Nail-embedded grinding roller structure of sand making machine

Abstract

The utility model discloses a sand making machine embedded nail grinding roller structure which comprises a roller sleeve and first column nails, the cross section of each first column nail is round, a plurality of rows of first column nails distributed in the circumferential direction of the roller sleeve are arranged on the surface of the roller sleeve, and the first column nails in the same row are distributed in the axial direction of the roller sleeve. The first column nail is embedded on the roller sleeve; for every two adjacent first column nails in the same row, the depth of one first column nail embedded into the roller sleeve is larger than the depth of the other first column nail embedded into the roller sleeve, the first column nail with the large embedding depth is called as a deeply-embedded first column nail, and the first column nail with the small embedding depth is called as a shallowly-embedded first column nail. The utility model aims to provide the nail-embedded grinding roller structure of the sand making machine, which has the advantages that the roller skin is not easy to break, and the problem that the roller skin of the existing grinding roller embedded with the column nails is easy to break is solved.

Description

Technical Field

[0001] This utility model relates to the field of roller sand making machine technology, and in particular to a structure of a nailed crushing roller for a sand making machine. Background Technology

[0002] Roller sand making machines typically include fixed rollers and movable rollers. Material is fed from above the two rollers, continuously carried into the space between them by the squeezing rollers, and discharged from the bottom of the machine at an ideal particle size. The relative movement of the two rollers crushes stones into sand. Chinese patent document CN202021220681X, authorized and announced on April 13, 2021, entitled "A Double Roller Sand Making Machine," includes a frame, a first crushing roller, a second crushing roller, and a drive motor. A crushing channel is formed between the first and second crushing rollers. The first crushing roller is rotatably connected to the frame, and the drive motor is connected to the frame to drive the first crushing roller to rotate. The frame is provided with several support legs, each support leg including a base plate, a lifting plate, a top plate, and a column arranged sequentially from bottom to top. The base plate is provided with a positioning ring. To improve the crushing effect, studs are embedded in the roller sleeve (surface layer of the roller). The existing studs are embedded to the same depth, so the roots of the studs are located on the same layer. When the roots of the studs are located on the same layer, the roller skin is prone to cracking during use. Utility Model Content

[0003] The present invention aims to provide a structure for a pinned crushing roller of a sand making machine with a roller skin that is not easily broken, thereby solving the problem that the roller skin of existing crushing rollers with pins is prone to breakage.

[0004] The above technical problems are solved by the following technical solution: a pinned roller structure for a sand making machine, comprising a roller sleeve and first pins, characterized in that the cross-section of the first pins is circular, and the surface of the roller sleeve is provided with several rows of the first pins distributed along the circumference of the roller sleeve, the first pins in the same row are distributed along the axial direction of the roller sleeve, and the first pins are embedded in the roller sleeve; among two adjacent first pins in the same row, the depth to which one first pin is embedded in the roller sleeve is greater than the depth to which the other first pin is embedded in the roller sleeve, the first pin with a greater embedding depth is called a deep-embedded first pin, and the first pin with a shallow embedding depth is called a shallow-embedded first pin. The different and staggered embedding depths of the first pins can prevent the roller skin from falling off due to the same layer (cross-section) of the root layer of the first pins being stressed. Because the roller is circular, the distance between the exposed parts of the first pins is small, and even smaller at the root, so the different depths and staggered stress make the roller skin base layer more durable.

[0005] Preferably, the first studs in two adjacent rows of first studs are staggered one-to-one along the circumference of the roller sleeve. While maintaining a constant spacing between adjacent rows of first studs, this arrangement allows for a larger distance between adjacent first studs, thus better preventing the roller skin from detaching.

[0006] Preferably, the line connecting the segments of the deep-set first studs that are sequentially adjacent along the circumference of the roller sleeve as endpoints is the reversal line, and the line connecting the segments of the shallow-set first studs that are sequentially adjacent along the circumference of the roller sleeve as endpoints is also the reversal line. This allows the roots of the deep-set and shallow-set first studs to be staggered, making the roller skin less likely to fall off.

[0007] Preferably, the distance between the first studs in two adjacent rows of first studs along the axial direction of the roller sleeve is half the distance between two adjacent first studs in the same row. In the two adjacent rows of first studs, the distance between the edge first studs of the row closer to the roller sleeve end face and the roller sleeve end face is less than half and more than one-quarter of the distance between two adjacent first studs in the same row. In the row of first studs farther from the roller sleeve end face, a second stud is inlaid on the outer side of the edge first studs. The second stud and the first stud in the row of first studs farther from the roller sleeve end face are located on the same straight line extending along the roller sleeve, and the diameter of the first stud is larger than the diameter of the second stud. This prevents stones located at the end of the roller sleeve from turning outwards and damaging the roller sleeve during the rolling process.

[0008] Preferably, the outer edge of the second stud and the outer edge of the first stud, which is adjacent to the second stud along the circumference of the roller sleeve, lie on the same plane perpendicular to the axis of the roller sleeve. This more reliably prevents stones from turning outward and damaging the end of the roller sleeve.

[0009] Preferably, the second stud has a circular cross-section, and its radius is half the radius of the first stud. This increases the distance between the second stud and the first stud in the adjacent row, better preventing the roller skin from falling off.

[0010] Preferably, each first stud, except for the first stud closest to the end of the roller sleeve, is surrounded by six first studs. This reduces the stress on the first studs during rolling and allows the first studs to more reliably grip and crush the material.

[0011] Preferably, when the first anchor bolt is a deep-set anchor bolt, only two of the six anchor bolts surrounding the first anchor bolt are deep-set anchor bolts; when the first anchor bolt is a shallow-set anchor bolt, only two of the six anchor bolts surrounding the first anchor bolt are shallow-set anchor bolts. This allows for better removal of the roof lining from the house.

[0012] Preferably, when the roller sleeve is unfolded into a plane, the six first studs surrounding the same first stud are located at the six corners of the same regular hexagon; in two adjacent rows of first studs, one row of studs at the outermost edge of one end of the roller is a deeply inlaid first stud, and the other row of studs at the outermost edge of one end of the roller is a shallowly inlaid first stud. This better prevents the roller skin from falling off.

[0013] Preferably, the hardness of the roller sleeve is greater than that of the first stud. When the first stud is inserted, it is deformed by compression and inserted together with the roller sleeve, thereby minimizing the deformation of the roller sleeve when the first stud is replaced. Minimal deformation ensures that the roller sleeve remains usable even after multiple replacements of the first stud.

[0014] The beneficial effects of this utility model are: the different depths and staggered intervals of the first studs can effectively prevent the roller skin from cracking during use. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present utility model;

[0016] Figure 2 for Figure 1 A-A sectional view.

[0017] In the diagram: 1. Roller sleeve; 3. First stud; 4. Deeply inlaid first stud; 5. Shallowly inlaid first stud; 6. Line connecting the line segments with the endpoints of the adjacent deeply inlaid first studs along the circumference of the roller sleeve; 7. Edge first stud among the row of first studs close to the end face of the roller sleeve; 8. Edge first stud among the row of first studs far from the end face of the roller sleeve; 9. Second stud; 10. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] See Figure 1 and Figure 2A pinned roller structure for a sand making machine includes a roller sleeve 1. The surface of the roller sleeve is provided with several rows of first pins 3 evenly distributed along the circumference of the roller sleeve. The cross-section of each first pin is circular. The first pins in the same row are evenly distributed along the axial direction of the roller sleeve and are embedded in the roller sleeve. For adjacent first pins in the same row, the depth to which one first pin is embedded in the roller sleeve is greater than the depth to which the other first pin is embedded in the roller sleeve; the first pin with the greater embedding depth is called a deep-embedded first pin 4, and the first pin with the shallower embedding depth is called a shallow-embedded first pin 5. The varying and staggered embedding depths of the first pins prevent the roller skin from detaching due to stress on the same layer (cross-section) at the root of the first pins. Because the roller is circular, the distance between the exposed parts of the first pins is relatively small, and even smaller at the root. Therefore, the varying depths and staggered stress distribution make the roller skin base layer more durable. The first pins in adjacent rows are staggered one-to-one along the axial direction of the roller sleeve. Line 6, connecting the line segments with the endpoints of the deeply inlaid first studs sequentially adjacent along the circumference of the roller sleeve, serves as a return line; line 7, connecting the line segments with the endpoints of the shallowly inlaid first studs sequentially adjacent along the circumference of the roller sleeve, also serves as a return line. The distance between the first studs in two adjacent rows of first studs and the roller sleeve's axial direction is half the distance between two adjacent first studs in the same row. In two adjacent rows of first studs, the distance between the edge first stud 8 (closer to the roller sleeve end face) and the roller sleeve end face is less than half and more than one-quarter of the distance between two adjacent first studs in the same row; the distance between the edge first stud 9 (farther from the roller sleeve end face) and the outer side of the edge first stud 9 is inlaid with a second stud 10. This second stud and the first stud in the row farther from the roller sleeve end face are located on the same straight line extending along the roller sleeve. The cross-section of the second stud is circular. The diameter of the first stud is larger than the diameter of the second stud. The radius of the second stud is half the radius of the first stud. The outer edge of the second stud and the outer edge of the first stud adjacent to the second stud along the circumference of the roller sleeve lie on the same plane perpendicular to the axis of the roller sleeve. Each first stud, except for the first stud closest to the end of the roller sleeve, is surrounded by six first studs. When the surrounded first stud is a deep-set stud, only two of the six first studs surrounding the surrounded first stud are deep-set studs; when the surrounded first stud is a shallow-set stud, only two of the six first studs surrounding the surrounded first stud are shallow-set studs. When the roller sleeve is unfolded into a plane, the six first studs surrounding the same first stud are located at the six corners of the same regular hexagon; in two adjacent rows of first studs, one row of studs located at the outermost edge of one end of the roller is a deep-set stud, and the other row of studs located at the outermost edge of one end of the roller is a shallow-set stud. The hardness of the roller sleeve is greater than the hardness of the first studs.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure of a pegged roller for a sand making machine, comprising a roller shell and first pegs, characterized in that, The cross section of the first stud is circular, the surface of the roller sleeve is provided with a plurality of rows of the first studs distributed along the circumferential direction of the roller sleeve, the first studs in the same row are distributed along the axial direction of the roller sleeve, and the first studs are inlaid in the roller sleeve.

2. The pegged roller structure for a sand making machine according to claim 1, wherein, The first studs in the adjacent two rows are staggered along the circumferential direction of the roller sleeve.

3. The pegged roller structure for a sand making machine according to claim 2, wherein, The connecting line of the line segments with the adjacent deep inlaid first studs as end points is the turning line, and the connecting line of the line segments with the adjacent shallow inlaid first studs as end points is the turning line.

4. The pegged roller structure of a sand making machine according to claim 2 or 3, characterized in that, The distance by which the first studs in the adjacent two rows are staggered along the axial direction of the roller sleeve is half of the distance between the adjacent two first studs in the same row; the distance from the edge first stud in the row of the edge first studs close to the end surface of the roller sleeve to the end surface of the roller sleeve is less than half and more than a quarter of the distance between the adjacent two first studs in the same row; the outer side of the edge first stud in the row of the edge first studs away from the end surface of the roller sleeve is inlaid with a second stud, and the second stud and the first stud in the row of the edge first studs away from the end surface of the roller sleeve are located on the same straight line extending along the roller sleeve, and the diameter of the first stud is greater than the diameter of the second stud.

5. The pegged roller structure for a sand making machine according to claim 4, wherein, The outer side edge of the second stud and the outer side of the first stud adjacent to the second stud along the circumferential direction of the roller sleeve are located on the same plane perpendicular to the axis of the roller sleeve.

6. The pegged roller structure for a sand making machine according to claim 4, wherein The cross section of the second stud is circular, and the radius of the second stud is half of the radius of the first stud.

7. The pegged roller structure of a sand making machine according to claim 1 or 2 or 3, characterized in that, Except for the first stud closest to the end of the roller sleeve, each first stud is surrounded by six first studs.

8. The pegged roller structure for a sand making machine according to claim 7, wherein, When the surrounded first stud is a deep inlaid first stud, only two of the six first studs surrounding the surrounded first stud are deep inlaid first studs; when the surrounded first stud is a shallow inlaid first stud, only two of the six first studs surrounding the surrounded first stud are shallow inlaid first studs.

9. The pegged roller structure for a sand making machine according to claim 8, wherein, When the roller sleeve is unfolded into a plane, the six first studs surrounding the same first stud are located at the six corners of the same regular hexagon; the first studs at the most edge of one end of the roller sleeve in the adjacent two rows are a deep inlaid first stud and a shallow inlaid first stud, respectively.

10. The pegged roller structure of a sand making machine according to claim 1 or 2 or 3, characterized in that, The hardness of the roller sleeve is greater than the hardness of the first stud.

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