High-strength wear-resistant servo forging

Abstract

The utility model discloses a kind of high-strength wear-resisting servo forgings, it is related to the technical field of forgings.The utility model includes: forge body ring, multiple installation grooves are arranged in array distribution configuration on the forge body ring;Gear ring, the gear ring is sleeved in the outer circumferential side of the forge body ring;Inner ring, the inner ring is inserted in the inside of the forge body ring;Fixed assembly, multiple, multiple the fixed assembly is respectively installed in multiple installation grooves.The utility model is by fixed assembly to gear ring and inner ring, the quick installation and disassembly of gear ring and inner ring are realized, the modular degree and maintainability of servo forging are significantly improved, when local component wears, only need to replace damaged parts, without overall scrapping, substantially reduce maintenance cost and resource waste, and reliable pre-tightening force is provided by screw thread adjustment formula double clamping plate structure, enhance connection rigidity, effectively inhibit the slight wear and loosening phenomenon under high-speed start-stop, alternating load, improve operating stability and life.

Description

Technical Field

[0001] This utility model relates to the field of forging technology, specifically to a high-strength wear-resistant servo forging. Background Technology

[0002] With the rapid development of intelligent manufacturing and industrial automation technologies, servo systems, as core components of precision transmission and control, have been widely used in high-end equipment fields such as industrial robots, CNC machine tools, and precision machinery manufacturing. In these application scenarios, servo systems need to achieve high-precision positioning, high-speed response, and frequent start-stop and reversing operations. Therefore, their internal transmission forgings, such as gears, often operate under complex and harsh conditions, enduring large torsional stresses, contact stresses, and cyclic alternating loads for extended periods. This makes them highly susceptible to failure modes such as tooth surface wear, pitting, fretting corrosion, and even fracture, severely affecting the operating accuracy and service life of the equipment.

[0003] A search revealed a utility model patent with Chinese patent publication number CN221628775U, which discloses a wear-resistant and high-toughness gear forging, including a gear disk. An oil reservoir for storing lubricating oil is fixedly installed on the inner side of the gear disk. Oil outlets are provided between adjacent teeth of the gear disk. This utility model employs a multi-stage oil outlet, with both ends cylindrical, a thicker middle section, and gradually decreasing dimensions at both ends. At lower speeds, the sealing plate moves a small distance and cannot seal the oil outlet, allowing lubricating oil to overflow. This ensures the gear disk receives an appropriate amount of lubricating oil early on, reducing transmission wear. As the gear disk speed increases, the sealing plate moves a larger distance, resealing the oil outlet to prevent excessive lubricating oil overflow and waste, as well as splashing at high speeds that could contaminate surrounding equipment. When the gear disk stops rotating, the sealing plate resets under the action of a spring, maintaining a seal with the oil outlet and ensuring no lubricating oil leakage, thus saving costs.

[0004] However, despite the progress made by the above technologies in lubrication management, they still have obvious limitations. The gear forging adopts an integrated structural design. When the tooth ring or inner ring is partially damaged due to long-term wear or overload during use, the damaged parts cannot be replaced individually. The entire forging must be disassembled and replaced as a whole, which not only causes a huge waste of materials and manufacturing costs, but also significantly increases the equipment maintenance cycle and operating costs. Utility Model Content

[0005] The purpose of this utility model is to provide a high-strength, wear-resistant servo forging to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model employs the following technical solution: a high-strength, wear-resistant servo forging, comprising: a forged ring having multiple mounting grooves arranged in an array on it; a toothed ring fitted around the outer periphery of the forged ring; an inner ring inserted into the interior of the forged ring; and multiple fixing components, each installed in one of the mounting grooves for limiting and fixing the toothed ring and the inner ring; each fixing component includes a first locking plate slidably inserted into the forged ring, a first locking groove on the toothed ring, one end of the first locking plate engaging with the first locking groove, and a threaded cylinder rotatably mounted on the other end; a second locking plate slidably mounted on the forged ring, a second locking groove on the inner ring, one end of the second locking plate engaging with the second locking groove, and a threaded rod rotatably mounted on the other end, one end of the threaded rod being threadedly inserted into the threaded cylinder.

[0007] Furthermore, both the threaded cylinder and the threaded rod are fixedly fitted with gripping rings on their outer circumferences.

[0008] Furthermore, multiple reinforcing plates are detachably installed in an array on both sides of the forged ring. The two ends of the reinforcing plates extend to the sides of the toothed ring and the inner ring, respectively, and fit tightly against the sides of both.

[0009] Furthermore, the toothed ring has multiple microgrooves arranged in an array, and the microgrooves are frustum-shaped.

[0010] Furthermore, the forged ring has multiple weight-reducing slots arranged in an array.

[0011] Furthermore, the tooth surface of the tooth ring is coated with a high-strength composite wear-resistant coating, which includes a reinforcing layer and a surface functional layer from the substrate outwards.

[0012] Furthermore, the reinforcing layer is a tungsten carbide-cobalt-nickel composite ceramic layer with a thickness of 40-100 μm.

[0013] Furthermore, the surface functional layer is a nanocomposite lubricating and wear-resistant layer composed of diamond-like carbon film and molybdenum disulfide, with a thickness of 10-30 μm.

[0014] The beneficial effects of this utility model are as follows: This invention enables rapid installation and disassembly of the toothed ring and inner ring through a fixing component, significantly improving the modularity and maintainability of the servo forging. When local components wear out, only the damaged parts need to be replaced, without the need for complete scrapping, greatly reducing maintenance costs and resource waste. Furthermore, the threaded adjustable double clamping plate structure provides reliable preload, enhances connection rigidity, effectively suppresses fretting wear and loosening under high-speed start-stop and alternating loads, and improves operational stability and lifespan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a utility model Figure 1 A three-dimensional sectional view of the structure; Figure 3 This is a utility model Figure 1 A top-down plan view; Figure 4 This is a cross-sectional view of the layered structure of the high-strength composite wear-resistant coating in this utility model.

[0016] Reference numerals: 1. Forged ring; 2. Toothed ring; 3. Inner ring; 4. Fixing component; 41. First clamping plate; 42. Threaded cylinder; 43. Second clamping plate; 44. Threaded rod; 5. Holding ring; 6. Reinforcing plate; 7. Microgroove; 8. Weight reduction slot; 9. High-strength composite wear-resistant coating; 91. Reinforcing layer; 92. Surface functional layer. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0018] like Figure 1-4 As shown, an embodiment of the present invention provides a high-strength wear-resistant servo forging, comprising: a forged ring 1, wherein the forged ring 1 has multiple mounting grooves arranged in an array; Toothed ring 2, the toothed ring 2 being sleeved on the outer periphery of the forged ring 1; Inner ring 3, which is inserted inside the forged ring 1; Multiple fixing components 4 are installed in multiple mounting slots, and are used to limit and fix the toothed ring 2 and the inner ring 3. The fixing component 4 includes a first retaining plate 41 slidably inserted into the forged ring 1. A first retaining groove is formed on the toothed ring 2. One end of the first retaining plate 41 engages with the first retaining groove, and a threaded cylinder 42 is rotatably mounted on the other end. A second retaining plate 43 is slidably mounted on the forged ring 1. A second retaining groove is formed on the inner ring 3. One end of the second retaining plate 43 engages with the second retaining groove, and a threaded rod 44 is rotatably mounted on the other end. One end of the threaded rod 44 is threaded into the threaded cylinder 42. When it is necessary to replace the toothed ring 2 or the inner ring 3 separately, only the threaded rod 44 or the threaded cylinder 42 needs to be rotated. For example, by keeping the threaded rod 44 stationary and rotating the threaded cylinder 42, the first retaining plate 41 and the first retaining groove can be separated.

[0019] In actual assembly and use, the inner ring 3 is first coaxially inserted into the internal cavity of the forged ring 1, and the toothed ring 2 is simultaneously fitted onto the outside of the forged ring 1 from the outer circumference. Then, the operator installs multiple fixing components 4 one by one into their respective mounting slots. The first locking plate 41 of each fixing component 4 is inserted into the mounting slot on the forged ring 1 through a sliding fit, with one end aligned and engaged in the pre-set first locking slot on the toothed ring 2. This achieves circumferential limiting and axial fixation of the toothed ring 2, preventing relative rotation or axial movement during transmission due to torque transmission. Simultaneously, the second locking plate... The second clamping plate 43 is also slidably mounted on the forging ring 1 and engages with the second groove at the end of the inner ring 3, thereby completing the synchronous positioning and constraint of the inner ring 3, ensuring a stable coaxial relationship between the inner ring 3 and the forging ring 1, and avoiding eccentricity or loosening during operation. Based on this, the other end of the first clamping plate 41 is rotatably connected to a threaded cylinder 42, while the other end of the second clamping plate 43 is rotatably connected to a threaded rod 44. The threaded rod 44 can be screwed into the threaded cylinder 42 to form a helical pair connection. After all the clamping positions are initially in place, the operator can rotate the threaded rod 44 or the threaded cylinder 42 to make the two... The two components generate relative engagement motion, rotating away from each other and gradually tightening. The first clamping plate 41 and the second clamping plate 43 are subjected to force and move in opposite directions, thereby increasing the clamping pressure between their ends and the first and second clamping slots, achieving double pre-tightening locking of the toothed ring 2 and the inner ring 3. This bidirectional structure not only effectively improves the overall connection stiffness and vibration resistance, but also maintains a tight fit between the components under alternating loads and high-speed start-stop conditions, preventing connection loosening due to fretting wear. If local failures such as wear of the toothed ring 2 or damage to the inner ring 3 occur after long-term operation of the equipment, By simply unscrewing the connection between the threaded rod 44 and the threaded cylinder 42 in the reverse direction to release the clamping force of the first clamping plate 41 and the second clamping plate 43, the damaged toothed ring 2 or inner ring 3 can be easily disassembled and replaced without replacing the forged ring 1 or other main structures. This greatly reduces maintenance costs and resource waste, and significantly improves the maintainability and modularity of the product. This structure combines the advantages of mechanical locking, thread adjustment and split design, which not only ensures the stable and reliable operation of servo forgings under high-strength, high-frequency and high-precision working conditions, but also meets the comprehensive requirements of modern intelligent manufacturing equipment for long service life, easy maintenance and energy saving and environmental protection.

[0020] like Figure 2 As shown, in some embodiments, a gripping ring 5 is fixedly sleeved on the outer periphery of both the threaded cylinder 42 and the threaded rod 44.

[0021] The grip ring 5 is provided with anti-slip texture, and its edge protrudes outside the mounting groove. When it is necessary to rotate the threaded cylinder 42 or the threaded rod 44, the grip ring 5 on it can be directly pushed to rotate, which is convenient for the operator.

[0022] like Figure 1 As shown, in some embodiments, multiple reinforcing plates 6 are detachably installed in an array on both sides of the forged ring 1. The two ends of the reinforcing plates 6 extend to the sides of the toothed ring 2 and the inner ring 3, respectively, and fit tightly against the sides of both.

[0023] Multiple reinforcing plates 6 can be bolted to the two end faces of the forged ring 1, and evenly distributed circumferentially. Each reinforcing plate 6 spans the transition area between the forged ring 1, the toothed ring 2, and the inner ring 3. One end of the plate is attached to and covers the axial end face of the toothed ring 2, while the other end extends to the corresponding side end face of the inner ring 3 and achieves surface contact. The middle part is attached to and positioned against the side of the forged ring 1, thus forming a "bridging" multi-layer linkage reinforcement structure. This arrangement allows the reinforcing plates 6 to not only effectively restrain the radial expansion tendency of the toothed ring 2 caused by contact stress concentration during high-speed meshing, but also suppress the elastic deformation or fretting displacement that may occur in the inner ring 3 during torque transmission. At the same time, it enhances the bending stiffness and fatigue strength of the forged ring 1 itself under alternating loads.

[0024] like Figure 2 As shown, in some embodiments, the toothed ring 2 has a plurality of microgrooves 7 arranged in an array, and the microgrooves 7 are frustum-shaped.

[0025] Each microgroove 7 adopts a frustum-shaped structure, that is, the opening end is circular with a small diameter, gradually expanding inward to the bottom of the frustum. This geometry is conducive to forming micro oil storage cavities locally. Before the servo forging runs or during the low-speed operation stage, lubricating oil can be pre-filled into each microgroove 7. During gear meshing, with the capillary action and extrusion flow generated by relative motion, the lubricating oil is gradually released to the friction contact surface, forming a stable and continuous oil film layer, effectively reducing the ratio of dry friction and boundary friction between the tooth surfaces, and reducing the risk of starting wear and galling.

[0026] like Figure 2 As shown, in some embodiments, the forged ring 1 has multiple weight-reducing slots 8 arranged in an array.

[0027] Multiple weight-reducing slots 8 are evenly distributed along the circumference of the forging ring 1. Their positions avoid the main stress concentration areas and the cross section where the mounting slot is located. They are reasonably arranged in the transition area where the stress is relatively low, which not only avoids weakening the key load-bearing parts, but also minimizes the amount of material used, thereby significantly reducing the self-weight of the entire forging.

[0028] like Figure 4As shown, in some embodiments, the tooth surface of the tooth ring 2 is coated with a high-strength composite wear-resistant coating 9, which includes a reinforcing layer 91 and a surface functional layer 92 sequentially from the substrate outwards. The reinforcing layer 91 is a tungsten carbide-cobalt-nickel composite ceramic layer with a thickness of 40-100 μm. The surface functional layer 92 is a nanocomposite lubricating and wear-resistant layer composed of a diamond-like carbon film and molybdenum disulfide, with a thickness of 10-30 μm.

[0029] The reinforcing layer 91 is a tungsten carbide-cobalt-nickel composite ceramic layer with a thickness controlled between 40-100 μm. It is uniformly deposited on the tooth surface using supersonic plasma spraying or arc spraying processes. This material system combines the extremely high hardness of the ceramic phase with the good toughness and interfacial bonding ability of the metallic binder phase (cobalt-nickel alloy), effectively resisting micropitting, spalling, and plastic deformation generated during gear meshing. Based on this, the surface functional layer 92 is a nanocomposite lubricating and wear-resistant layer composed of diamond-like carbon film and molybdenum disulfide, with a thickness of 10-30 μm. The microstructure is precisely controlled using magnetron sputtering or ion beam assisted deposition technology, enabling the high hardness and low coefficient of friction of the diamond-like carbon film and the excellent solid lubrication properties of molybdenum disulfide to be synergistically enhanced at the nanoscale, forming a multifunctional surface with "hardness and slipperiness." The application of this high-strength composite wear-resistant coating 9 significantly extends the service life of the tooth ring 2 and reduces the maintenance frequency.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-strength, wear-resistant servo forging, characterized in that, include: Forged ring (1), wherein multiple mounting grooves are arranged in an array on the forged ring (1); Toothed ring (2), the toothed ring (2) is sleeved on the outer periphery of the forged ring (1); Inner ring (3), the inner ring (3) is inserted inside the forged ring (1); The fixing components (4) are multiple in number, and the multiple fixing components (4) are respectively installed in multiple mounting slots, which are used to limit and fix the toothed ring (2) and the inner ring (3). The fixing component (4) includes a first clamping plate (41) slidably inserted into the forging ring (1), a first groove is constructed on the toothed ring (2), one end of the first clamping plate (41) is engaged with the first groove, and a threaded cylinder (42) is rotatably installed on the other end, a second clamping plate (43) is slidably installed on the forging ring (1), a second groove is constructed on the inner ring (3), one end of the second clamping plate (43) is engaged with the second groove, and a threaded rod (44) is rotatably installed on the other end, and one end of the threaded rod (44) is threadedly inserted into the threaded cylinder (42).

2. The high-strength wear-resistant servo forging according to claim 1, characterized in that, Both the threaded cylinder (42) and the threaded rod (44) are fixedly fitted with gripping rings (5) on their outer periphery.

3. The high-strength wear-resistant servo forging according to claim 1, characterized in that, Both sides of the forged ring (1) are detachably equipped with multiple reinforcing plates (6) arranged in an array. The two ends of the reinforcing plates (6) extend to the sides of the toothed ring (2) and the inner ring (3) respectively, and fit tightly against the sides of both.

4. A high-strength wear-resistant servo forging according to claim 1, characterized in that, The toothed ring (2) has multiple micro-grooves (7) arranged in an array, and the micro-grooves (7) are frustum-shaped.

5. A high-strength wear-resistant servo forging according to claim 1, characterized in that, The forged ring (1) has multiple weight-reducing slots (8) arranged in an array.

6. A high-strength wear-resistant servo forging according to claim 1, characterized in that, The tooth surface of the tooth ring (2) is coated with a high-strength composite wear-resistant coating (9), which includes a reinforcing layer (91) and a surface functional layer (92) from the substrate outward.

7. A high-strength wear-resistant servo forging according to claim 6, characterized in that, The reinforcing layer (91) is a tungsten carbide-cobalt-nickel composite ceramic layer with a thickness of 40-100 μm.

8. A high-strength wear-resistant servo forging according to claim 6, characterized in that, The surface functional layer (92) is a nanocomposite lubricating and wear-resistant layer composed of diamond-like carbon film and molybdenum disulfide, with a thickness of 10-30μm.

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