A surface hardening heat treatment device for a gear coupling

Abstract

The utility model discloses a gear coupling's surface hardening heat treatment device relates to gear coupling processing technical field. The utility model discloses a quenching box, heating box, pivot and lifting plate, the quenching box top fixedly connected with heating box, and the quenching box is rotatably connected with the pivot in, and the pivot week side fixedly connected with the rotating plate, and the rotating plate horizontal department top is provided with the lifting plate, and the lifting plate bottom fixedly connected with heating pipe, and heating box top fixedly connected with the smoke exhaust pipe, and the top fixedly connected with the smoke exhaust machine of smoke exhaust pipe. The utility model discloses a smoke exhaust pipe, carousel, rotating plate, positioning rod, locating disc, lifting plate, heating pipe and smoke exhaust machine are set up, and the problem that a large amount of heat escapes when adding and taking out gear coupling of the surface hardening heat treatment device of current gear coupling has been solved, and the problem of high heating energy consumption, and the problem of toxic and harmful gas escape.

Description

Technical Field

[0001] This utility model belongs to the field of gear coupling processing technology, and in particular relates to a surface hardening heat treatment device for gear couplings. Background Technology

[0002] The core function of gear couplings is to connect two shafts, achieve torque transmission, compensate for installation misalignment, absorb vibration, and ensure stable operation of the transmission system. They are widely used in heavy machinery, machine tools, and other equipment. The gear teeth of gear couplings bear enormous contact stress and friction. Untreated tooth surfaces are prone to wear, pitting, and even breakage, affecting service life and transmission accuracy. Hardening treatment can significantly improve tooth surface hardness, wear resistance, and fatigue strength, extending service life and reducing maintenance costs. To harden the surface of gear couplings, heat treatment is usually required: the gear coupling is rapidly heated using heating equipment, and then quenched in a hardening liquid to improve surface hardness. However, currently available surface hardening heat treatment devices for gear couplings still have the following problems during use: After the gear coupling is heated in the heating chamber, special equipment is needed to remove the gear coupling from the heating chamber and then quench it. During the process of removing the heated coupling and putting in the unheated coupling, the door of the heating chamber is opened, and a large amount of heat inside the heating chamber is dissipated into the air, causing the temperature inside the heating chamber to drop. When heating the coupling later, it is necessary to reheat it, which increases energy consumption. The heating chamber has a large interior space. The conventional method of heating couplings is to heat the air inside the entire heating chamber through heating tubes, and then the air inside the heating chamber transfers the heat to the coupling. This heating method has high energy consumption. Quenching processes generate a large amount of toxic and harmful gases. Conventional quenching tanks are set up in the open air, and these toxic and harmful gases are directly emitted into the air, polluting the air and damaging the health and lives of workers.

[0003] To address these issues, we provide a surface hardening heat treatment apparatus for gear couplings. Utility Model Content

[0004] The purpose of this utility model is to provide a surface hardening heat treatment device for gear couplings. By setting up a smoke exhaust pipe, a turntable, a rotating plate, a positioning rod, a positioning disk, a lifting plate, a heating pipe, and a smoke exhaust fan, it solves the problems of large heat loss, high heating energy consumption, and toxic and harmful gas emission when adding and removing gear couplings in existing surface hardening heat treatment devices for gear couplings.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a surface hardening heat treatment device for a gear coupling, including a quenching box, a heating box, a rotating shaft, and a lifting plate; the heating box is fixedly connected to the center of the top of the quenching box; a rotating groove is opened through the top of the quenching box on both sides of the heating box; a rotating groove is opened through the bottom of both sides of the heating box; a rotating shaft that is rotatably connected to the quenching box is arranged in the rotating groove below the rotating groove; a cross-shaped rotating plate is fixedly connected to the circumference of the rotating shaft. When performing surface hardening heat treatment on gear couplings, the gear coupling is first fixed on the plate of a rotating plate located outside the quenching and heating chambers. Then, the rotating plate rotates 90° to transport the gear coupling into the heating chamber for heating. During heating, the unprocessed gear coupling is re-fixed on the plate of the rotating plate outside the quenching and heating chambers. After heating, the rotating plate rotates another 90°, and the unprocessed gear coupling is again re-fixed on the plate of the rotating plate outside the quenching and heating chambers. At this time, the first batch of gear couplings enters the quenching chamber for quenching. After the second batch of gear couplings has finished heating, the rotating plate... The plate continues to rotate 90°, and the unprocessed gear coupling is re-fixed on the plate surface outside the quenching box and heating box. The heating box heats the third gear coupling, and the quenching box quenches the second gear coupling. After the third gear coupling is heated, the plate continues to rotate 90°, the heating box heats the fourth gear coupling, and the quenching box quenches the third gear coupling. The first gear coupling is removed and the unprocessed gear coupling is fixed. This cycle is repeated to achieve continuous surface hardening heat treatment of the gear coupling. A lifting plate is provided above the horizontal part of the rotating plate inside the heating box, and four heating tubes arranged in a linear array are fixedly connected to the bottom of the lifting plate; When an unheated coupling enters the heating chamber, the lifting plate descends, bringing the heating tube closer to the gear coupling for heating, thus reducing energy consumption. After heating is complete, the lifting plate rises so that the heating tube will not affect the rotation of the rotating plate, and then the rotating plate rotates to transport the gear coupling that has not undergone heat treatment.

[0006] Furthermore, turntables are fixedly connected to the circumference of the rotating shafts at both ends of the rotating plate. Positioning rods arranged in a linear array are fixedly connected to the top and bottom of the horizontal part of the rotating plate near the two ends, and to both sides of the vertical part near the two ends. Positioning rods are threaded to the end away from the rotating plate with a positioning disc. When fixing the gear coupling, first unload the positioning plate, put the gear coupling around the positioning rod, and then screw the positioning plate back on to fix the top of the gear coupling. This completes the fixing of the gear coupling. When heating, the turntable, in conjunction with the lifting plate and the rotating plate, concentrates the heat emitted by the heating tube near the gear coupling, reducing energy consumption.

[0007] Furthermore, two motors are fixedly connected to one side of the quenching box, and the output shaft of each motor is connected to a rotating shaft at its adjacent end for transmission. When the motor is started, the output shaft of the motor rotates, which in turn drives the rotating shaft to rotate, thereby driving the rotating plate and turntable to rotate, and thus carrying out the conveying work of the gear coupling.

[0008] Furthermore, from a frontal view, the top height of the lifting plate is the same as the height of the higher end of the vertical part of the rotating plate, and the heating tubes and positioning rods are staggered. Heating tubes are evenly distributed around the gear coupling to heat it, ensuring uniform heating.

[0009] Furthermore, two symmetrically arranged cylinders are fixedly connected to the top of the heating box, and the piston rods at the telescopic ends of the cylinders are fixedly connected to the top of the lifting plate adjacent to them; The cylinder is activated, and the piston rod at the cylinder's extension and retraction end extends and retracts, causing the lifting plate to rise and fall, thereby raising and lowering the heating element.

[0010] Furthermore, limit rods are fixedly connected to the top of the lifting plate near both ends, and the limit rods extend upward through the heating box; The setting of the limit rod makes the lifting operation of the lifting platform more stable.

[0011] Furthermore, a smoke exhaust pipe is fixedly connected through the center of the top of the heating box, and a smoke exhaust fan is fixedly connected to the top of the smoke exhaust pipe; The toxic and harmful gases generated during the quenching process are drawn by the exhaust fan and enter the toxic and harmful gas treatment device through the exhaust pipe and exhaust fan for treatment before being discharged.

[0012] This utility model has the following beneficial effects: This invention solves the problem of significant heat loss during the addition and removal of gear couplings by setting up a rotating plate, a positioning rod, and a positioning disc. When heating the gear coupling, the positioning disc exposed outside the quenching box and heating box is removed, the gear coupling is fitted onto the positioning rod, and then the positioning disc is screwed back on for fixation. After the gear coupling in the heating box has been heated, the rotating plate rotates to transport the unheated gear coupling into the heating box for heating. The conveying speed is greatly improved compared to the traditional conveying speed, thereby reducing heat loss.

[0013] This invention solves the problem of high heating energy consumption by setting up a turntable, a rotating plate, a lifting plate, and a heating tube. When heating the coupling, the lifting plate descends so that the heating tube is located on the side of the coupling. Due to the setting of the turntable, rotating plate, and lifting plate, the heat energy emitted by the heating tube is limited to the vicinity of the coupling, directly heating the coupling and achieving the purpose of reducing energy consumption.

[0014] This invention solves the problem of toxic and harmful gas escape by setting up a smoke exhaust pipe and a smoke exhaust fan; the smoke exhaust fan is connected to a toxic and harmful gas treatment device. A large amount of toxic and harmful gases generated during the quenching process rise and are drawn into the toxic and harmful gas treatment device through the smoke exhaust pipe under the action of the smoke exhaust fan for treatment, thus preventing toxic and harmful gases from polluting the air.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] 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.

[0017] Figure 1 A schematic diagram of a surface hardening heat treatment device for a gear coupling; Figure 2 This is a cross-sectional schematic diagram of the quenching box and the heating box; Figure 3 A schematic diagram showing the connection structure between the quenching box and the heating box; Figure 4 This is a front view of the quenching box and heating box after they have been disassembled. Figure 5 A schematic diagram of the connection structure between the rotating plate and the positioning rod; Figure 6 A structural breakdown diagram of the positioning rod and positioning disc; Figure 7 A schematic diagram of the connection structure between the lifting plate and the heating element; The attached diagram lists the components represented by each number as follows: 1. Quenching box; 101. Rotary slot one; 2. Heating box; 201. Rotary slot two; 202. Exhaust pipe; 3. Rotating shaft; 301. Turntable; 302. Rotating plate; 303. Positioning rod; 304. Positioning disc; 305. Motor; 4. Lifting plate; 401. Heating tube; 402. Cylinder; 403. Limiting rod; 5. Exhaust fan. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0019] Please see Figure 1-7 This utility model is a surface hardening heat treatment device for a gear coupling, including a quenching box 1, a heating box 2, a rotating shaft 3 and a lifting plate 4; the heating box 2 is fixedly connected to the center of the top of the quenching box 1; a rotating groove 101 is opened through the top of the quenching box 1 on both sides of the heating box 2; a rotating groove 201 is opened through the bottom of both sides of the heating box 2; a rotating shaft 3 is rotatably connected to the quenching box 1 in the rotating groove 101 below the rotating groove 201; and a cross-shaped rotating plate 302 is fixedly connected to the circumference of the rotating shaft 3. The quenching chamber 1 is filled with quenching liquid, and the heating chamber 2 is equipped with a heating device. During the surface hardening heat treatment of the gear coupling, the gear coupling is first fixed on the plate surface of the rotating plate 302 located outside the quenching chamber 1 and the heating chamber 2. Then, the rotating plate 302 rotates 90° to transport the gear coupling into the heating chamber 2 for heating. During the heating process, the unprocessed gear coupling is fixed on the plate surface of the rotating plate 302 located outside the quenching chamber 1 and the heating chamber 2. After heating, the rotating plate 302 continues to rotate 90°, and the unprocessed gear coupling is again fixed on the plate surface of the rotating plate 302 located outside the quenching chamber 1 and the heating chamber 2. At this time, the first gear coupling added enters the quenching chamber 1 for quenching. After the second gear coupling added has finished heating, the rotating plate 302 continues to rotate 90°, and the unprocessed gear coupling is transported into the heating chamber 2 for heating. 2. An unprocessed gear coupling is fixed on the plate outside the quenching box 1 and the heating box 2. The third gear coupling is heated in the heating box 2, and the second gear coupling is quenched in the quenching box 1. After the third gear coupling is heated, the rotating plate 302 continues to rotate 90°. The fourth gear coupling is heated in the heating box 2, and the third gear coupling is quenched in the quenching box 1. The first gear coupling is removed and the unprocessed gear coupling is fixed. This cycle is repeated to achieve continuous surface hardening heat treatment of the gear coupling. While improving work efficiency, this method of rotating the plate 302 to transport the gear coupling greatly increases the transport speed compared to the traditional transport method and reduces the heat loss in the heating box 2. A lifting plate 4 is provided above the horizontal part of the rotating plate 302 inside the heating box 2. Four heating tubes 401 arranged in a linear array are fixedly connected to the bottom of the lifting plate 4. When an unheated coupling enters the heating chamber 2, the lifting plate 4 descends, bringing the heating tube 401 closer to the gear coupling for heating. Because the heating tube 401 is close to the gear coupling, the heat can be directly conducted to the gear coupling, reducing energy consumption. After heating is completed, the lifting plate 4 rises so that the heating tube 401 will not affect the rotation of the rotating plate 302. The rotating plate 302 then rotates to transport the gear coupling for heating and quenching.

[0020] Among them, such as Figure 1-5 As shown, a turntable 301 is fixedly connected to the rotating shaft 3 at both ends of the rotating plate 302. Positioning rods 303 arranged in a linear array are fixedly connected to the top and bottom of the horizontal part of the rotating plate 302 near the two ends, and to both sides of the vertical part near the two ends. Positioning rods 303 are threaded to the end away from the rotating plate 302 with a positioning disk 304. When fixing the gear coupling, first unload the positioning plate 304, then put the gear coupling around the positioning rod 303, and then screw the positioning plate 304 back on to fix the end of the gear coupling. This completes the fixing of the gear coupling. When heating, the turntable 301, together with the lifting plate 4 and the rotating plate 302, concentrates the heat emitted by the heating tube 401 near the gear coupling, reducing energy consumption. The setting of multiple positioning rods 303 can fix and heat multiple gear couplings at the same time, improving work efficiency.

[0021] Among them, such as Figure 1 , Figure 2 As shown, two motors 305 are fixedly connected to one side of the quenching box 1. The output shaft of each motor 305 is connected to a rotating shaft 3 and its adjacent end via a transmission. Start motor 305. The output shaft of motor 305 rotates, which drives the rotating shaft 3 to rotate, and in turn drives the rotating plate 302 and the turntable 301 to rotate, so as to carry out the conveying work of the gear coupling.

[0022] Among them, such as Figure 4 As shown, from a frontal view, the top height of the lifting plate 4 is the same as the height of the higher end of the vertical part of the rotating plate 302, and the heating tube 401 and the positioning rod 303 are staggered. Heating tubes 401 are evenly distributed around the gear coupling to heat the gear coupling, ensuring uniform heating and preventing cracking caused by uneven heating.

[0023] Among them, such as Figure 1-4 As shown, two symmetrically arranged cylinders 402 are fixedly connected to the top of the heating box 2, and the piston rod of the telescopic end of the cylinder 402 is fixedly connected to the top of the lifting plate 4 nearby. When cylinder 402 is activated, the piston rod at the telescopic end of cylinder 402 extends and retracts, causing the lifting plate 4 to rise and fall, thereby raising and lowering the heating tube 401.

[0024] Among them, such as Figure 1-4 As shown, limit rods 403 are fixedly connected to the top of the lifting plate 4 near both ends, and the limit rods 403 extend upward through the heating box 2; The setting of the limit rod 403 makes the lifting operation of the lifting plate 4 more stable.

[0025] Among them, such as Figure 1-4 As shown, a smoke exhaust pipe 202 is fixedly connected to the center of the top of the heating box 2, and a smoke exhaust fan 5 is fixedly connected to the top of the smoke exhaust pipe 202. The exhaust fan 5 is connected to an external toxic and harmful gas treatment device. The toxic and harmful gases generated during the quenching process rise from the gap between the two rotating plates 302, are drawn by the exhaust fan 5, and enter the toxic and harmful gas treatment device through the exhaust pipe 202 and the exhaust fan 5 for treatment before being discharged.

[0026] The working principle of this embodiment is as follows: When performing surface hardening heat treatment on the gear coupling, first unload the positioning plate 304 located on the plate surface outside the quenching box 1 and heating box 2 of the rotating plate 302, and then fit the gear coupling around the positioning rod 303. Next, re-screw the positioning plate 304 to fix the end of the gear coupling, completing the fixing work of the gear coupling. Then, start the motor 305, and the rotating plate 302 rotates 90° to transport the gear coupling into the heating box 2. Start the cylinder 402, and the piston rod at the telescopic end of the cylinder 402 extends, driving the lifting plate 4 to descend, thereby lowering the heating tube 401. Heating tube 401 is placed near the gear coupling for heating. During the heating process, the unprocessed gear coupling is fixed on the plate surface of the rotating plate 302 located outside the quenching box 1 and heating box 2. During heating, the rotating plate 301, in conjunction with the lifting plate 4 and the rotating plate 302, concentrates the heat emitted by the heating tube 401 near the gear coupling, reducing energy consumption. After heating is complete, the lifting plate 4 rises, causing the heating tube 401 to rise, ensuring that the heating tube 401 does not affect the rotation of the rotating plate 302. Then, the rotating plate 302 continues to rotate 90°, and the heating tube 401 descends to heat the second gear coupling added. The unprocessed gear coupling is fixed again. At this time, the first gear coupling is added and enters the quenching box 1 for quenching. The toxic and harmful gases generated during the quenching process rise from the gap between the two rotating plates 302, are drawn by the exhaust fan 5, and enter the toxic and harmful gas treatment device through the exhaust pipe 202 and the exhaust fan 5 for treatment before being discharged. After the second gear coupling is heated, the rotating plate 302 continues to rotate 90° to fix the unprocessed gear coupling externally. The third gear coupling is heated in the heating box 2, and the second gear coupling is heated in the quenching box 1. After the third gear coupling is heated, the rotating plate 302 continues to rotate 90°. The fourth gear coupling is heated in the heating box 2, and the third gear coupling is quenched in the quenching box 1. The first gear coupling is removed and the unprocessed gear coupling is fixed. This cycle is repeated to achieve continuous surface hardening heat treatment of the gear coupling. This improves work efficiency. Compared with the traditional conveying method, the conveying speed of this rotating plate 302 is greatly improved, and the heat loss in the heating box 2 is reduced.

[0027] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A surface hardening heat treatment apparatus for a gear coupling, comprising a quenching chamber (1), a heating chamber (2), a rotating shaft (3), and a lifting plate (4); characterized in that: A heating box (2) is fixedly connected to the top center of the quenching box (1). A rotating groove (101) is opened through the top of the quenching box (1) on both sides of the heating box (2). A rotating groove (201) is opened through the bottom of both sides of the heating box (2). A rotating shaft (3) is provided in the rotating groove (101) below the rotating groove (201) and is rotatably connected to the quenching box (1). A cross-shaped rotating plate (302) is fixedly connected around the rotating shaft (3). A lifting plate (4) is provided above the horizontal part of the rotating plate (302) inside the heating box (2), and four heating tubes (401) arranged in a linear array are fixedly connected to the bottom of the lifting plate (4).

2. The surface hardening heat treatment device for a gear coupling according to claim 1, characterized in that: Turntables (301) are fixedly connected to the circumference of the rotating shafts (3) at both ends of the rotating plate (302). Positioning rods (303) arranged in a linear array are fixedly connected to the top and bottom of the horizontal part of the rotating plate (302) near the two ends, and to both sides of the vertical part near the two ends. Positioning discs (304) are threaded to the end of the positioning rods (303) away from the rotating plate (302).

3. The surface hardening heat treatment device for a gear coupling according to claim 1, characterized in that: Two motors (305) are fixedly connected to one side of the quenching box (1), and the output shaft of each motor (305) is connected to a rotating shaft (3) at its adjacent end.

4. The surface hardening heat treatment device for a gear coupling according to claim 1, characterized in that: From a frontal view, the top height of the lifting plate (4) is the same as the height of the higher end of the vertical part of the rotating plate (302), and the heating tube (401) and the positioning rod (303) are staggered.

5. The surface hardening heat treatment device for a gear coupling according to claim 1, characterized in that: The top of the heating box (2) is fixedly connected to two symmetrically arranged cylinders (402), and the piston rod of the telescopic end of the cylinder (402) is fixedly connected to the top of the lifting plate (4) adjacent to it.

6. The surface hardening heat treatment apparatus for a gear coupling according to claim 5, characterized in that: The lifting plate (4) is fixedly connected to a limit rod (403) at the top near both ends, and the limit rod (403) extends upward through the heating box (2).

7. The surface hardening heat treatment apparatus for a gear coupling according to claim 1, characterized in that: A smoke exhaust pipe (202) is fixedly connected to the center of the top of the heating box (2), and a smoke exhaust fan (5) is fixedly connected to the top of the smoke exhaust pipe (202).

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