Sand making machine grinding roller structure with prismatic nails

Abstract

The invention discloses a sand making machine grinding roller structure provided with prismatic nails, which comprises a roller sleeve, the surface of the roller sleeve is provided with a plurality of rows of prismatic nails distributed along the circumferential direction of the roller sleeve, the prismatic nails in the same row of prismatic nails are distributed along the axial direction of the roller sleeve, the prismatic nails are embedded on the roller sleeve, and the cross section of each prismatic nail is polygonal; for two adjacent column nails in the same row of column nails, the depth of one column nail embedded into the roller sleeve is larger than that of the other column nail embedded into the roller sleeve, the column nail with the large embedded depth is called as a deep embedded column nail, and the column nail with the small embedded depth is called as a shallow embedded column nail. According to the sand making machine grinding roller structure provided with the prism nails, the roller skin is not prone to breakage, and the problem that the roller skin of an existing grinding roller embedded with the prism nails is prone to breakage is solved.

Description

Technical Field

[0001] The invention relates to the technical field of roller sand making machines, in particular to a sand making machine rolling roller structure provided with prism nails. Background Art

[0002] A roller sand making machine usually includes a fixed roller and a movable roller. The material is fed from above the two rollers, continuously brought between the rollers by the squeezing roller, and discharged from the bottom of the machine with an ideal particle size. The stone is crushed into sand by the relative movement of the two rollers. In the Chinese patent literature, patent number CN202021220681X was authorized and announced on April 13, 2021. The application includes a vertical frame, a first rolling roller, a second rolling roller and a drive motor. A rolling channel is formed between the first rolling roller and the second rolling roller. The first rolling roller is rotatably connected to the frame, and the drive motor is connected to the frame. The drive motor is used to drive the first rolling roller to rotate. The frame is provided with a plurality of support legs, and the support legs include a bottom plate, a lifting plate, a top plate and a column arranged in sequence from bottom to top, and a positioning ring is provided on the bottom plate. In order to improve the stone crushing effect, column nails are embedded on the roller sleeve (surface layer of the rolling roller) of the rolling roller. The embedding depth of the existing column nails is the same, so the roots of the column nails are located on the same layer. The roots of the column nails are located on the same layer, which easily causes the roller skin to break during use. Summary of the invention

[0003] The invention aims to provide a sand making machine rolling roller structure with prism nails, the roller skin of which is not easy to break, thereby solving the problem that the roller skin of the existing rolling roller with prism nails is easy to break.

[0004] The above technical problems are solved by the following technical solutions: A sand making machine rolling roller structure with prismatic nails, including a roller sleeve, characterized in that the surface of the roller sleeve is provided with a plurality of rows of nails distributed along the circumference of the roller sleeve, the nails in the same row of nails are distributed along the axial direction of the roller sleeve, the nails are embedded in the roller sleeve, and the cross-section of the nails is polygonal; the depth of one nail embedded in the roller sleeve of two adjacent nails in the same row of nails is greater than the depth of the other nail embedded in the roller sleeve, the nail with a large embedding depth is called a deep embedding nail, and the nail with a shallow embedding depth is called a shallow embedding nail. The embedding depths of the nails are different and staggered, which can prevent the root layer of the nails from being stressed in the same layer (cross section) and causing the roller skin to fall off. Because the roller is round, the distance between the exposed parts of the nails is small, and even smaller at the root, so the stress is staggered with different depths, making the roller skin base more durable. The nails are set in a prismatic shape, which has a better crushing effect.

[0005] Preferably, the studs in two adjacent rows of studs are aligned one by one along the circumference of the roller sleeve, so that the studs can be more conveniently inserted into the roller sleeve.

[0006] Preferably, one of the two adjacent studs along the circumferential direction of the roller sleeve is a deep stud and the other is a shallow stud, which can more effectively prevent the roller skin from being damaged and falling off.

[0007] Preferably, the hardness of the roller sleeve is greater than that of the column nail. When the column nail is inserted, the column nail is squeezed and deformed and inserted together with the roller sleeve, so that the deformation of the roller sleeve caused by replacing the column nail is small. The small deformation makes the roller sleeve still usable when the column nail is replaced multiple times.

[0008] Preferably, the cross section of the column nail is a pentagon or a hexagon, which can take into account both the column nail strength and the crushing effect.

[0009] Preferably, the studs in the same row of studs are evenly distributed along the axial direction of the rolling sleeve.

[0010] Preferably, the spacing distances between any two adjacent rows of studs are equal, and the spacing between axially adjacent studs is equal to the spacing between circumferentially adjacent studs.

[0011] Preferably, the outer end surface of the column nail is a plane. The stone is squeezed for a long time, so that the effect of crushing the stone during sand making is better.

[0012] Preferably, a chamfered surface is provided between the outer end surface of the column nail and the side surface of the column nail, so that the column nail is not prone to curling.

[0013] Preferably, the inner end surface of the column pin is a spherical surface, which makes it more convenient to insert the column pin into the roller sleeve.

[0014] The beneficial effect of the present invention is that the column nails are embedded at different depths and at staggered intervals, which can effectively prevent the roller skin from cracking during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the present invention; Figure 2 for Figure 1 A local enlarged schematic diagram of point A; Figure 3 for Figure 1 Schematic diagram of the B-B section.

[0016] In the figure: roller sleeve 1, row column nails 2, deep column nails 3, shallow column nails 4, outer end faces of column nails 5, chamfered faces 6, inner end faces of column nails 7. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 and Figure 2 A sand making machine rolling roller structure with prismatic nails includes a roller sleeve 1. The surface of the roller sleeve is provided with a plurality of rows of nails 2 evenly distributed along the circumference of the roller sleeve, and the nails in the same row of nails are evenly distributed along the axial direction of the roller sleeve. The nails are embedded in the roller sleeve, and the cross-section of the nails is a regular hexagon; the depth of one nail embedded in the roller sleeve of two adjacent nails in the same row of nails is greater than the depth of the other nail embedded in the roller sleeve, and the nail with a large embedding depth is called a deep embedded nail 3, and the nail with a shallow embedding depth is called a shallow embedded nail 4. The embedding depths of the nails are different and staggered, which can prevent the root layer of the nails from being stressed in the same layer (cross section) and causing the roller skin to fall off. Because the roller is round, the distance between the exposed parts of the nails is small, and even smaller at the root, so the stress is staggered with different depths, making the roller skin base more durable. The nails are set in a prismatic shape, which has a better crushing effect.

[0019] The studs in two adjacent rows of studs are aligned one by one along the circumference of the roller sleeve. Two studs adjacent to each other along the circumference of the roller sleeve are one deep-set stud and the other shallow-set stud. The hardness of the roller sleeve is greater than the hardness of the studs. The spacing between axially adjacent studs is equal to the spacing between circumferentially adjacent studs. The outer end face 5 of the stud is a plane. A chamfered surface 6 is provided between the outer end face of the stud and the side face of the stud. The inner end face 7 of the stud is a spherical surface.

[0020] In another embodiment, the rest is the same as the present embodiment, but the column nail is a regular pentagonal prism.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand making machine rolling roller structure with prism nails, comprising a roller sleeve, characterized in that: The surface of the roller sleeve is provided with a plurality of rows of column nails distributed along the circumference of the roller sleeve, the column nails in the same row of column nails are distributed along the axial direction of the roller sleeve, the column nails are embedded in the roller sleeve, and the cross-section of the column nails is polygonal; for two adjacent column nails in the same row of column nails, the depth of one column nail embedded in the roller sleeve is greater than the depth of the other column nail embedded in the roller sleeve, the column nail with a large embedding depth is called a deep-embedded column nail, and the column nail with a shallow embedding depth is called a shallow-embedded column nail.

2. The sand making machine rolling roller structure with prism nails according to claim 1 is characterized in that: The studs in two adjacent rows of studs are aligned one by one along the circumferential direction of the roller sleeve.

3. The sand making machine rolling roller structure with prism nails according to claim 2 is characterized in that: Two column nails adjacent to each other along the circumference of the rolling sleeve are one deep-embedded column nail and the other shallow-embedded column nail.

4. The sand making machine rolling roller structure with prism nails according to claim 1, 2 or 3, characterized in that: The hardness of the roller sleeve is greater than the hardness of the column nail.

5. The sand making machine rolling roller structure with prism nails according to claim 1, 2 or 3, characterized in that: The cross section of the column nail is pentagonal or hexagonal.

6. The sand making machine rolling roller structure with prism nails according to claim 1, 2 or 3, characterized in that: The column nails in the same row of column nails are evenly distributed along the axial direction of the rolling sleeve.

7. The sand making machine rolling roller structure with prism nails according to claim 6 is characterized in that: The spacing between any two adjacent rows of column pins is equal, and the spacing between axially adjacent column pins is equal to the spacing between circumferentially adjacent column pins.

8. The sand making machine rolling roller structure with prism nails according to claim 1, 2 or 3, characterized in that: The outer end surface of the column nail is a plane.

9. The sand making machine rolling roller structure with prism nails according to claim 8, characterized in that: A chamfered surface is arranged between the outer end surface of the column nail and the side surface of the column nail.

10. The sand making machine rolling roller structure with prism nails according to claim 1, 2 or 3, characterized in that: The inner end surface of the column nail is a spherical surface.

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