A suspension device for heat treatment of gears

Abstract

The utility model relates to gear heat treatment technical field, concretely is a kind of gear heat treatment and suspends equipment, including boat, first operator moves equipment to the above of gear to be handled by boat, wherein boat is market product, adjust height and make clamp align gear edge, then sleeve falls, drive triangular plate to move down, chain press clamp, it is that clamp bottom end is outwardly cocked, at this time, boat promotes sleeve and drive triangular plate to tighten chain, the tension of chain is transmitted to clamp, makes it rotate and close around the fixed ring of the bottom end of inclined rod, to clamp gear, at this time, limit pawl is engaged with block two under the action of spring, lock current position, boat starts, hoists gear to heat treatment furnace and carries out heating or cooling treatment, after processing, boat hoists gear to next process, operator puts down limit pawl and slides through block one, at this time, lifting suspending equipment can be unlocked limit pawl, sliding bar moves up, chain press clamp loosens, complete the unloading of gear.

Description

Technical Field

[0001] This utility model relates to the field of gear heat treatment technology, and in particular to a suspension device for gear heat treatment. Background Technology

[0002] Gear heat treatment is a gear processing technique that involves heat-treating the surface of gears at specific temperatures to improve their physical and mechanical properties. It mainly includes various methods such as hardening, quenching, tempering, and normalizing to effectively improve the material's hardness, strength, ductility, fatigue performance, wear resistance, and corrosion resistance. Comprehensive heat treatment can be categorized into quenching, normalizing, and tempering. Quenching involves exposing ferritic materials to a high temperature, which increases hardness but reduces ductility. Normalizing improves the surface hardness, strength, and ductility of the gear, but requires very strict environmental conditions. Tempering involves heating quenched or normalized gears to a certain temperature at a low temperature to stabilize the material structure and improve its physical, mechanical, and corrosion resistance.

[0003] Traditional suspension methods often employ single hooks or simple clamps, which suffer from problems such as unstable clamping, easy deformation, and inconvenient operation. Especially for large, precision gears, even minor swaying or uneven stress during suspension can lead to poor heat treatment results or even scrap. Therefore, the market urgently needs a suspension device that can operate stably in high-temperature and vibration environments while meeting the requirements of precise control and efficient operation.

[0004] To meet the above requirements, its design objectives include: first, ensuring gear stability during suspension to prevent deformation due to shaking or uneven stress; second, enabling rapid loading and unloading to improve production efficiency; third, adapting to the harsh environment of the heat treatment workshop, possessing characteristics such as high temperature resistance, corrosion resistance, and vibration resistance; fourth, simple operation to reduce worker labor intensity; and fifth, a compact structure to reduce floor space. Through these innovative designs, the equipment has successfully achieved these objectives, providing reliable technical support for gear heat treatment processes. Utility Model Content

[0005] The purpose of this invention is to provide a suspension device for gear heat treatment, which solves the problems mentioned in the background art, such as unstable clamping, easy deformation, and inconvenient operation. Especially for large, precision gears, even slight shaking or uneven force during suspension can lead to poor heat treatment results.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a suspension device for gear heat treatment, comprising a gantry crane, a hook movably mounted below the gantry crane, a hanging ring movably mounted inside the hook, a sleeve fixedly mounted on the lower surface of the hanging ring, a sliding rod slidably connected inside the sleeve, a limit assembly mounted on the outside of the sliding rod, a triangular plate fixedly mounted at the bottom end of the sliding rod, and a suspension assembly mounted below the triangular plate.

[0007] The suspension assembly includes a triangular block, which is fixedly installed on the outside of the sleeve. The triangular block has three grooves, and a fixed shaft is fixedly installed inside the groove. There are three fixed shafts, and three chains are sleeved on the outside of the fixed shafts.

[0008] The triangular plate is externally fixedly equipped with three sets of inclined rods, and a fixed ring is fixedly installed at the bottom of each inclined rod. The fixed ring is circular.

[0009] The inclined rod is rotatably connected to a clamp, and there are three clamps. A pull ring is fixedly installed at the top of the clamp and the pull ring is connected to the chain.

[0010] The limiting component includes limiting claws, which are rotatably connected inside the groove. There are three limiting claws, and the limiting claws are L-shaped.

[0011] The slide bar is slidably connected to a first locking block, and a second locking block is installed above the first locking block. The second locking block is fixedly connected to the slide bar, the first locking block is slidably connected to a fixed claw, and the second locking block is engaged with the fixed claw.

[0012] This utility model discloses a suspension device for gear heat treatment. The core innovation of this device lies in its multi-stage adjustable suspension structure. Through the sliding connection of the sleeve and slide rod, combined with a limiting component, precise adjustment of the suspension height is achieved. The cooperative design of the triangular plate and triangular block ensures uniform force distribution on the chain in three directions, effectively distributing the gear weight and avoiding the risk of deformation caused by single-point force. The linkage mechanism between the chain and the clamp is particularly ingenious: when the sleeve slides downwards, the chain is released, causing the clamp to open and unload the gear; conversely, when the sleeve moves upwards, the clamp closes. Facilitating gear clamping, this mechanical linkage design requires no additional power source, boasts a simple and reliable structure, and greatly improves operational efficiency. The design of the limit component is another major highlight of this equipment. The L-shaped limit claw, in conjunction with the first and second clamping blocks, forms a double-locking mechanism. When the clamp is closed in place, the second clamping block does not contact the limit claw, while the sliding connection of the first clamping block allows for unlocking during unloading, enabling flexible operation. This design is particularly important in harsh heat treatment environments such as high temperature and vibration, effectively avoiding the risk of gear detachment caused by external interference and significantly improving the level of safe production. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the suspension component of this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the limiting component of this utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the clamp of this utility model.

[0018] In the diagram: 1. Hanger; 2. Hook; 3. Hanging ring; 4. Sleeve; 5. Slide rod; 6. Triangular plate; 7. Suspension assembly; 8. Limiting assembly; 9. Triangular block; 10. Groove; 11. Fixed shaft; 12. Chain; 13. Inclined rod; 14. Fixed ring; 15. Clamp; 16. Pull ring; 17. Limiting claw; 18. Locking block one; 19. Locking block two. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a suspension device for gear heat treatment, including a gantry 1, a hook 2 movably installed below the gantry 1, a hanging ring 3 movably installed inside the hook 2, a sleeve 4 fixedly installed on the lower surface of the hanging ring 3, a sliding rod 5 slidably connected inside the sleeve 4, a limit assembly 8 installed on the outside of the sliding rod 5, a triangular plate 6 fixedly installed at the bottom end of the sliding rod 5, and a suspension assembly 7 installed below the triangular plate 6.

[0021] Please see Figures 1-2The suspension assembly 7 includes a triangular block 9. The sleeve 4 has a triangular block 9 fixedly mounted on its exterior. The triangular block 9 has three grooves 10. Three fixed shafts 11 are fixedly mounted inside each groove 10. Three chains 12 are sleeved around each fixed shaft 11. The triangular plate 6 has three sets of tilting rods 13 fixedly mounted on its exterior. A circular fixing ring 14 is fixedly mounted at the bottom of each tilting rod 13. A clamp 15 is rotatably connected inside each tilting rod 13. There are three clamps 15. A pull ring 16 is fixedly installed at the top of each clamp 15. The pull ring 16 is connected to the chain 12. The operator moves the equipment above the gear to be processed using the overhead crane 1. The overhead crane 1 is a commercially available product. The height is adjusted so that the clamp 15 is aligned with the edge of the gear. Then the sleeve falls, causing the triangular plate 6 to move down. The chain 12 presses down on the clamp 15, causing the bottom of the clamp 15 to tilt outward. At this time, the overhead crane 1 lifts the sleeve, causing the triangular plate 6 to tighten the chain 12. The tension of the chain 12 is transmitted to the clamp 15, causing it to rotate around the fixed ring 14 at the bottom of the inclined rod 13 and close, thereby clamping the gear.

[0022] Please see Figures 1-3 The limiting component 8 includes limiting claws 17. The limiting claws 17 are rotatably connected inside the groove 10. There are three limiting claws 17, and each limiting claw 17 is L-shaped. A locking block 18 is slidably connected to the outside of the slide rod 5. A locking block 2 19 is installed above the locking block 18. The locking block 2 19 is fixedly connected to the slide rod 5. The locking block 18 is slidably connected to the fixed claw. The locking block 2 19 is engaged with the fixed claw. The limiting claws 17 and locking block 2 19 are engaged to lock the current position. The gantry crane 1 starts and lifts the gear into the heat treatment furnace for heating or cooling treatment. After the treatment is completed, the gantry crane 1 lifts the gear to the next process. The operator lowers the gear and the limiting claws 17 slide past the locking block 18. At this time, lifting the suspension equipment can unlock the limiting claws 17. The slide rod 5 moves up, the chain 12 presses down and the clamp 15 is released, completing the unloading of the gear.

[0023] Working principle: First, the operator moves the equipment above the gear to be processed using the overhead crane 1 (a commercially available product). The height is adjusted so that the clamp 15 is aligned with the edge of the gear. Then, the sleeve falls, causing the triangular plate 6 to move down. The chain 12 presses down on the clamp 15, causing the bottom of the clamp 15 to tilt outward. At this time, the overhead crane 1 raises the sleeve, causing the triangular plate 6 to tighten the chain 12. The tension of the chain 12 is transmitted to the clamp 15, causing it to rotate around the fixed ring 14 at the bottom of the inclined rod 13 and close, thus clamping the gear. At this time, the limiting claw 17 engages with the second locking block 19, locking the current position. The overhead crane 1 starts and lifts the gear into the heat treatment furnace for heating or cooling. After the treatment is completed, the overhead crane 1 lifts the gear to the next process. The operator lowers the gear, and the limiting claw 17 slides past the first locking block 18. At this time, lifting the suspension equipment unlocks the limiting claw 17, the sliding rod 5 moves up, and the chain 12 presses down on the clamp 15 to release it, completing the unloading of the gear.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A suspension device for gear heat treatment, comprising a crane (1), characterized in that: A hook (2) is movably installed below the gantry (1). A hanging ring (3) is movably installed inside the hook (2). A sleeve (4) is fixedly installed on the lower surface of the hanging ring (3). A sliding rod (5) is slidably connected inside the sleeve (4). A limit assembly (8) is installed on the outside of the sliding rod (5). A triangular plate (6) is fixedly installed at the bottom of the sliding rod (5). A suspension assembly (7) is installed below the triangular plate (6).

2. The suspension device for gear heat treatment according to claim 1, characterized in that: The suspension assembly (7) includes a triangular block (9). The sleeve (4) is fixedly installed with the triangular block (9). The triangular block (9) has a groove (10). There are three grooves (10). A fixed shaft (11) is fixedly installed inside the groove (10). There are three fixed shafts (11). A chain (12) is sleeved on the outside of the fixed shaft (11). There are three chains (12).

3. The suspension device for gear heat treatment according to claim 2, characterized in that: An inclined rod (13) is fixedly installed on the outside of the triangular plate (6). There are three sets of inclined rods (13). A fixing ring (14) is fixedly installed at the bottom of the inclined rod (13). The fixing ring (14) is circular.

4. The suspension device for gear heat treatment according to claim 3, characterized in that: The inclined rod (13) is rotatably connected to a clamp (15), there are three clamps (15), and a pull ring (16) is fixedly installed at the top of the clamp (15), the pull ring (16) is connected to the chain (12).

5. A suspension device for gear heat treatment according to claim 4, characterized in that: The limiting component (8) includes a limiting claw (17), which is rotatably connected inside the groove (10). There are three limiting claws (17), and the limiting claws (17) are L-shaped.

6. The suspension device for gear heat treatment according to claim 1, characterized in that: The slide bar (5) is slidably connected to a first locking block (18), and a second locking block (19) is installed above the first locking block (18). The second locking block (19) is fixedly connected to the slide bar (5), the first locking block (18) is slidably connected to the fixed claw, and the second locking block (19) is engaged with the fixed claw.

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