembly will be reduced.

[0083] Although a new grid reinforcement method is used in the embodiments of the present invention, the use of traditional reinforcement methods is not excluded. It should be understood that the new reinforcement method does not conflict with the traditional reinforcement method. Accordingly, in Figure 5 and Figure 6 As can be seen, the first section has two parallel first end plates 32 and a set of first intermediate support plates 34 arranged in parallel between the corresponding two first end plates 32. Due to the presence of, for example, a first support tube 33, which is connected to the first type of support plate 34, the overall rigidity is improved. The description of the first section 3 in this paragraph also applies to the second section 6, and will not be repeated here.

[0084] exist Figure 1 As can be seen in the illustrated structure, the two sections are not the same size. This design mainly considers that the load-bearing methods of the two sections are slightly different. As a reasonable division, based on the number of grid bars supported, the second section 6 is 0.68 to 0.84 times that of the first section 3.

[0085] Regarding the selection of beam type Figure 1 , Figure 3 and Figure 4 In the illustrated structure, the cross-section of the beam is generally an isosceles trapezoidal structure. Therefore, in some embodiments, it can directly adopt a beam with a direct trapezoidal structure and is called an isosceles trapezoidal beam. Its left and right sides can have an integral plate structure. Correspondingly, the intersection line of the two waist-side extension surfaces of the isosceles trapezoidal beam is collinear with the axis of the roller.

[0086] The second type of beam includes the frame and accessories, such as... Figure 3 and Figure 4 In the illustrated structure, the frame is an I-beam 23. The I-beam 23 cannot provide left and right sides, but a set of locking reinforcing ribs is welded to each of its left and right sides, as shown in the figure as the first locking reinforcing rib 24 and the second locking reinforcing rib 28. The two sets of reinforcing ribs are fixed to the frame by welding, that is, to the I-beam 23 shown in the figure.

[0087] In some embodiments, each set of locking stiffeners may also be replaced by a side panel, which is also fixedly connected to, for example, the I-beam 23 by welding.

[0088] Accordingly, for example, the first locking hole 25 is provided on the first locking reinforcing rib 24, and the second locking reinforcing rib 28 is provided with the second locking hole 27.

[0089] Regarding wall panel 1 Figure 2 The holes on the wall panel shown for fixing the two sections of the grid strip are also elongated holes, such as... Figure 2 The first adjustment mounting hole 12 and the second adjustment mounting hole 16 shown are provided to facilitate the adjustment and installation of the two parts according to the site conditions.

[0090] In addition, such as Figure 2 As shown, the wall panel 1 is also provided with a viewing window 15 to facilitate observation of the situation inside the cotton cleaning machine.

Claims

1. A grid-like structure, characterized in that, It includes a first section and a second section, as well as a crossbeam between the first section and the second section for auxiliary support of the two sections; The first and second sections are used to divide the grid strips into two groups in the grid strip arrangement direction; The two ends of the first section, the two ends of the second section, and the two ends of the crossbeam are respectively fixed to the wall panel of the cotton cleaning machine; Along the extension direction of the crossbeam, a set of first locking holes are distributed on the side of the crossbeam adjacent to the first section, and a second locking hole is distributed on the side of the crossbeam adjacent to the second section. The first section has a first adjusting locking hole corresponding to the first locking hole; the second section has a second adjusting locking hole corresponding to the second locking hole. One of the first locking holes and one of the first adjusting locking holes, and one of the second locking holes and one of the second adjusting locking holes, are first elongated holes, used for adjusting the corresponding position of the first or second section in the radial direction of the roller; The first section has a first connecting plate on the side adjacent to the crossbeam, and the second section has a second connecting plate on the side adjacent to the crossbeam. The first connecting plate and the second connecting plate are bent plates, including a mating plate surface and an outward-flaring plate surface. The mating plate surface is used to connect with the crossbeam, and the outward-flaring plate surface flares outward relative to the crossbeam to leave room for operation. Accordingly, the first and second adjusting locking holes are opened on the corresponding mating plate surfaces; while the outer cantilever plate surface is provided with a force-applying structure or force-applying component.

2. The grid according to claim 1, characterized in that, The distribution density of the first locking hole and the second locking hole is 2 to 6 per m.

3. The grid according to claim 1, characterized in that, The force-applying structure is a hole or groove opened on the corresponding outer plate surface; The force-applying component is a protrusion, rod, or ring that protrudes from the outer surface of the plate.

4. The grid according to claim 1 or 3, characterized in that, The force-applying structure or force-applying component corresponds one-to-one with the corresponding first or second adjusting locking hole.

5. The grid according to claim 1, characterized in that, The first section has a first supporting beam on the side away from the crossbeam; The second section has a second support beam on the side away from the crossbeam.

6. The grid according to claim 5, characterized in that, The first and second support beams are tubular shaft components.

7. The grid according to claim 6, characterized in that, The tubular shaft component forms the pivot axis of the corresponding section and is pivotally connected to the wall panel.

8. The grid according to claim 1, characterized in that, Both the first and second sections have end plates and a set of intermediate support plates arranged in parallel between the respective end plates.

9. The grid according to claim 1, characterized in that, Based on the number of supporting grid strips, the second section is 0.68 to 0.84 times that of the first section.

10. The grid according to claim 1, characterized in that, The crossbeam is: The first type of crossbeam is an isosceles trapezoidal crossbeam, wherein the intersection line of the extended surfaces of the two sides of the isosceles trapezoidal crossbeam is collinear with the axis of the roller; or The second type of crossbeam includes an I-beam and a set of locking reinforcing ribs mounted on the I-beam on both sides; the intersection line of the extension surfaces of the corresponding mounting surfaces on the locking reinforcing ribs on both sides is collinear with the axis of the roller; the reinforcing ribs are used for the connection of the crossbeam with the first and second sections respectively.

11. A grid roller assembly, characterized in that, Includes the grid as described in any one of claims 1 to 10.

12. A seed cotton cleaning machine, characterized in that, Includes the grid roller assembly as described in claim 11.

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