Ultrahigh wear-resistant composite tooth surface gear forging

Abstract

The utility model belongs to gear technical field discloses a kind of ultra-high wear-resistant composite tooth surface gear forgings, including inner disc and wear-resistant gear ring, the outer edge of inner disc is equipped with bayonet, the inner wall of gear ring is fixedly connected with clamping block, clamping block is clamped in bayonet, the inside of inner disc is provided with the limiting component for preventing gear ring from moving along the axial direction of inner disc, the utility model inner disc and gear ring are matched by "bayonet-clamping block" clamping, and matched with the axial limiting component that can be removed, and gear ring tooth slot bottom is equipped with through-hole to facilitate disassembly;When gear tooth is damaged, the gear forging does not need to be replaced as a whole, only needs to replace gear ring alone, reduce maintenance cost and resource waste, gear ring adopts the composite structure of medium-carbon alloy steel matrix and high-carbon chromium alloy steel wear-resistant layer, and is combined by diffusion metallurgy process, can effectively resist tooth surface wear, solve the problem of low wear resistance of traditional gear, significantly prolong the service life of gear forging.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, and in particular to an ultra-high wear-resistant composite tooth surface gear forging. Background Technology

[0002] Gear forgings are gear components manufactured through a forging process and are key components of transmission machinery. They are produced by applying high temperature and pressure to a metal blank, causing plastic deformation to form specific tooth shapes and dimensions, used to transmit power and motion, and withstand loads and impacts.

[0003] Existing gear forgings have low wear resistance during use. Once the gear teeth are damaged, the entire piece needs to be replaced, resulting in high maintenance costs.

[0004] To address this, a high wear-resistant composite tooth surface gear forging is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an ultra-high wear-resistant composite tooth surface gear forging, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include: A high wear-resistant composite gear forging includes an inner disk and a wear-resistant gear ring. The outer edge of the inner disk has a slot, and the inner wall of the gear ring is fixedly connected to a locking block, which is engaged in the slot. The inner disk is provided with a limiting component to prevent the gear ring from moving axially along the inner disk.

[0007] In a high wear-resistant composite gear forging according to the present invention, the inner disk has an inner cavity, and the outer side of the inner disk has a retraction hole communicating with the inner cavity. A movable block is slidably installed inside the inner cavity, and an insert rod is slidably installed inside the retraction hole. One end of the insert rod is fixedly connected to one end of the movable block. A limiting groove is formed on the inner wall of the gear ring, and the end of the insert rod away from the movable block can be inserted into the limiting groove.

[0008] In a high wear-resistant composite tooth surface gear forging according to the present invention, the inner cavity is provided with a spring capable of pushing the movable block toward the retraction hole.

[0009] In a high wear-resistant composite gear forging according to the present invention, a shaft hole is provided on the inner side of the inner disk.

[0010] In a high wear-resistant composite gear forging according to the present invention, the inner disk has a stepped threaded groove that communicates with the shaft hole, a headless screw is fixedly installed in the stepped threaded groove, one end of the spring abuts against the headless screw, and the other end of the spring abuts against the movable block.

[0011] In a high wear-resistant composite tooth surface gear forging according to the present invention, a guide notch is provided on the outer edge of the inner ring of the gear ring.

[0012] In a high wear-resistant composite tooth surface gear forging according to the present invention, the bottom of the tooth groove of the gear ring is provided with a through hole that communicates with the limiting groove.

[0013] In a high wear-resistant composite gear forging according to the present invention, the gear ring includes a matrix and a wear-resistant layer composite on the outer periphery of the matrix. The matrix and the wear-resistant layer are bonded by diffusion metallurgy to form a bonding interface with a compositional gradient transition.

[0014] In a high wear-resistant composite tooth surface gear forging according to the present invention, the base body and the inner disk are both medium carbon alloy steel bodies.

[0015] In a high wear-resistant composite gear forging according to the present invention, the wear-resistant layer is a high carbon chromium alloy steel layer.

[0016] This utility model has at least the following beneficial effects: The inner disc and gear ring are engaged by a "bayonet-block" mechanism, and are equipped with a releasable axial limiting component. The bottom of the gear ring tooth groove has a through hole for easy disassembly. When the gear teeth are damaged, there is no need to replace the entire gear forging; only the gear ring needs to be replaced, reducing maintenance costs and resource waste.

[0017] The gear ring adopts a composite structure of "medium carbon alloy steel matrix and high carbon chromium alloy steel wear-resistant layer", and is combined through diffusion metallurgy process to form a strong bonding interface with a gradient transition of composition, which prevents the wear-resistant layer from falling off. The high carbon chromium alloy steel wear-resistant layer has high hardness and strong wear resistance, which can effectively resist tooth surface wear, solve the problem of low wear resistance of traditional gears, and significantly extend the service life of gear forgings.

[0018] The snap-fit ​​structure between the inner disc and the gear ring enables circumferential positioning, preventing relative rotation during transmission; the axial limiting component prevents axial movement of the gear ring, ensuring stable power transmission; the guide notch on the gear ring facilitates the retraction of the insertion rod during assembly, improving installation convenience; the inner disc shaft hole facilitates mating with external shaft components to meet transmission requirements.

[0019] The inner plate is fitted with headless screws through stepped threaded grooves, which not only provides stable support for the spring, but also facilitates disassembly for replacement of components such as the spring and moving block; the overall structural design takes into account both operational reliability and ease of maintenance, and is adapted to the performance requirements of key components of transmission machinery. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 for Figure 2 A magnified structural diagram of part A in the diagram; Figure 4 This is a schematic diagram of the structure of the gear ring of this utility model; Figure 5 This is a schematic diagram of the inner disc of this utility model.

[0021] Explanation of icon numbers: 1. Inner plate; 101. Bayonet; 102. Shaft hole; 103. Inner cavity; 104. Retraction hole; 105. Stepped thread groove; 2. Gear ring; 201. Locking block; 202. Limiting groove; 203. Guide notch; 204. Through hole; 3. Movable block; 4. Insert rod; 5. Spring; 6. Headless screw. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Please refer to Figures 1 to 5 As shown, an embodiment of this utility model provides an ultra-high wear-resistant composite gear forging, including an inner disk 1 and a wear-resistant gear ring 2. The outer edge of the inner disk 1 is provided with a slot 101, and the inner wall of the gear ring 2 is fixedly connected with a locking block 201, which is engaged in the slot 101. The inner disk 1 is provided with a limiting component to prevent the gear ring 2 from moving axially along the inner disk 1.

[0024] By adopting the above technical solution, the inner disk 1 and the gear ring 2 are engaged through the slot 101 on the outer edge of the inner disk 1 and the locking block 201 fixedly connected to the inner wall of the gear ring 2, thus initially completing the circumferential positioning of the two and preventing relative circumferential rotation between the inner disk 1 and the gear ring 2 during transmission, ensuring the stability of power transmission. At the same time, the limiting component set inside the inner disk 1 can limit the displacement of the gear ring 2 along the axial direction of the inner disk 1, preventing the gear ring 2 from axially moving during operation, ensuring the integrity and reliability of the entire gear forging structure, and laying the foundation for it to serve as a key component of transmission machinery for transmitting power and motion, and bearing loads and impacts.

[0025] In this embodiment, the inner plate 1 has an inner cavity 103 inside, and the outer side of the inner plate 1 has a retraction hole 104 that communicates with the inner cavity 103. A movable block 3 is slidably installed inside the inner cavity 103, and an insertion rod 4 is slidably installed inside the retraction hole 104. One end of the insertion rod 4 is fixedly connected to one end of the movable block 3. A limiting groove 202 is opened on the inner wall of the gear ring 2, and the end of the insertion rod 4 away from the movable block 3 can be inserted into the limiting groove 202.

[0026] By adopting the above technical solution, the inner cavity 103 inside the inner disk 1 provides a sliding installation space for the movable block 3, and the retraction hole 104 on the outer side of the inner disk 1, which communicates with the inner cavity 103, provides a sliding path for the insertion rod 4. Since one end of the insertion rod 4 is fixedly connected to the movable block 3, the sliding of the movable block 3 in the inner cavity 103 can drive the insertion rod 4 to slide synchronously in the retraction hole 104. When the end of the insertion rod 4 away from the movable block 3 is inserted into the limiting groove 202 opened on the inner wall of the gear ring 2, it can directly restrict the axial movement of the gear ring 2 relative to the inner disk 1, further improving the stability of the connection between the inner disk 1 and the gear ring 2.

[0027] In this embodiment, the inner cavity 103 is provided with a spring 5 that can push the movable block 3 toward the retraction hole 104.

[0028] By adopting the above technical solution, the spring 5 inside the inner cavity 103 can apply a continuous thrust to the movable block 3 in the direction of approaching the retraction hole 104; this thrust is transmitted through the movable block 3 to the insertion rod 4 fixedly connected to it, so that the insertion rod 4 always has the tendency to move towards the limiting groove 202 on the inner wall of the gear ring 2, ensuring that the end of the insertion rod 4 away from the movable block 3 is stably inserted into the limiting groove 202, thus ensuring the continuity and reliability of the axial limiting effect.

[0029] In this embodiment, an axle hole 102 is provided on the inner side of the inner disk 1.

[0030] By adopting the above technical solution, the shaft hole 102 opened on the inner side of the inner plate 1 can be installed with external shaft components, providing a structural basis for the connection between the gear forging and the shaft; with the cooperation of the shaft hole 102 and the shaft, the gear forging can receive or transmit torque through the shaft, thereby realizing the transmission of power and motion in the transmission system, which meets the core requirement that the gear forging, as a key component of transmission machinery, needs to work in coordination with the shaft, and also provides support for the fixed installation of the gear forging in the equipment.

[0031] In this embodiment, the inner plate 1 has a stepped threaded groove 105 that communicates with the shaft hole 102. A headless screw 6 is fixedly installed in the stepped threaded groove 105. One end of the spring 5 abuts against the headless screw 6, and the other end of the spring 5 abuts against the movable block 3.

[0032] By adopting the above technical solution, the stepped threaded groove 105 inside the inner plate 1, which communicates with the shaft hole 102, provides a threaded installation position for the headless screw 6. After the headless screw 6 is fixed in the stepped threaded groove 105 by the thread, its end face can serve as a stable support point for one end of the spring 5. One end of the spring 5 abuts against the headless screw 6, and the other end abuts against the movable block 3, which can stably apply a pushing force to the movable block 3 within the fixed space. At the same time, the threaded installation method of the headless screw 6 facilitates subsequent disassembly to replace the spring 5, the movable block 3, and the insert rod 4.

[0033] In this embodiment, a guide notch 203 is provided on the outer edge of the inner ring of the gear ring 2.

[0034] By adopting the above technical solution, the guide notch 203 on the outer edge of the inner ring of the gear ring 2 plays a guiding role when the gear ring 2 is assembled with the inner disk 1. When the gear ring 2 is sleeved on the outside of the inner disk 1, the guide notch 203 can guide the insertion rod 4 to retract into the retraction hole 104 first. When the insertion rod 4 moves to the limiting groove 202, it is inserted into the limiting groove 202 under the elastic force of the spring 5.

[0035] In this embodiment, a through hole 204 communicating with the limiting groove 202 is provided at the bottom of the tooth groove of the gear ring 2.

[0036] By adopting the above technical solution, the through hole 204, which connects the bottom of the gear ring 2 tooth groove with the limiting groove 202, provides an operation channel for disassembly and maintenance. When it is necessary to disassemble the gear ring 2 from the inner disk 1, a tool can be inserted through the through hole 204 and one end of the insert rod 4 located in the limiting groove 202 can be pushed. The insert rod 4 will overcome the thrust of the spring 5 and move into the retraction hole 104 until the insert rod 4 is completely separated from the limiting groove 202, releasing the axial limitation on the gear ring 2. Then the gear ring 2 and the inner disk 1 can be separated, simplifying the disassembly process and reducing the difficulty and cost of later maintenance. In this embodiment, the gear ring 2 includes a matrix and a wear-resistant layer composite on the outer periphery of the matrix. The matrix and the wear-resistant layer are bonded by diffusion metallurgy to form a bonding interface with a gradient transition of composition.

[0037] By adopting the above technical solution, the gear ring 2 adopts a composite structure of a matrix and an outer wear-resistant layer, and the two are combined through diffusion metallurgy. Diffusion metallurgy enables the metal atoms of the matrix and the wear-resistant layer to diffuse into each other, forming a bonding interface with a gradient transition of composition. This avoids the problems of weak bonding and easy detachment in traditional composite structures, ensuring that the wear-resistant layer is stably attached to the outer periphery of the matrix. The outer wear-resistant layer can directly withstand the wear during the transmission process, greatly improving the wear resistance of the gear ring 2, solving the problem of low wear resistance of existing gear forgings, and extending the service life of the entire gear forging.

[0038] In this embodiment, both the base and the inner disk 1 are made of medium carbon alloy steel.

[0039] By adopting the above technical solution, both the base body and the inner disk 1 of the gear ring 2 are made of medium carbon alloy steel. Medium carbon alloy steel has high strength and good toughness, and can withstand the load and impact that the gear forging is subjected to when transmitting power. As the supporting structure of the wear-resistant layer, the medium carbon alloy steel material of the base body can ensure its stable support capability for the wear-resistant layer. As the core structure that connects with the shaft and mates with the gear ring 2, the medium carbon alloy steel material of the inner disk 1 can prevent it from deforming or being damaged due to excessive force, thus providing a reliable material guarantee for the structural stability and load-bearing performance of the entire gear forging.

[0040] In this embodiment, the wear-resistant layer is a high-carbon chromium alloy steel layer.

[0041] By adopting the above technical solution, the wear-resistant layer of gear ring 2 is made of high-carbon chromium alloy steel. High-carbon chromium alloy steel has excellent high hardness and high wear resistance. As the outer wear-resistant layer of gear ring 2, it can directly contact other transmission components and withstand wear, effectively resisting wear and scratches on the tooth surface during transmission, and significantly improving the wear resistance of the tooth surface of gear ring 2. At the same time, high-carbon chromium alloy steel has stable performance and can maintain good wear resistance during long-term use, extending the replacement cycle of gear forgings, reducing the need for overall replacement due to tooth damage, and reducing later maintenance costs.

[0042] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high wear-resistant composite gear forging, characterized in that, The device includes an inner disk (1) and a wear-resistant gear ring (2). The outer edge of the inner disk (1) is provided with a slot (101). The inner wall of the gear ring (2) is fixedly connected with a locking block (201). The locking block (201) is engaged in the slot (101). The inner disk (1) is provided with a limiting component to prevent the gear ring (2) from moving axially along the inner disk (1).

2. The ultra-high wear-resistant composite gear forging according to claim 1, characterized in that: The inner disk (1) has an inner cavity (103) inside, and a retraction hole (104) communicating with the inner cavity (103) is opened on the outer side of the inner disk (1). A movable block (3) is slidably installed inside the inner cavity (103), and a plug rod (4) is slidably installed inside the retraction hole (104). One end of the plug rod (4) is fixedly connected to one end of the movable block (3). A limiting groove (202) is opened on the inner wall of the gear ring (2), and the end of the plug rod (4) away from the movable block (3) can be inserted into the limiting groove (202).

3. The ultra-high wear-resistant composite gear forging according to claim 2, characterized in that: The inner cavity (103) is provided with a spring (5) that can push the movable block (3) toward the retraction hole (104).

4. The ultra-high wear-resistant composite gear forging according to claim 3, characterized in that: The inner side of the inner disk (1) is provided with a shaft hole (102).

5. The ultra-high wear-resistant composite gear forging according to claim 4, characterized in that: The inner plate (1) has a stepped threaded groove (105) that communicates with the shaft hole (102). A headless screw (6) is fixedly installed in the stepped threaded groove (105). One end of the spring (5) abuts against the headless screw (6), and the other end of the spring (5) abuts against the movable block (3).

6. The ultra-high wear-resistant composite gear forging according to claim 5, characterized in that: The gear ring (2) has a guide notch (203) on the outer edge of its inner ring.

7. The ultra-high wear-resistant composite gear forging according to claim 6, characterized in that: The bottom of the tooth groove of the gear ring (2) is provided with a through hole (204) that communicates with the limiting groove (202).

8. The ultra-high wear-resistant composite gear forging according to claim 1, characterized in that: The gear ring (2) includes a matrix and a wear-resistant layer composited on the outer periphery of the matrix. The matrix and the wear-resistant layer are bonded by diffusion metallurgy to form a bonding interface with a compositional gradient transition.

9. The ultra-high wear-resistant composite gear forging according to claim 8, characterized in that: Both the base and the inner disk (1) are made of medium carbon alloy steel.

10. The ultra-high wear-resistant composite gear forging according to claim 8, characterized in that: The wear-resistant layer is a high-carbon chromium alloy steel layer.

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