A waste heat quenching device for wear plates of railway freight car bogie slide grooves

Abstract

This utility model discloses a waste heat quenching device for wear plates in railway freight car bogie grooves, belonging to the field of wear plate processing technology. The device includes a guide frame, a drive box installed below the guide frame, an electric cylinder installed on one side of the drive box, a quenching box installed on one side of the guide frame, a pushing plate inside the quenching box, a swing arm installed on one side of the quenching box, and a cooling oil heat exchanger between the heat exchange box and the quenching box. This utility model solves the problems of existing quenching devices having a simple structure, poor heat exchange effect, and poor positioning effect in actual use. This utility model uses quenching oil inside the quenching box for cooling, while simultaneously pushing the wear plate of the railway freight car bogie groove to move and cool. After cooling, the swing arm pushes the wear plate into the guide groove for rapid waste heat quenching.

Description

Technical Field

[0001] This utility model relates to the field of wear plate processing technology, specifically a waste heat quenching device for wear plates of railway freight car bogie grooves. Background Technology

[0002] The wear plates for railway freight car bogie slide grooves undergo their final forming process on a forging production line (such as a forging hammer or press) or a rolling production line. At this point, the workpiece temperature is extremely high, typically above 850°C-1000°C, and it appears bright orange or yellowish-white. Quenching is then required.

[0003] Chinese Patent CN109777941A discloses a waste heat quenching device and quenching process for hot-rolled and hot-forged steel balls. The quenching device includes a quenching water tank and a spiral lifting mechanism inclinedly arranged in the quenching water tank. The quenching water tank is filled with a quenching medium and is divided into a rapid cooling zone and a slow cooling zone by a support plate arranged below the spiral lifting mechanism. The spiral lifting mechanism pushes the steel ball to move from bottom to top through the rapid cooling zone and the slow cooling zone. The steel ball quenched by the above device has uniform hardness, no cracks, and improved mechanical properties.

[0004] The quenching device described in the above patent has a simple structure, poor heat exchange effect, and poor positioning effect in actual use; therefore, it does not meet the existing needs. In response, we propose a residual heat quenching device for wear plates of railway freight car bogie slide grooves. Utility Model Content

[0005] The purpose of this utility model is to provide a waste heat quenching device for wear plates of railway freight car bogie slide grooves, which solves the problems of simple structure, poor heat exchange effect and poor positioning effect of the quenching device mentioned in the background art in actual use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste heat quenching device for wear plates of railway freight car bogie slide grooves, comprising a guide frame, a drive box installed below the guide frame, an electric cylinder installed on one side of the drive box, a quenching box installed on one side of the guide frame, a push plate provided inside the quenching box, the push plate being fixedly connected to the electric cylinder, a swing arm installed on one side of the quenching box, a heat exchange box installed on one side of the quenching box, and a cooling oil heat exchanger provided between the heat exchange box and the quenching box.

[0007] Preferably, a conveyor belt is installed inside the guide frame, and a heat-insulating roller is installed outside the conveyor belt. The heat-insulating roller and the conveyor belt are rotatably connected by bearings.

[0008] Preferably, a stepper motor is installed at the rear end of the drive box, and the motor shaft of the stepper motor is connected to the electric cylinder via a reducer.

[0009] Preferably, a telescopic rod is installed at the front end of the electric cylinder, the telescopic rod is connected to the electric cylinder in a transmission manner, one end of the telescopic rod extends into the interior of the quenching box and is slidably connected to the quenching box, and the telescopic rod is sealed to the quenching box through a sealing sleeve.

[0010] Preferably, one end of the telescopic rod is fixedly connected to the push plate, the push plate is slidably connected to the quenching box via a slide rail, and both the push plate and the swing arm have integrally formed openings on their surfaces.

[0011] Preferably, a rotating rod is installed in the middle of the quenching box, a servo motor is installed below the rotating rod, the motor shaft of the servo motor is fixedly connected to the rotating rod through a coupling, and one side of the rotating rod is fixedly connected to a swing arm.

[0012] Preferably, the quenching box is provided with an oil change port, which is connected to a cooling oil heat exchanger. A booster pump is installed below the cooling oil heat exchanger, and the booster pump is sealed to the heat exchange box and the cooling oil heat exchanger.

[0013] Preferably, a material guide groove is provided on one side of the interior of the quenching box, and a movable flap is installed on one side of the material guide groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In the process of using the residual heat quenching of this utility model, a guide rack is used to receive the wear plate of the railway freight car bogie slide groove from the forging production line. The plate is then received onto a conveyor belt and transported to the quenching box. It is cooled by the quenching oil inside the quenching box. Simultaneously, a stepper motor drives an electric cylinder to move a telescopic rod and a pusher plate, which in turn moves the wear plate of the railway freight car bogie slide groove. During the movement of the wear plate inside the quenching box, it undergoes cooling. After cooling, a swing arm pushes the wear plate of the railway freight car bogie slide groove into the guide trough for rapid residual heat quenching. The transfer speed or the rhythm of the previous forging is dynamically adjusted according to the temperature measurement results. By utilizing the residual heat after forging and rolling, secondary heating is eliminated. While ensuring that the slide groove wear plate obtains the required high hardness and wear resistance, energy consumption and production costs are significantly reduced. It is an important piece of equipment for green manufacturing and efficient production.

[0016] 2. In the process of using this utility model, a cooling oil heat exchanger is set between the quenching box and the heat exchange box. After the quenching oil exchanges heat inside the quenching box, the overheated quenching oil is drawn into the cooling oil heat exchanger and heats up through the cooling oil heat exchanger. The quenching oil is circulated by a booster pump. During operation, it is cooled by the heat exchange box, thus enabling continuous operation, improving work efficiency, and making it highly practical. Attached Figure Description

[0017] Figure 1 This is an axonometric view of the front view of this utility model;

[0018] Figure 2 This is a top-view axonometric drawing of the present invention;

[0019] Figure 3 This utility model Figure 2 Enlarged view of a portion of area A in the middle;

[0020] Figure 4 This is an isometric view of the side of this utility model.

[0021] In the diagram: 1. Guide frame; 101. Conveyor belt; 102. Heat insulation roller; 2. Drive box; 201. Electric cylinder; 202. Stepper motor; 203. Telescopic rod; 3. Quenching box; 301. Push plate; 302. Rotating rod; 303. Swing arm; 304. Guide chute; 305. Oil change port; 306. Through port; 307. Servo motor; 4. Heat exchange box; 401. Booster pump; 5. Cooling oil heat exchanger. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] To address the problems of existing quenching devices in practical use, such as simple structure, poor heat exchange, and inadequate positioning, please refer to... Figures 1-4 This embodiment provides the following technical solution:

[0024] This embodiment of a waste heat quenching device for wear plates of railway freight car bogie slide grooves includes a guide frame 1, a drive box 2 installed below the guide frame 1, an electric cylinder 201 installed on one side of the drive box 2, a quenching box 3 installed on one side of the guide frame 1, a push plate 301 provided inside the quenching box 3, the push plate 301 being fixedly connected to the electric cylinder 201, and a swing arm 303 installed on one side inside the quenching box 3.

[0025] The guide frame 1 is equipped with a conveyor belt 101 inside, and a heat insulation roller 102 is installed on the outside of the conveyor belt 101. The heat insulation roller 102 and the conveyor belt 101 are rotatably connected by bearings. During the residual heat quenching process, the guide frame 1 is used to receive the wear plate of the railway freight car bogie slide groove from the forging production line, receive it onto the conveyor belt 101, and transport it into the quenching box 3, where it is cooled by the quenching oil inside the quenching box 3.

[0026] It should be noted that a stepper motor 202 is installed at the rear end of the drive box 2, and the motor shaft of the stepper motor 202 is connected to the electric cylinder 201 through a reducer.

[0027] In fact, a telescopic rod 203 is installed at the front end of the electric cylinder 201. The telescopic rod 203 is connected to the electric cylinder 201 through a transmission. One end of the telescopic rod 203 extends into the interior of the quenching box 3 and is slidably connected to the quenching box 3. The telescopic rod 203 is also sealed to the quenching box 3 through a sealing sleeve. One end of the telescopic rod 203 is fixedly connected to the push plate 301. The push plate 301 is slidably connected to the quenching box 3 through a slide rail. Both the push plate 301 and the swing arm 303 have integrally formed openings 306 on their surfaces. The electric cylinder 201 is driven by the stepper motor 202 to move the telescopic rod 203 and the push plate 301, thereby moving the wear plate of the railway freight car bogie slide groove. During the movement of the wear plate of the railway freight car bogie slide groove inside the quenching box 3, the wear plate performs cooling work.

[0028] Furthermore, a rotating rod 302 is installed in the middle of the quenching box 3, and a servo motor 307 is installed below the rotating rod 302. The motor shaft of the servo motor 307 is fixedly connected to the rotating rod 302 through a coupling. One side of the rotating rod 302 is fixedly connected to the swing arm 303. After cooling, the railway freight car bogie slide wear plate is pushed into the guide groove 304 through the swing arm 303 for rapid residual heat quenching. The transfer speed or the rhythm of the previous forging is dynamically adjusted according to the temperature measurement results. The residual heat after forging and rolling is utilized, eliminating the need for secondary heating. While ensuring that the slide wear plate obtains the required high hardness and wear resistance, it significantly reduces energy consumption and production costs. It is an important piece of equipment for green manufacturing and efficient production.

[0029] Specifically, in the residual heat quenching process, the guide rack 1 receives the wear plate of the railway freight car bogie slide groove from the forging production line and onto the conveyor belt 101, which then transports it into the quenching box 3. The wear plate is cooled by quenching oil inside the quenching box 3. Simultaneously, a stepper motor 202 drives an electric cylinder 201 to move a telescopic rod 203 and a pusher plate 301, thus moving the wear plate. During this movement within the quenching box 3, the wear plate undergoes cooling. After cooling, the swing arm 303 pushes the wear plate into the guide trough 304 for rapid residual heat quenching. The transfer speed or the rhythm of the preceding forging process is dynamically adjusted based on temperature measurements. This method utilizes the residual heat from forging and rolling, eliminating the need for secondary heating. While ensuring the wear plate achieves the required high hardness and wear resistance, it significantly reduces energy consumption and production costs, making it an important piece of equipment for green manufacturing and efficient production.

[0030] To address the issue of poor heat exchange efficiency of quenching oil in existing quenching equipment, which affects continuous operation, please refer to [link to relevant documentation]. Figures 1-4 This embodiment provides the following technical solution:

[0031] This embodiment provides a waste heat quenching device for wear plates of bogie slide rails in railway freight cars. A heat exchange box 4 is installed on one side of the quenching box 3. A cooling oil heat exchanger 5 is provided between the heat exchange box 4 and the quenching box 3. After the quenching oil exchanges heat inside the quenching box 3, the overheated quenching oil is drawn into the cooling oil heat exchanger 5 for heat exchange.

[0032] The quenching box 3 is equipped with an oil change port 305, which is connected to the cooling oil heat exchanger 5. A booster pump 401 is installed below the cooling oil heat exchanger 5. The booster pump 401 is sealed to the heat exchange box 4 and the cooling oil heat exchanger 5. The quenching oil is circulated through the booster pump 401. During operation, the oil is cooled by the heat exchange box 4, which enables continuous operation, improves work efficiency, and is highly practical.

[0033] In addition, a guide trough 304 is provided on one side of the interior of the quenching box 3. A movable flap is installed on one side of the guide trough 304. The guide trough 304 quickly positions the wear plate of the railway freight car bogie slide groove. After the quenching oil is extracted, the movable flap is opened to take out the quenched wear plate of the railway freight car bogie slide groove.

[0034] Specifically, during use, a cooling oil heat exchanger 5 is installed between the quenching box 3 and the heat exchange box 4. After the quenching oil exchanges heat inside the quenching box 3, the overheated quenching oil is drawn back into the cooling oil heat exchanger 5 for heat exchange. The quenching oil is circulated by the booster pump 401. During operation, it is cooled by the heat exchange box 4, thus enabling continuous operation, improving work efficiency, and making it highly practical.

[0035] Working Principle: During operation, the guide frame 1 receives the bogie slide wear plate from the forging production line and onto the conveyor belt 101, which then transports it to the quenching box 3. There, the plate is cooled by the quenching oil inside the box. Simultaneously, a stepper motor 202 drives an electric cylinder 201, which in turn moves a telescopic rod 203 and a pusher plate 301, thus moving the bogie slide wear plate. During this movement within the quenching box 3, the plate continues to cool. After cooling, the swing arm 303 pushes the plate into the guide trough 304 for rapid residual heat quenching. A cooling oil heat exchanger 5 is installed between the quenching box 3 and the heat exchange box 4, allowing the quenching oil to exchange heat within the quenching box 3. After heating, the overheated quenching oil is drawn back into the cooling oil heat exchanger 5 for heat exchange. The quenching oil is circulated by the booster pump 401. The guide chute 304 quickly positions the wear plate of the railway freight car bogie slide groove. After the quenching oil is extracted, the movable flap is opened to remove the quenched wear plate of the railway freight car bogie slide groove. During operation, the wear plate is cooled by the heat exchange box 4, which allows for continuous operation, improves work efficiency, and is highly practical. The transfer speed or the rhythm of the previous forging is dynamically adjusted according to the temperature measurement results. It utilizes the residual heat after forging and rolling, eliminating the need for secondary heating. While ensuring that the slide groove wear plate obtains the required high hardness and wear resistance, it significantly reduces energy consumption and production costs. It is an important piece of equipment for green manufacturing and efficient production.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A waste heat quenching device for wear plates of railway freight car bogie slide grooves, comprising a guide rack (1), characterized in that, A drive box (2) is installed below the guide frame (1). An electric cylinder (201) is installed on one side of the drive box (2). A quenching box (3) is installed on one side of the guide frame (1). A push plate (301) is provided inside the quenching box (3). The push plate (301) is fixedly connected to the electric cylinder (201). A swing arm (303) is installed on one side inside the quenching box (3). A heat exchange box (4) is installed on one side of the quenching box (3). A cooling oil heat exchanger (5) is provided between the heat exchange box (4) and the quenching box (3).

2. The waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 1, characterized in that, The guide frame (1) is equipped with a conveyor belt (101) inside, and a heat insulation roller (102) is installed on the outside of the conveyor belt (101). The heat insulation roller (102) and the conveyor belt (101) are rotatably connected by bearings.

3. The waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 1, characterized in that, A stepper motor (202) is installed at the rear end of the drive box (2), and the motor shaft of the stepper motor (202) is connected to the electric cylinder (201) through a reducer.

4. The waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 3, characterized in that, The electric cylinder (201) is equipped with a telescopic rod (203) at its front end. The telescopic rod (203) is connected to the electric cylinder (201) in a transmission manner. One end of the telescopic rod (203) extends into the interior of the quenching box (3) and is slidably connected to the quenching box (3). The telescopic rod (203) is also sealed to the quenching box (3) through a sealing sleeve.

5. A waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 4, characterized in that, One end of the telescopic rod (203) is fixedly connected to the push plate (301), and the push plate (301) is slidably connected to the quenching box (3) via a slide rail. Both the push plate (301) and the swing arm (303) have integrally formed openings (306) on their surfaces.

6. The waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 1, characterized in that, A rotating rod (302) is installed in the middle of the quenching box (3), and a servo motor (307) is installed below the rotating rod (302). The motor shaft of the servo motor (307) is fixedly connected to the rotating rod (302) through a coupling, and one side of the rotating rod (302) is fixedly connected to the swing arm (303).

7. A waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 6, characterized in that, The quenching box (3) is provided with an oil change port (305) inside. The oil change port (305) is connected to the cooling oil heat exchanger (5). A booster pump (401) is installed below the cooling oil heat exchanger (5). The booster pump (401) is sealed to the heat exchange box (4) and the cooling oil heat exchanger (5).

8. A waste heat quenching device for wear plates of railway freight car bogie slide grooves according to claim 1, characterized in that, The quenching box (3) has a material guide groove (304) on one side inside, and a movable flap is installed on one side of the material guide groove (304).

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