Diamond wire saw and connector thereof

Abstract

The utility model discloses a diamond wire saw and a connector thereof, the diamond wire saw connector is in a hollow column shape, a center hole for a spiral steel wire rope to penetrate through is formed in the diamond wire saw connector, the center hole is provided with a concave spiral groove to be matched with the spiral steel wire rope, the spiral groove comprises a spiral groove channel, and the spiral groove channel is provided with a plurality of through holes. The number of the spiral channels is the same as the number of strands of the steel wire ropes. According to the technical scheme, the inner wall of the center hole is not in a simple straight cylinder shape any more, but is designed into the spiral groove matched with the spiral shape of the steel wire rope. Therefore, when the spiral steel wire rope penetrates into the central hole of the joint, the spiral steel wire rope and the central hole are matched in form. The spiral direction of the spiral groove is consistent with that of the steel wire rope, so that when extrusion force is applied, the steel wire rope can be effectively prevented from being sheared and damaged due to overlarge local stress in the traditional straight cylinder design, and the same clamping effect as that in the prior art can be realized with smaller extrusion force.

Description

Technical Field

[0001] The utility model relates to the technical field of diamond wire saws, in particular to a diamond wire saw and a joint thereof. Background Art

[0002] Diamond wire saw is a highly specialized cutting tool widely used in stone processing, concrete cutting, ceramic and glass processing, etc. Diamond wire saw is a flexible belt tool composed of multiple strands of high-strength steel wire rope, on which a series of diamond beads are evenly strung at specific intervals. Its unique design and working principle combine the superhardness of diamond and the convenience of flexible rope, enabling it to perform efficient and precise cutting operations on various hard materials.

[0003] The diamond wire saw is normally used in a closed loop. Once the wire rope breaks, it needs to be connected with a joint. Insert the wire rope at the broken part from both ends of the joint, and then use hydraulic pliers to squeeze the joint to deform it and clamp the wire rope.

[0004] The Chinese patent with the authorization announcement number CN202208069U discloses a wire saw joint, including a cavity for inserting a wire rope, and the wire saw joint includes two layers, an outer layer located on the outside and an inner layer located on the inside, and the cavity is located in the inner layer. It can be seen from the drawings of the patent that the cavity is a straight cylinder, and there are the following problems during use: the wire rope is a spiral structure, and the joint is a tubular straight cylinder structure. In order to increase the clamping force between the joint and the wire rope, a larger extrusion force will be used, so the contact part between the wire rope and the two ends of the joint will be subject to a larger shearing effect. During the cutting process, the wire rope is easy to break from here, increasing the number of rope breaks. Utility Model Content

[0005] To this end, it is necessary to provide a diamond wire saw and its joint to solve the problem that the existing wire rope is a spiral structure and the joint is a tubular straight structure, which will use a large extrusion force. Therefore, the contact area between the wire rope and the two ends of the joint will be subjected to a large shearing effect. During the cutting process, the wire rope is prone to breakage from this point.

[0006] To achieve the above-mentioned purpose, the present embodiment provides a diamond wire saw joint, which is a hollow cylindrical joint, and is provided with a central hole for inserting a spiral steel wire rope inside. The central hole is provided with a concave spiral groove to adapt to the spiral steel wire rope, and the spiral groove includes spiral grooves, and the number of the spiral grooves is the same as the number of strands of the steel wire rope.

[0007] Furthermore, the diamond wire saw joint comprises an inner layer located inside and an outer layer located outside the inner layer, the inner layer is provided with the center hole inside, the outer layer surrounds the inner layer, and the hardness of the outer layer is greater than that of the inner layer.

[0008] Furthermore, the outer layer is a nitride layer.

[0009] Furthermore, the thickness of the nitride layer is 0.4-0.7 mm.

[0010] Furthermore, the diameters of the openings at both ends of the center hole gradually increase compared to the diameter of the main body of the center hole to form trumpet-shaped openings for accommodating the elastomer, wherein the main body of the center hole is provided with the spiral groove.

[0011] Furthermore, the inner wall of the trumpet-shaped opening is straight and inclined to the axial direction of the diamond wire saw joint.

[0012] Furthermore, the outer diameter of the diamond wire saw joint corresponding to the trumpet-shaped opening position is greater than the outer diameter of the diamond wire saw joint corresponding to the main body position.

[0013] Furthermore, an outer protrusion area protruding radially is provided at the center of the diamond wire saw joint.

[0014] To achieve the above-mentioned purpose, the present embodiment further provides a diamond wire saw, comprising a steel wire rope, diamond beads and a diamond wire saw joint, wherein a plurality of the diamond beads are provided on the steel wire rope, and a broken part of the steel wire rope is clamped in a central hole of the diamond wire saw joint, and the diamond wire saw joint is a diamond wire saw joint as described in any one of the above-mentioned embodiments.

[0015] Different from the prior art, the inner wall of the center hole of the above technical solution is no longer a simple straight tube shape, but is designed as a spiral groove that matches the spiral shape of the wire rope. This means that when the spiral wire rope is inserted into the center hole of this joint, the two will achieve a morphological fit. The spiral groove is consistent with the spiral direction of the wire rope. When the extrusion force is applied, it can not only effectively avoid the shear damage of the wire rope caused by excessive local force in the traditional straight tube design, but also achieve the same clamping effect as the prior art with a smaller extrusion force. This design increases the contact area between the joint and the wire rope, significantly improves the overall stability of the joint and the wire rope, and reduces the risk of the wire rope breaking from the joint during high-intensity cutting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of a diamond wire saw joint in this embodiment;

[0017] Figure 2It is a front view of the steel wire rope in this embodiment;

[0018] Figure 3 is a three-dimensional diagram of the steel wire rope in this embodiment;

[0019] Figure 4 is a top view of the diamond wire saw joint in this embodiment;

[0020] Figure 5 This is one of the schematic diagrams of the steel wire rope connected to the diamond wire saw joint in this embodiment;

[0021] Figure 6 This is the second schematic diagram of the steel wire rope connected to the diamond wire saw joint in this embodiment;

[0022] Figure 7 This is a schematic diagram of the steel wire rope in this embodiment being connected to the diamond wire saw joint without being compressed;

[0023] Figure 8 Schematic diagram of the trumpet-shaped opening and the protruding area in this embodiment;

[0024] Fig. 9 It is a schematic diagram of the steel wire rope in this embodiment being connected to the diamond wire saw joint and being compressed.

[0025] Description of reference numerals:

[0026] 1. Diamond wire saw joint;

[0027] 11. Inner layer; 12. Outer layer; 13. Outer protrusion area;

[0028] 2. Center hole;

[0029] 21. main body; 22. trumpet-shaped opening; 23. spiral groove; 231. spiral channel;

[0030] 3. Wire rope;

[0031] 4. Elastomer. DETAILED DESCRIPTION

[0032] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0034] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0035] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0036] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0037] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0038] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0039] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0040] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] See also Figure 1 The present embodiment provides a diamond wire saw joint. The diamond wire saw joint 1 is a hollow column, and a central hole 2 for inserting a steel wire rope 3 is provided inside the central hole 2. The central hole 2 is provided with a concave spiral groove 23 to fit the spiral steel wire rope 3. The spiral groove 23 extends along the axial direction of the central hole 2.

[0042] See also Figure 2 and Figure 3 The spiral steel wire rope 3 refers to a spiral steel wire bundle in which steel wires having mechanical properties and geometric dimensions that meet the requirements are twisted together according to certain rules. The steel wires may be first twisted into strands by multiple layers of steel wires, and then a certain number of strands are twisted into a spiral rope with the rope core as the center.

[0043] See also Figure 1 , Figures 3 to 7 The spiral groove 23 includes spiral grooves 231, and the number of spiral grooves 231 is the same as the number of strands of the wire rope 3. For example, see Figure 3 When the steel wire rope 3 used is twisted with six strands, the spiral groove 23 includes six spiral grooves 231, each groove accurately corresponds to the spiral path of a strand of steel wire rope 3, and the structure is as follows Figures 4 to 7In this way, when the steel wire rope 3 is embedded and compressed, each spiral strand can be perfectly embedded in the dedicated groove, achieving precise spatial adaptation and ensuring uniform bearing of each force.

[0044] In some embodiments, if the steel wire rope 3 is constructed as a four-strand twist, the joint design is also adjusted accordingly, and the internal spiral groove 23 will be correspondingly equipped with four spiral grooves 231. In other embodiments, if the steel wire rope 3 is changed to an eight-strand twist, the internal spiral groove 23 will be correspondingly equipped with eight spiral grooves 231.

[0045] Different from the prior art, the inner wall of the center hole 2 is no longer a simple straight tube shape, but is designed to be a spiral groove 23 that matches the spiral shape of the wire rope 3. This means that when the spiral wire rope 3 is inserted into the center hole 2 of this joint, the two will achieve a morphological fit. The spiral groove 23 is consistent with the spiral direction of the wire rope 3. When the extrusion force is applied, it can not only effectively avoid the shear damage of the wire rope 3 caused by excessive local force in the traditional straight tube design, but also achieve the same clamping effect as the prior art with a smaller extrusion force. This design increases the contact area between the joint and the wire rope 3, significantly improves the overall stability of the joint and the wire rope 3, and reduces the risk of the wire rope 3 breaking from the joint during high-intensity cutting operations.

[0046] See also Figure 5 In this embodiment, the diamond wire saw joint 1 includes an inner layer 11 located inside and an outer layer 12 located outside the inner layer 11. The inner layer 11 has a central hole 2, and the outer layer 12 surrounds the inner layer 11. The hardness of the outer layer 12 is greater than that of the inner layer 11. Due to the improvement of the hardness of the outer layer 12, the wear of the joint during use is significantly reduced, especially when used in conjunction with a diamond wire saw, it can effectively resist the friction and impact generated during high-speed operation and cutting operations, thereby significantly reducing the rope breaking accident caused by joint wear and improving the safety and continuity of the overall operation.

[0047] See also Figure 5 In this embodiment, the outer layer 12 is a nitride layer. The outer surface of the joint has a wear-resistant nitride layer, and the joint is not easy to wear during the use of the rope saw, which reduces the phenomenon of rope breaking caused by water ingress or wear of the wire rope 3 due to joint wear.

[0048] The nitride layer can be made by the existing ion nitriding method. In a low vacuum furnace containing nitrogen gas, the workpiece is used as the cathode and the furnace body is used as the anode. A high voltage direct current is applied between the two, and the nitrogen-containing gas is ionized to form a plasma zone between the two poles. Under the action of the strong electric field in the plasma zone, nitrogen ions bombard the surface of the workpiece at high speed, and the high kinetic energy of the ions is converted into thermal energy, heating the surface of the workpiece to the required temperature, while causing some iron atoms to sputter out and combine with nitrogen to form FeN (iron nitride). Due to the bombardment of ions, atomic sputtering occurs on the surface of the workpiece, thereby being purified. At the same time, due to adsorption and diffusion, active nitrogen atoms are decomposed and diffused into the interior of the workpiece to form a nitride layer. The nitride layer formed by nitriding significantly improves the hardness of the outer surface of the joint. Compared with the untreated inner layer 11, it has a stronger resistance to external wear and effectively extends the service life of the joint.

[0049] In this embodiment, the thickness of the nitrided layer is 0.4-0.7 mm. Maintaining the thickness of the nitrided layer within the range of 0.4-0.7 mm is intended to achieve an optimal balance between hardness and toughness. When the nitriding depth is less than 0.4 mm, it may be difficult to form an effective protective barrier, and the wear resistance and impact resistance are relatively weak.

[0050] In some embodiments, the inner layer 11 and the outer layer 12 of the joint may be welded. The inner layer 11 may be made of copper and the outer layer 12 may be made of steel. Alternatively, the inner layer 11 may be made of iron and the outer layer 12 may be made of steel.

[0051] See also Figure 5 In this embodiment, the diameters of the openings at both ends of the center hole 2 are gradually increased compared to the diameter of the main body 21 of the center hole 2 to form a trumpet-shaped opening 22 for accommodating the elastomer 4, wherein the main body 21 of the center hole 2 is provided with a spiral groove 23.

[0052] The main part 21 of the center hole 2 is the main passage area for the wire rope 3 to pass through the diamond wire saw joint 1, and has a spiral groove 23. There are trumpet-shaped openings 22 with enlarged width on both sides of the main part 21 of the center hole 2, which provide a gradual installation space for the elastic body 4. When compacting, it is filled with rubber to avoid water ingress and reduce the shearing effect of the two ends of the joint on the wire rope 3 during the cutting process.

[0053] See also Figure 5 In this embodiment, the inner wall of the trumpet-shaped opening 22 is straight and inclined to the axial direction of the diamond wire saw joint 1, forming an oblique angle space. When the elastic body 4 is placed in the trumpet-shaped opening 22, the trumpet-shaped opening 22 can generate uniform radial pressure under the action of external force (such as extrusion when assembling the wire rope 3), tightly wrapping the two ends of the wire rope 3, forming a reliable sealing effect.

[0054] In some cases, the inner wall of the trumpet-shaped opening 22 may be designed as an arc-shaped wall.

[0055] See also Figure 8 In this embodiment, the outer diameter of the diamond wire saw joint 1 corresponding to the trumpet-shaped opening 22 is larger than the outer diameter of the diamond wire saw joint 1 corresponding to the main body 21. The diameter of the trumpet-shaped opening 22 is made larger than the diameter of the middle body of the center hole 2 as much as possible, providing a larger contact surface.

[0056] See also Figure 8 In this embodiment, the center of the diamond wire saw joint 1 is provided with an outer protrusion 13 protruding radially. The outer protrusion 13 is designed to be thicker and thinner at both sides, so that when the wire rope 3 is pressed from both ends into the joint, the wire rope 3 located inside the outer protrusion 13 will expand slightly due to the pressure on both sides, the friction force will increase, and a closer contact state will be formed, so that the wire rope 3 is not easy to fall out of the joint.

[0057] See also Figures 1 to 5 The present embodiment further provides a diamond wire saw, comprising a wire rope 3, diamond beads and a diamond wire saw joint 1, wherein the wire rope 3 is provided with a plurality of diamond beads, and the broken part of the wire rope 3 is clamped in the central hole 2 of the diamond wire saw joint 1, and the diamond wire saw joint 1 is a diamond wire saw joint 1 of any one of the above embodiments.

[0058] On the steel wire rope 3, diamond beads are evenly distributed as cutting media. The extremely high hardness of diamond is utilized to directly contact the material to be cut, and the material is efficiently ground and separated through high-speed rotation and reciprocating motion.

[0059] The two ends of the broken or pre-treated wire rope 3 are screwed into the center hole 2 from the two open ends of the joint. Figure 5 , Figure 6 and Figure 7 Then, a strong pressure is applied to the diamond wire saw joint 1 using a professional tool such as a hydraulic pliers, forcing the joint to produce a predetermined deformation, tightly wrapping the two ends of the wire rope 3 to form a firm clamping effect. The structure is as shown in FIG. Fig. 9 As shown. Since the spiral groove 23 fits the spiral joint of the steel wire rope 3, a smaller extrusion force can be used to achieve the same clamping effect as the prior art, reduce shearing, avoid the occurrence of steel wire rope 3 breaking and falling out, and reduce the possibility of rock powder and cooling water entering, so that the steel wire rope 3 is not easy to fall out.

[0060] In this embodiment, the elastic body can be rubber, and the elasticity and plastic deformation ability of the rubber are utilized to adapt to and tightly wrap the two ends of the steel wire rope, thereby achieving excellent sealing and fixing effects.

[0061] This application has the following beneficial effects:

[0062] 1. The surface hardness and wear resistance of the joint are enhanced, which reduces wear and reduces the number of rope breaks.

[0063] 2. A smaller extrusion force can be used to achieve the same clamping effect, reduce shearing effect, and reduce the occurrence of wire rope breakage.

[0064] 3. After the joint is deformed, it fits more closely with the wire rope. Even if it is subjected to repeated bending force of the wire rope, it is not easy to produce gaps, reducing the possibility of entry of rock powder and cooling water, and the wire rope is not easy to fall out.

[0065] It should be noted that although the above embodiments have been described in this article, this does not limit the scope of patent protection of the utility model. Therefore, based on the innovative concept of the utility model, changes and modifications to the embodiments described in this article, or equivalent structural or equivalent process changes made using the contents of the utility model specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields are all included in the scope of protection of the utility model patent.

Claims

1. A diamond wire saw joint, which is a hollow column with a central hole for inserting a spiral wire rope, characterized in that: The central hole is provided with a concave spiral groove to fit the spiral steel wire rope, the spiral groove comprises spiral channels, and the number of the spiral channels is the same as the number of strands of the steel wire rope.

2. The diamond wire saw joint according to claim 1, characterized in that: The diamond wire saw joint comprises an inner layer located inside and an outer layer located outside the inner layer, the inner layer is provided with the central hole, the outer layer surrounds the inner layer, and the hardness of the outer layer is greater than that of the inner layer.

3. The diamond wire saw joint according to claim 2, characterized in that: The outer layer is a nitride layer.

4. The diamond wire saw joint according to claim 3, characterized in that: The thickness of the nitride layer is 0.4-0.7 mm.

5. The diamond wire saw joint according to any one of claims 1 to 4, characterized in that: The diameters of the openings at both ends of the center hole gradually increase compared to the diameter of the main body of the center hole to form trumpet-shaped openings for accommodating the elastic body, wherein the main body of the center hole is provided with the spiral groove.

6. The diamond wire saw joint according to claim 5, characterized in that: The inner wall of the trumpet-shaped opening is straight and inclined to the axial direction of the diamond wire saw joint.

7. The diamond wire saw joint according to claim 5, characterized in that: The outer diameter of the diamond wire saw joint corresponding to the trumpet-shaped opening position is greater than the outer diameter of the diamond wire saw joint corresponding to the main body position.

8. The diamond wire saw joint according to any one of claims 1 to 4, characterized in that: An outer protrusion area protruding radially is provided at the center of the diamond wire saw joint.

9. A diamond wire saw, characterized in that: It comprises a steel wire rope, diamond beads and a diamond wire saw joint, wherein the steel wire rope is provided with a plurality of the diamond beads, the broken part of the steel wire rope is clamped in the central hole of the diamond wire saw joint, and the diamond wire saw joint is a diamond wire saw joint according to any one of claims 1 to 8.

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