Diamond wire saw capable of enhancing fixation of inner holes of beads and beads of diamond wire saw

Abstract

The utility model discloses a diamond string bead capable of enhancing the fixation of the inner hole of the string bead and a string bead thereof, the diamond string bead comprises a base body and a working layer, the working layer is annularly arranged on the outer peripheral surface of the base body, the base body is provided with the inner hole used for penetrating and sleeving a steel wire rope, the inner hole penetrates through the two sides of the base body along the axial direction, and the working layer is arranged on the working layer. And the inner hole is provided with two internal threads with opposite screwing directions. When the steel wire rope penetrates through the inner hole of the bead string, the two internal threads with opposite screwing directions can be tightly combined with the external threads on the steel wire rope to form an effect similar to occlusion, so that the fixing effect between the bead string and the steel wire rope is remarkably improved. Due to the fact that the screwing directions of the threads in the inner hole are opposite, when the bead string is subjected to external rotating force, the two threads with different screwing directions can act, the bead string is effectively prevented from rotating around a spiral line, the bead string is prevented from rotating around the spiral line in the working process, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond wire saws, in particular to a diamond wire saw capable of enhancing the fixing of the inner hole of beads and its beads. Background Art

[0002] A diamond wire saw is a highly specialized cutting tool, widely used in fields such as stone processing, concrete cutting, ceramic and glass product processing, etc. A diamond wire saw is a flexible band-shaped tool composed of multiple strands of high-strength steel wires. A series of diamond beads are evenly strung on this steel wire at specific intervals. Its design and working principle are unique, combining the super-hard characteristics of diamonds and the convenience of flexible ropes, enabling it to perform efficient and precise cutting operations on various hard materials.

[0003] After retrieval, the existing diamond wire saws can refer to the following patents:

[0004] The Chinese patent with the authorization announcement number CN214982203U discloses a wire saw with a composite support layer, including a steel wire rope, an adhesive layer, a first protective layer, beads, and a second protective layer; the adhesive layer is coated on the surface of the steel wire rope and is connected to the surface of the steel wire rope; the first protective layer is coated on the surface of the adhesive layer and is connected to the adhesive layer; the beads are provided with a bead working layer, the beads are sleeved on the steel wire rope at intervals, and are connected to the first protective layer; the second protective layer is coated on the surface of the first protective layer and is fused with the first protective layer, the second protective layer is connected to the beads and surrounds and coats the periphery of the bead working layer. Among them, the beads further include a bead matrix, the beads are sleeved outside the steel wire rope through the bead matrix, and the bead matrix is connected to the bead working layer, the first protective layer, and the second protective layer.

[0005] The existing diamond wire saws have the following defects:

[0006] Please refer to Figure 1 , the matrix of the diamond bead 1 is sleeved with the steel wire rope through the inner hole in the center. The inner hole 11 is usually processed with an internal thread 111 by tapping in a single direction at a time. The bonding strength between the injection glue and the inner hole of the bead steel body in this structure of the inner hole is limited during the injection molding of the wire saw, which easily causes the bead to rotate around a helix during the working process, thereby leading to increased wear and premature failure. In addition, the rotating beads will also reduce the cutting accuracy and service life of the wire saw, increase the maintenance cost and replacement frequency. Summary of the Utility Model

[0007] Therefore, it is necessary to provide a diamond wire saw capable of enhancing the fixing of the inner hole of beads and its beads to solve the problem of limited bonding strength between the inner hole of the existing diamond beads and the injection glue.

[0008] To achieve the above object, this embodiment provides a diamond bead capable of enhancing the fixation of the inner hole of the bead, including a matrix and a working layer. The working layer is annularly arranged on the outer peripheral surface of the matrix. The matrix is provided with an inner hole for sleeving a wire rope. The inner hole penetrates through both sides of the matrix along the axial direction, and the inner hole is provided with two internal threads with opposite helix directions.

[0009] Further, the two internal threads are respectively a left-handed thread and a right-handed thread. The left-handed thread is formed by tapping from the first end to the second end of the inner hole, and the right-handed thread is formed by tapping from the second end to the first end of the inner hole. The left-handed thread and the right-handed thread cross each other.

[0010] Further, the left-handed thread and the right-handed thread respectively occupy half of the depth of the inner hole.

[0011] Further, the left-handed thread and the right-handed thread respectively occupy the entire depth of the inner hole.

[0012] Further, the two internal threads have a spacing in the axial direction of the matrix.

[0013] Further, the nominal diameter of the internal thread is d, and 5.2 mm ≤ d ≤ 12 mm.

[0014] Further, the pitch of the internal thread is 0.5 mm.

[0015] To achieve the above object, this embodiment also provides a diamond wire saw capable of enhancing the fixation of the inner hole of the bead, including a wire rope and a plurality of diamond beads. The diamond beads are the diamond beads capable of enhancing the fixation of the inner hole of the bead described in any of the above embodiments. The plurality of diamond beads are sleeved on the wire rope at intervals, and the inner hole and the internal thread surround the wire rope.

[0016] Differing from the prior art, the above technical solution has the following beneficial effects:

[0017] When the wire rope passes through the inner hole of the bead, the two internal threads with opposite helix directions can be tightly combined with the external threads on the wire rope, forming an effect similar to "biting", thereby significantly improving the fixation effect between the bead and the wire rope. Since the helix directions of the threads in the inner hole are opposite, when the bead is subjected to an external rotational force, the two threads with different helix directions will act, thereby effectively preventing the bead from rotating around the helix, avoiding the bead rotating around the helix during work, and extending the service life. Description of the Drawings

[0018] Figure 1 It is a schematic cross-sectional view of the diamond bead described in the background art;

[0019] Figure 2Schematic cross-sectional view of the intersection of left-handed and right-handed threads in this embodiment;

[0020] Figure 3 Schematic cross-sectional view of the spacing between two internal threads in some embodiments;

[0021] Figure 4 Schematic cross-sectional view of the intersection of left-handed and right-handed threads in other embodiments, with each occupying the full depth of the inner hole;

[0022] Figure 5 Schematic cross-sectional view of the diamond wire saw in this embodiment.

[0023] Explanation of reference numerals in the drawings:

[0024] 1. Diamond beads; 11. Inner hole; 111. Internal thread;

[0025] 2. Diamond beads; 21. Working layer; 22. Substrate; 221. Inner hole; 222. Internal thread; 2221. Left-handed thread; 2222. Right-handed thread;

[0026] 3. Steel wire rope. Detailed implementation manners

[0027] To illustrate in detail the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects of this application, the following is a detailed description with reference to the specific embodiments listed and the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application, so they are only examples and cannot be used to limit the protection scope of this application.

[0028] Referring to "embodiments" herein means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The term "embodiment" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0029] Unless otherwise defined, the meanings of the technical terms used herein are the same as those commonly understood by those skilled in the technical field to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0030] In the description of the present application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that there can be three relationships. For example, A and / or B means: there is A, there is B, and there is both A and B at the same time. In addition, the character " / " in this text generally represents an "or" logical relationship between the associated objects before and after.

[0031] In the present application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationship between these entities or operations.

[0032] Without further limitation, in the present application, the use of "comprising", "including", "having", or other similar expressions in a statement is intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the recited elements. Thus, a process, method, or product including a series of elements may include not only those recited elements, but also other elements not explicitly listed, or elements inherent to such process, method, or product.

[0033] Similar to the understanding in the "Examination Guidelines", in the present application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the recited number; expressions such as "above", "below", "within", etc. are understood to include the recited number. In addition, in the description of the embodiments of the present application, the meaning of "a plurality of" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.

[0034] In the description of the embodiments of the present application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings. It is only for the convenience of describing the specific embodiments of the present application or facilitating the understanding of the reader, rather than indicating or implying that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0035] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, terms such as "installation", "connection", "linkage", "fixation", "setting", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0036] Please refer to Figures 2 to 5 , this embodiment provides a diamond bead capable of enhancing the fixation of the inner hole of the bead, including a matrix 22 and a working layer 21. The working layer 21 is disposed around the outer peripheral surface of the matrix 22. The matrix 22 is provided with an inner hole 221 for sleeving a wire rope 3. The inner hole 221 penetrates through both sides of the matrix 22 along the axial direction. The inner hole 221 is provided with two internal threads 222 with opposite helix directions, one of which is a right-handed thread 2222 and the other is a left-handed thread 2221.

[0037] The existing wire rope has a spiral structure, which refers to a spiral wire bundle formed by twisting steel wires that meet the requirements of mechanical properties and geometric dimensions together according to certain rules. It can be formed by first twisting multiple layers of steel wires into strands, and then taking the rope core as the center, and twisting a certain number of strands into a spiral rope.

[0038] When the wire rope 3 passes through the inner hole 221 of the bead, the two internal threads 222 with opposite helix directions can be tightly combined with the external thread on the wire rope 3, forming an effect similar to "biting", thereby significantly improving the fixation effect between the bead and the wire rope 3. Since the thread helix directions in the inner hole 221 are opposite, when the bead is subjected to an external rotational force, the two threads with different helix directions will act, thereby effectively preventing the bead from rotating around the helix and avoiding the bead rotating around the helix during work, extending the service life.

[0039] Please refer to Figure 2 , in this embodiment, the two internal threads 222 are respectively a left-handed thread 2221 and a right-handed thread 2222. The left-handed thread 2221 is formed by tapping from the first end to the second end of the inner hole 221, and the right-handed thread 2222 is formed by tapping from the second end to the first end of the inner hole 221. The left-handed thread 2221 and the right-handed thread 2222 cross. Such a structure has a larger contact area, enhances the friction force, and makes the injection material bite more tightly and firmly with the inner hole 221.

[0040] It should be noted that the left-handed thread 2221 and the right-handed thread 2222 are made by performing two tapping operations on the inner hole 221, with the tapping direction being opposite each time. The left internal thread 222 taps from the first end of the inner hole 221 to the other end, while the right internal thread 222 taps from the other end of the inner hole 221 to the first end. In this way, the two threads are alternately distributed in the inner hole 221, forming a continuous double-thread structure. Among them, parameters such as the thread depth and pitch of the two tapping operations need to be precisely controlled.

[0041] Please refer to Figure 3 , in some embodiments, the two internal threads 222 have a spacing in the axial direction of the base body 22, that is, the left-handed thread 2221 and the right-handed thread 2222 do not contact. Specifically, the inner hole 221 of the base body 22 is divided into two sections. The first section of the internal thread 222 is the right-handed thread 2222, and the second section of the internal thread 222 is the left-handed thread 2221, and they are independent of each other.

[0042] Please refer to Figure 2 , in this embodiment, the left-handed thread 2221 and the right-handed thread 2222 respectively occupy half of the depth of the inner hole 221, and such a structure is easy to process. In some other embodiments, the left-handed thread 2221 and the right-handed thread 2222 can respectively occupy 3 / 4 depth, 3 / 5 depth, 4 / 7 depth, etc. of the inner hole 221, or the two respectively occupy different depths of the inner hole 221. For example, the left-handed thread 2221 occupies 3 / 5 depth of the inner hole 221, and the right-handed thread 2222 occupies 4 / 7 depth of the inner hole 221.

[0043] Please refer to Figure 4 , in other embodiments, the left-handed thread 2221 and the right-handed thread 2222 respectively occupy the entire depth of the inner hole 221. Within the entire depth range of the inner hole 221, the two threads are alternately distributed, forming a continuous double-thread structure, and such a structure maximizes the contact area. The net-like surface formed by two-way tapping can increase the surface roughness and friction of the inner hole 221, which helps the injection material and the inner hole 221 of the bead steel body to form a more firm cross-occlusion during glue injection, thereby enhancing the firm positioning effect of the product.

[0044] In this embodiment, the base body 22 is generally a hollow cylindrical shape. The inner diameter of the base body 22 is 5.2 mm (length unit, millimeter), the outer diameter is 12 mm, and the nominal diameter of the internal thread 222 is d, where 5.2 mm ≤ d ≤ 12 mm, and such dimensions are suitable for most specifications of the wire rope 3.

[0045] In this embodiment, the pitch of the internal thread 222 is 0.5 mm.

[0046] Please refer to Figure 5, this embodiment also provides a diamond wire saw that can enhance the fixation of the inner hole 221 of the bead. It includes a wire rope 3 and multiple diamond beads 1. The diamond bead 1 is the diamond wire saw that can enhance the fixation of the inner hole 221 of the bead described in any of the above embodiments, and the structure is as Figures 2 to 4 shown. Multiple diamond beads 1 are sleeved on the wire rope 3 at intervals, and the inner hole 221 and the internal thread 222 surround the wire rope 3.

[0047] Here, the manufacturing method of the diamond wire saw is described:

[0048] The outer diameter of the bead matrix is 12 mm, the inner hole is 5.2 mm, the outer diameter of the wire rope is 4.9 mm, and the distance between adjacent two diamond beads is 25 mm. For the diamond bead blank prepared by hot pressing, electroplating or brazing with an unprocessed inner hole, first drill or ream the hole to 5.2 mm on a machine tool, then transfer it to a tapping machine and use a left-handed M5.5*0.5 tap to tap half of the depth (total tapping depth / partial tapping depth), and then transfer it to another tapping machine to use a right-handed M5.5*0.5 / M6*1 tap to tap half of the depth (total tapping depth / partial tapping depth) from the other end of the bead. After degreasing, sandblasting and cleaning the processed beads, and spraying a layer of adhesive on the inner and outer surfaces and drying, thread them on the outside of a 4.9 mm diameter wire rope at a quantity of 40 teeth / meter, and place them in a glue injection mold for glue injection curing to form a bead wire saw.

[0049] This application is specifically an innovative design for the inner hole structure of the wire saw bead. It aims to improve the inner hole processing method by changing from the traditional single-direction tapping in one direction to tapping in two directions respectively, so that the threads in the two directions cross, thereby forming a knurling effect on the inner hole surface, enhancing the fixation effect between the bead and the wire rope, strengthening the stability of the bead during the use of the wire saw, and avoiding wear and falling off caused by the rotation of the bead.

[0050] This application has the following beneficial effects:

[0051] (1) Significantly improve the fixation effect between the wire saw bead and the wire rope, avoid the bead rotating around the helix during work, and extend the service life of the wire saw.

[0052] (2) Enhance the cutting accuracy and stability of the wire saw, and improve the processing efficiency and quality.

[0053] (3) Reduce the maintenance cost and replacement frequency, and lower the overall manufacturing cost.

[0054] It should be noted that although the above embodiments have been described in this text, it does not thereby limit the patent protection scope of the present utility model. Therefore, based on the innovative concept of the present utility model, any changes and modifications made to the embodiments described in this text, or equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, and directly or indirectly applying the above technical solutions to other related technical fields, are all included within the patent protection scope of the present utility model.

Claims

1. A diamond bead capable of enhancing the fixation of the inner hole of the bead, comprising a substrate and a working layer, the working layer being annularly arranged on the outer peripheral surface of the substrate, the substrate being provided with an inner hole for sleeving a steel wire rope, the inner hole penetrating through both sides of the substrate along the axial direction, and characterized in that, The inner hole is provided with two internal threads with opposite helix directions.

2. The diamond beads according to claim 1, characterized in that, The two internal threads are respectively a left-handed thread and a right-handed thread. The left-handed thread is tapped from the first end to the second end of the inner hole, and the right-handed thread is tapped from the second end to the first end of the inner hole. The left-handed thread and the right-handed thread cross each other.

3. The diamond beads according to claim 2, wherein The left-handed thread and the right-handed thread respectively occupy half of the depth of the inner hole.

4. The diamond beads according to claim 2, characterized in that, The left-handed thread and the right-handed thread respectively occupy the entire depth of the inner hole.

5. The diamond beads according to claim 1, characterized in that, The two internal threads have a spacing in the axial direction of the base body.

6. The diamond beads according to any one of claims 1 to 5, characterized in that, The nominal diameter of the internal thread is d, and 5.2 mm ≤ d ≤ 12 mm.

7. The diamond beads according to any one of claims 1 to 5, characterized in that, The pitch of the internal thread is 0.5 mm.

8. A diamond wire saw capable of enhancing the fixation of the inner hole of beads, characterized in that, It includes a wire rope and a plurality of diamond beads. The diamond beads are the diamond beads capable of enhancing the fixing of the inner hole of the beads as described in any one of claims 1 to 7. The plurality of diamond beads are sleeved on the wire rope at intervals, wherein the inner hole and the internal thread surround the wire rope.

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