A smoke filtering device for heat treatment of a disc gear

The smoke filtration device, with its multi-layer filter plate structure and quick-disassembly design, solves the problems of poor smoke treatment effect and cumbersome replacement in existing technologies, achieving efficient purification and efficient production.

CN224585558UActive Publication Date: 2026-08-04CHANGZHOU FULIN PRECISION TRANSMISSION CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU FULIN PRECISION TRANSMISSION CO LTD
Filing Date
2025-08-20
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing gear heat treatment equipment, the fume treatment device has a simple filtration structure, which makes it difficult to effectively remove various harmful substances. The filtration effect is poor, which cannot meet the environmental emission requirements. Moreover, the replacement of filter components is cumbersome and affects production efficiency.

Method used

A multi-layer filter box is designed, in which the filter plates are slidably connected by mounting grooves, connecting strips, and threaded holes. Combined with a transmission device and hydraulic cylinder, it can be quickly disassembled and flexibly replaced to adapt to different smoke components and improve the purification effect.

Benefits of technology

It achieves effective purification of smoke through multi-layer filtration, reduces environmental and personnel hazards, ensures the continuity of filtration effect, and improves production efficiency and environmental emission control capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of smoke filtering devices for disc gear heat treatment, relate to gear heating technical field.The utility model includes gear heat treatment machine body, and gear heat treatment machine body top is opened with positioning hole;Positioning hole inside movably connected with locating block, and locating block top is fixed with mounting plate, and mounting plate top is fixed with transmission device;Mounting plate both sides are fixed with sliding slot, and sliding slot inside is slidably connected with slide plate;Slide plate side is fixed with adjusting plate, and adjusting plate side is fixed with fixed plate.The utility model passes through the effect of filter box, and the smoke filtered by several filter plates inside filter box is filtered, and harmful substance can be filtered in multiple layers, effectively purify the smoke generated by heat treatment, reduce the harm to environment and operator, and the mounting groove on its upper surface is slidably connected with filter plate, combined with the design of first connecting strip, second connecting strip and screw hole, filter plate can be quickly disassembled, convenient for cleaning filter plate.
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Description

Technical Field

[0001] This utility model belongs to the field of gear heating technology, and in particular relates to a smoke filtration device for heat treatment of disc gears. Background Technology

[0002] In the manufacturing process of disc gears, heat treatment is a crucial step. Through processes such as heating, holding, and cooling, the mechanical properties and service life of the gears can be significantly improved. However, during the heat treatment process, due to the chemical reactions of the materials themselves, the volatilization of surface coatings, and the combustion of oil, a large amount of fumes containing harmful substances are generated. These fumes not only contain dust particles but may also contain irritating gases and toxic compounds. If directly emitted into the workshop environment, they will pose a serious threat to the respiratory system and health of operators, and long-term exposure may even lead to occupational diseases. At the same time, the fumes diffuse into the air and pollute the workshop environment, affecting the normal operation of production equipment, increasing equipment maintenance costs, and failing to meet the environmental protection requirements and safety standards of modern industrial production.

[0003] While some existing gear heat treatment equipment is equipped with simple fume treatment devices, it has obvious shortcomings: on the one hand, the filter structure design is simple, mostly using a single-layer filtration method, which makes it difficult to effectively remove various harmful substances in the fume, resulting in poor filtration effect and failure to meet environmental emission requirements; on the other hand, the disassembly and assembly process of filter components is cumbersome, and when the filter material is saturated, cleaning or replacement is time-consuming and labor-intensive, affecting the continuous production efficiency of the equipment, and it is difficult to flexibly change the appropriate filter material according to different fume components, resulting in unstable filtration effect.

[0004] To address these issues, we provide a fume filtration device for heat treatment of disc gears. Utility Model Content

[0005] The purpose of this invention is to provide a smoke filtration device for disc-shaped gear heat treatment. Through the function of the filter box, several filter plates inside the filter box filter the drawn-in smoke, enabling multi-layer filtration of harmful substances and effectively purifying the smoke generated during heat treatment. This reduces harm to the environment and operators. Furthermore, the mounting groove on its upper surface slides and connects to the filter plates. Combined with the design of the first connecting strip, the second connecting strip, and the threaded holes, the filter plates can be quickly disassembled and installed, facilitating cleaning, replacement, or flexible replacement of different types of filter plates according to the smoke composition. This ensures the continuity of the filtration effect and solves the problem that existing filter structures are often simple in design, using single-layer filtration, making it difficult to effectively remove multiple harmful substances from the smoke, resulting in poor filtration and failure to meet environmental emission requirements.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a smoke filtering device for heat treatment of disc gears, including a gear heat treatment machine body, wherein a positioning hole is opened on the top of the gear heat treatment machine body; A positioning block is movably connected inside the positioning hole, a mounting plate is fixed to the top of the positioning block, and a transmission device is fixed to the top of the mounting plate. The mounting plate is fixed with sliding grooves on both sides, and a sliding plate is slidably connected inside the sliding grooves; An adjustment plate is fixed to one side of the slide plate, a fixing plate is fixed to one side of the adjustment plate, and a hydraulic cylinder is fixed to one side of the fixing plate. The hydraulic cylinder output shaft is fixed with a collection pipe; A filter box is fixed to the upper surface of the slide plate, and an air pump is fixed to the upper surface of the slide plate. A first connecting pipe is connected between the collection pipe and the filter box, and a second connecting pipe is connected between the side of the filter box away from the first connecting pipe and the input end of the air pump. A vent pipe is fixed to the bottom of the collection pipe, a suction pipe is fixed to the bottom of the vent pipe, and a movable plate is fixed to the outside of the vent pipe.

[0007] The present invention is further configured such that: a plurality of mounting grooves are formed on the upper surface of the filter box, and a filter plate is slidably connected inside the mounting groove; A first connecting strip is fixed to the upper surface of the filter plate, and a second connecting strip is fixed to both sides of the mounting groove; Both the first connecting strip and the second connecting strip have threaded holes on their surfaces.

[0008] The present invention is further configured such that: a limit block is fixed on the upper surface of the movable plate, and a limit groove is opened on the surface of the adjustment plate; The limiting block is slidably connected to the limiting groove.

[0009] The present invention is further configured such that: the surface of the adjustment plate has a placement groove, and the vent pipe slides in the placement groove.

[0010] The present invention is further configured such that: the transmission device includes a motor, and the motor is fixedly connected to the mounting plate; The motor output shaft is fixed with a rotating rod, and a bracket is fixed on the upper surface of the mounting plate; The bracket is rotatably connected to the rotating rod, and a main moving plate is rotatably connected to the outside of the rotating rod.

[0011] The present invention is further configured such that a slave moving plate is rotatably connected to the end of the main moving plate away from the motor; A connecting frame is fixed to the upper surface of the slide plate, and the end of the secondary moving plate away from the main moving plate is rotatably connected to the connecting frame.

[0012] The present invention is further configured such that mounting holes are fixed on both sides of the gear heat treatment machine body; The mounting plate is fixed with fixing strips on both sides, and a tension spring is fixed to one side of each fixing strip. A handle is fixed to one end of each tension spring. A locking rod is fixed to one end of the handle, the locking rod passes through the fixing strip, and one end of the locking rod is engaged in the mounting hole.

[0013] This utility model has the following beneficial effects: This utility model utilizes a filter box, which filters the drawn-in smoke through several filter plates inside. It can filter harmful substances in multiple layers, effectively purifying the smoke generated by heat treatment, reducing harm to the environment and operators. Furthermore, the mounting groove on its upper surface is slidably connected to the filter plate. Combined with the design of the first connecting strip, the second connecting strip, and the threaded hole, the filter plate can be quickly disassembled and installed, facilitating cleaning and replacement of the filter plate. Alternatively, different types of filter plates can be flexibly replaced according to the smoke composition to ensure the continuity of the filtration effect.

[0014] This invention utilizes a transmission device. The motor of the transmission device drives the rotating rod to rotate, and through the linkage between the main moving plate and the slave moving plate, the sliding plate is driven to reciprocate along the slide groove, thereby expanding the collection range of the exhaust pipe. Combined with the lateral adjustment of the hydraulic cylinder, it can fully cover the smoke area above the gear heat treatment machine body, greatly improving the smoke collection efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a smoke filtration device for heat treatment of disc-shaped gears according to the present invention.

[0017] Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle.

[0018] Figure 3 This is a schematic diagram of the main body structure of the gear heat treatment machine of this utility model.

[0019] Figure 4 This is a schematic diagram of the transmission device structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the mounting plate structure from a bottom view.

[0021] Figure 6 This is a schematic diagram of the filter box structure of this utility model.

[0022] The attached diagram lists the components represented by each number as follows: 1-Gear heat treatment machine body, 2-Positioning hole, 3-Positioning block, 4-Mounting plate, 5-Transmission device, 501-Motor, 502-Rotating rod, 503-Bracket, 504-Main moving plate, 505-Slave moving plate, 506-Connecting frame, 6-Slide groove, 7-Slide plate, 8-Adjusting plate, 9-Fixing plate, 10-Hydraulic cylinder, 11-Collection pipe, 12-Filter box, 13-Air pump, 14-First connecting pipe, 15-Second connecting pipe, 16-Vent pipe, 17-Air extraction pipe, 18-Moving plate, 19-Mounting groove, 20-Filter plate, 21-First connecting strip, 22-Second connecting strip, 23-Threaded hole, 24-Limiting block, 25-Limiting groove, 26-Placement groove, 27-Mounting hole, 28-Fixing strip, 29-Tension spring, 30-Handle, 31-Clamping rod. Detailed Implementation

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0026] For a specific implementation example, please refer to Implementation Example 1. Figure 1-6This utility model is a smoke filtration device for heat treatment of disc-shaped gears, including a gear heat treatment machine body 1, with a positioning hole 2 on the top of the gear heat treatment machine body 1; a positioning block 3 is movably connected inside the positioning hole 2, a mounting plate 4 is fixed on the top of the positioning block 3, and a transmission device 5 is fixed on the top of the mounting plate 4; sliding grooves 6 are fixed on both sides of the mounting plate 4, and sliding plates 7 are slidably connected inside the sliding grooves 6; an adjusting plate 8 is fixed on one side of the sliding plate 7, a fixing plate 9 is fixed on one side of the adjusting plate 8, and a hydraulic cylinder 10 is fixed on one side of the fixing plate 9; a collection pipe 11 is fixed to the output shaft of the hydraulic cylinder 10; a filter box 12 is fixed to the upper surface of the sliding plate 7, and a suction pump 13 is fixed to the upper surface of the sliding plate 7; a first connecting pipe 14 connects the collection pipe 11 and the filter box 12, and a second connecting pipe 15 connects the side of the filter box 12 away from the first connecting pipe 14 to the input end of the suction pump 13; a vent pipe 16 is fixed to the bottom of the collection pipe 11, a suction pipe 17 is fixed to the bottom of the vent pipe 16, and a movable plate 18 is fixed to the outside of the vent pipe 16.

[0027] Specifically, the upper surface of the filter box 12 has several mounting grooves 19, and the filter plate 20 is slidably connected inside the mounting groove 19; the upper surface of the filter plate 20 is fixed with a first connecting strip 21, and the two sides of the mounting groove 19 are fixed with second connecting strips 22; the surfaces of the first connecting strip 21 and the second connecting strip 22 are both opened with threaded holes 23.

[0028] Furthermore, a limit block 24 is fixed on the upper surface of the movable plate 18, and a limit groove 25 is opened on the surface of the adjusting plate 8; the limit block 24 is slidably connected to the limit groove 25; a placement groove 26 is opened on the surface of the adjusting plate 8, and the vent pipe 16 slides in the placement groove 26.

[0029] The operation process of this embodiment is as follows: Align the positioning block 3 at the bottom of the mounting plate 4 with the positioning hole 2 at the top of the gear heat treatment machine body 1, insert the positioning block 3 to achieve initial positioning, and ensure that the mounting plate 4 is stably placed above the heat treatment machine body 1. Pull the handles 30 on the fixing strips 28 on both sides of the mounting plate 4 to stretch the tension spring 29 and drive the locking rod 31 to move outward. Adjust the position of the mounting plate 4 so that the locking rod 31 is aligned with the mounting holes 27 on both sides of the heat treatment machine body 1, release the handles 30, the tension spring 29 returns to its original position, and the locking rod 31 passes through the fixing strip 28 and is locked in place. Mounting holes 27 are used to fix the mounting plate 4. The filter plate 20 is inserted into the mounting groove 19 on the upper surface of the filter box 12. The filter plate 20 can be made of a suitable filter material, such as activated carbon, HEPA filter, or other compatible materials, depending on the smoke composition. The filter plate 20 is inserted until it is fully embedded in the mounting groove 19. The first connecting strip 21 on the upper surface of the filter plate 20 is aligned with the second connecting strips 22 on both sides of the mounting groove 19. Bolts are inserted through the threaded holes 23 on both surfaces and tightened to fix the filter plate 20, preventing it from being impacted by airflow during filtration. When the gear heat treatment machine body 1 heats the disc gear and generates smoke, the motor 501 in the transmission device 5 and the suction pump 13 on the slide plate 7 are simultaneously activated. The suction pump 13 creates a negative pressure in the filter box 12 through the second connecting pipe 15. The smoke enters the ventilation pipe 16 through the suction pipe 17, and then enters the filter box 12 through the collection pipe 11 and the first connecting pipe 14. The smoke passes through several layers of filter plates 20 in the filter box 12. The filtration of multiple layers of filter plates 20 can improve the purification effect. The filtered clean gas passes through the second connecting pipe 14. Pipe 15 is discharged by suction pump 13; the smoke drawn in is filtered by several filter plates 20 inside the filter box 12, which can filter harmful substances in multiple layers, effectively purify the smoke generated by heat treatment, reduce the harm to the environment and operators, and the mounting groove 19 on its upper surface is slidably connected to the filter plate 20. Combined with the design of the first connecting strip 21, the second connecting strip 22 and the threaded hole 23, the filter plate can be quickly disassembled and installed, which is convenient for cleaning and replacing the filter plate or flexibly replacing different types of filter plates according to the smoke composition, ensuring the continuity of the filtration effect.

[0030] For a specific embodiment two, please refer to Figure 4-6 Based on the first specific embodiment, the transmission device 5 includes a motor 501, which is fixedly connected to the mounting plate 4; a rotating rod 502 is fixed to the output shaft of the motor 501, and a bracket 503 is fixed to the upper surface of the mounting plate 4; the bracket 503 is rotatably connected to the rotating rod 502, and a main moving plate 504 is rotatably connected to the outside of the rotating rod 502.

[0031] Specifically, a secondary moving plate 505 is rotatably connected to the end of the main moving plate 504 away from the motor 501; a connecting frame 506 is fixed on the upper surface of the slide plate 7, and the end of the secondary moving plate 505 away from the main moving plate 504 is rotatably connected to the connecting frame 506.

[0032] Furthermore, mounting holes 27 are fixed on both sides of the gear heat treatment machine body 1; fixing strips 28 are fixed on both sides of the mounting plate 4, a tension spring 29 is fixed on one side of the fixing strip 28, and a handle 30 is fixed on one end of the tension spring 29; a locking rod 31 is fixed on one end of the handle 30, the locking rod 31 passes through the fixing strip 28, and one end of the locking rod 31 is inserted into the mounting hole 27.

[0033] The operation process of this embodiment is as follows: When it is necessary to adjust the collection range, the hydraulic cylinder 10 on one side of the adjusting plate 8 is activated, and its output shaft extends and retracts, driving the collection pipe 11 to move laterally. The vent pipe 16 slides in the placement groove 26 on the surface of the adjusting plate 8. At the same time, the movable plate 18 on the outside of the vent pipe 16 moves with it, and the limiting block 24 on the movable plate 18 slides in the limiting groove 25 of the adjusting plate 8 to ensure the stable movement of the vent pipe 16, thereby achieving fine adjustment of the lateral position of the suction pipe 17 to adapt to the lateral drift range of the smoke. The output shaft of the motor 501 rotates, driving the rotating rod 502 at one end to rotate. The main moving plate 504 on the outside of the rotating rod 502 rotates at a certain angle, and through linkage, it drives the connecting frame 506 on the slide plate 7 from the moving plate 505, so that the slide plate 7 slides forward along the sliding grooves 6 on both sides of the mounting plate 4. When the slide plate 7 moves to the set distance, the output shaft of the motor 501 reverses, and the main moving plate 504 rotates in the opposite direction. By pulling back the connecting frame 506 from the moving plate 505, the slide plate 7 slides backward, forming a reciprocating motion. The reciprocating motion of the slide plate 7 expands the longitudinal collection range of the exhaust pipe 17. With the lateral fine adjustment driven by the hydraulic cylinder 10, the exhaust pipe 17 can fully cover the smoke drifting area above the heat treatment machine, ensuring that the smoke is collected without dead angles. The motor 501 of the transmission device 5 drives the rotating rod 502 to rotate. Through the linkage between the main moving plate 504 and the driven moving plate 505, the slide plate 7 is driven to reciprocate along the slide groove 6, thereby expanding the collection range of the exhaust pipe 17. With the lateral adjustment of the hydraulic cylinder 10, it can fully cover the smoke area above the gear heat treatment machine body 1, greatly improving the smoke collection efficiency.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ring gear heat treatment smoke filtering device comprising a gear heat treatment machine body (1), characterized in that: The gear heat treatment machine body (1) has a positioning hole (2) on its top. The positioning hole (2) is movably connected to a positioning block (3), the top of the positioning block (3) is fixed with a mounting plate (4), and the top of the mounting plate (4) is fixed with a transmission device (5). The mounting plate (4) has grooves (6) fixed on both sides, and a sliding plate (7) is slidably connected inside the grooves (6). An adjusting plate (8) is fixed to one side of the sliding plate (7), a fixing plate (9) is fixed to one side of the adjusting plate (8), and a hydraulic cylinder (10) is fixed to one side of the fixing plate (9). The output shaft of the hydraulic cylinder (10) is fixed with a collection pipe (11). A filter box (12) is fixed on the upper surface of the slide plate (7), and an air pump (13) is fixed on the upper surface of the slide plate (7). A first connecting pipe (14) is connected between the collection pipe (11) and the filter box (12), and a second connecting pipe (15) is connected between the side of the filter box (12) away from the first connecting pipe (14) and the input end of the air pump (13). The bottom of the collection tube (11) is fixed with a venting tube (16), the bottom of the venting tube (16) is fixed with a suction tube (17), and a movable plate (18) is fixed on the outside of the venting tube (16).

2. A mist filtering device for heat treatment of a ring gear according to claim 1, characterized in that The filter box (12) has several mounting slots (19) on its upper surface, and a filter plate (20) is slidably connected inside the mounting slots (19). The filter plate (20) is fixed with a first connecting strip (21) on its upper surface, and the mounting groove (19) is fixed with a second connecting strip (22) on both sides. Both the first connecting strip (21) and the second connecting strip (22) have threaded holes (23) on their surfaces.

3. The device for filtering fumes from heat treatment of a ring gear according to claim 1, characterized in that, A limit block (24) is fixed on the upper surface of the movable plate (18), and a limit groove (25) is opened on the surface of the adjusting plate (8); The limiting block (24) is slidably connected to the limiting groove (25).

4. The device for filtering fumes from heat treatment of a ring gear according to claim 1, characterized in that, The adjustment plate (8) has a placement groove (26) on its surface, and the vent pipe (16) slides in the placement groove (26).

5. The device for filtering fumes from heat treatment of a ring gear according to claim 1, characterized in that, The transmission device (5) includes a motor (501), which is fixedly connected to the mounting plate (4); The output shaft of the motor (501) is fixed with a rotating rod (502), and the upper surface of the mounting plate (4) is fixed with a bracket (503). The bracket (503) is rotatably connected to the rotating rod (502), and the main moving plate (504) is rotatably connected to the outside of the rotating rod (502).

6. A mist filtering device for heat treatment of a ring gear according to claim 5, wherein The main moving plate (504) is rotatably connected to the secondary moving plate (505) at the end away from the motor (501). A connecting frame (506) is fixed on the upper surface of the sliding plate (7), and the end of the moving plate (505) away from the main moving plate (504) is rotatably connected to the connecting frame (506).

7. The smoke filtration device for heat treatment of disc gears according to claim 1, characterized in that, Mounting holes (27) are fixed on both sides of the gear heat treatment machine body (1). The mounting plate (4) is fixed with fixing strips (28) on both sides, and a tension spring (29) is fixed on one side of the fixing strip (28). A handle (30) is fixed on one end of the tension spring (29). The handle (30) is fixed with a clamping rod (31) at one end, the clamping rod (31) penetrates the fixed strip (28), and one end of the clamping rod (31) is clamped into the mounting hole (27).