Efficient heat treatment device for axles

Abstract

The utility model relates to car axle efficient heat treatment device, including heating assembly, cooling assembly and positioner, heating assembly includes heating box, and the top side and the bottom side in heating box inside are equipped with heating element, and cooling assembly includes cooling box, and the top side and the bottom side in cooling box inside are equipped with cold -blast spray -out subassembly, and positioner includes back -and -forth mobile car body, and the top of back -and -forth mobile car is equipped with the mobile horizontal plate of moving towards or moving apart, and a plurality of limit cylinder no.

Description

Technical Field

[0001] This utility model relates to the field of shaft production and processing equipment technology, and in particular to a high-efficiency heat treatment device for axles. Background Technology

[0002] In the production of axles, heat treatment (such as normalizing and annealing) is a key process to improve their mechanical properties (strength, toughness, and fatigue resistance).

[0003] Existing heat treatment equipment can only process 1-2 axles at a time, and manual assistance is required for loading and unloading during heating and cooling processes. This cannot meet the production requirements of "multiple varieties, small batches, and fast cycles," resulting in a mismatch between axle forging capacity and heat treatment capacity, which seriously affects the processing efficiency of axle heat treatment. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a high-efficiency heat treatment device for axles. The specific technical solution is as follows: A high-efficiency heat treatment device for axles includes a heating component, a cooling component, a positioning component, and a base frame; the heating component and the cooling component are sequentially mounted on the top of the base frame in a horizontal direction, and the positioning component is used to transfer the axle between the heating component and the cooling component; The heating assembly includes a heating box, in which heating elements are evenly distributed on the top and bottom sides, and a temperature sensor is installed inside; the heating box has a sealed door on both sides, and two sets of opposing guide plates are provided inside near the door. The cooling assembly includes a cooling box, and cold air ejection assemblies are provided on the top and bottom sides of the cooling box. The cold air ejection assemblies include a main air outlet pipe and several branch air outlet pipes. A cold air fan is installed on the cooling box, and its air outlet pipe is connected to the main air outlet pipe. Two sealed boxes are provided on both sides of the cooling box, and two sets of opposing guide plates are provided inside near the boxes. The adjustment assembly includes a U-shaped moving car body, with a U-shaped slide rail and two sets of moving horizontal plates on its top; multiple limiting cylinders are rotatably connected to one set of moving horizontal plates, and multiple limiting cylinders are coaxially rotatably connected to the other set of moving horizontal plates; both limiting cylinders one and two have a high-temperature resistant elastic clamping layer on their inner sides. The U-shaped moving vehicle body is equipped with a moving component and a rotating part: the moving component includes an electric telescopic rod, the output rod of which is connected to a moving cross plate to drive two sets of moving cross plates to move towards each other / away from each other. The bottom of the moving cross plate is slidably connected to the top of the U-shaped slide rail via a slider; the rotating part includes a drive motor, a rotating shaft, pulleys, and a conveyor belt. The drive motor is installed on the outside of the moving cross plate. One end of the rotating shaft is connected to a limiting cylinder, and the other end passes through the moving cross plate and is equipped with a pulley. Multiple pulleys are connected by a conveyor belt. The output shaft of the drive motor is connected to one of the rotating shafts.

[0005] As a further improvement to the above technical solution, a conveyor body is provided on the side of the base frame near the cooling component for automatic unloading and transportation of the axle after heat treatment.

[0006] As a further improvement to the above technical solution, the heating element is a U-shaped electric heating tube, which is evenly distributed along the length of the heating box.

[0007] As a further improvement to the above technical solution, the air outlet branch pipe is vertically connected to the air outlet main pipe, with the pipe opening facing the axle surface. The air outlet branch pipes on the top and bottom sides are staggered to ensure that the cold air evenly covers the axle surface.

[0008] As a further improvement to the above technical solution, a controller is also included. The heating element, temperature sensor, air cooler, drive motor, and electric telescopic rod are all electrically connected to the controller to achieve automated control.

[0009] The beneficial effects of this utility model are: 1. This application can process multiple axles at a time, and with the help of automated transfer and loading / unloading, the daily heat treatment capacity can be effectively increased, solving the problem of mismatch between forging and heat treatment capacity.

[0010] 2. By arranging heating elements on both the top and bottom sides of the heating box, and staggering the air outlets from the top and bottom of the cooling box, combined with the rotation of the rotating part, the axle can be heated and cooled quickly and evenly.

[0011] 3. The spacing of the moving crossbar is adjusted by an electric telescopic rod, reducing the changeover time to less than 10 minutes; the high-temperature resistant elastic clamping layer is compatible with axles of different diameters and avoids clamping damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the heating component in this utility model; Figure 3 This is a schematic diagram of the cooling component in this utility model; Figure 4 This is a schematic diagram of the positioning component in this utility model.

[0013] Reference numerals: 1. Base frame; 2. Heating assembly; 21. Heating box; 22. Heating element; 23. Temperature sensor; 24. Guide plate one; 25. Sealed door one; 3. Cooling assembly; 31. Cooling box; 32. Air cooler; 33. Main air outlet pipe; 34. Branch air outlet pipe; 35. Sealed door two; 36. Guide plate two; 4. Conveyor body; 5. Adjustment assembly; 50. U-shaped moving car body; 51. Moving cross plate; 52. U-shaped slide rail; 53. Electric telescopic rod; 54. Rotating shaft; 541. Pulley; 542. Conveyor belt; 55. Limiting cylinder one; 56. Limiting cylinder two; 57. Drive motor. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] Example High-efficiency heat treatment device for axles, refer to Figure 1-4 The entire structure is installed on the base frame 1. The heating box 21 (insulation layer thickness 100mm, material rock wool) has 8 U-shaped electric heating tubes (heating element 22, power 2kW) installed on the top and bottom sides of the box, with a spacing of 300mm along the length direction. The temperature sensor 23 (model PT100, accuracy ±1℃) is installed in the middle of the heating box to monitor the temperature inside the box in real time. The two sealed box doors 25 and the internal guide plate 24 ensure that the U-shaped moving vehicle body 50 enters smoothly.

[0016] Specifically, the top and bottom air outlet mains 33 inside the cooling box 31 are each connected to 6 air outlet branch pipes 34, and the top and bottom branch pipes are arranged alternately. The air cooler 32 (model SF-5, air volume 5000m³ / h) is installed on the outside of the cooling box and is connected to the main air outlet 33 through a pipe; the two sealed box doors 35 on both sides (same structure as the first sealed box door) and the internal guide plate 36 serve as guides.

[0017] Specifically, the bottom of the U-shaped moving vehicle body 50 is equipped with eight universal wheels with brakes; two sets of moving cross plates 51 are symmetrically arranged on the top U-shaped slide rail 52, and the bottom of the moving cross plates 51 is slidably connected to the top of the U-shaped slide rail 52 by a slider; each set of moving cross plates 51 is equipped with five limit cylinders 55 and five limit cylinders 56, and the inner side of the limit cylinders is reinforced with silicone rubber (temperature resistant above 250℃); the electric telescopic rod 53 (model DTZ500) of the moving component drives the moving cross plates 51 to adjust the spacing; the drive motor 57 (model Y100L-4, power 3kW) of the rotating part drives the five limit cylinders 55 to rotate synchronously through the pulley 541 and the conveyor belt 542 (synchronous belt).

[0018] Specifically, the conveyor body 4 includes a roller conveyor installed at the end of the base frame 1, 500mm away from the cooling box 31, for receiving the unloaded axle.

[0019] Working principle 1. Loading and fixing: According to the axle length, the controller starts the electric telescopic rod 53, which drives the two sets of moving horizontal plates 51 to move along the U-shaped slide rail 52 to a suitable distance; insert one end of the axle into the limiting cylinder 1 55 and align the other end with the limiting cylinder 2 56. The electric telescopic rod 53 drives the moving horizontal plates 51 to move towards each other, so that the high-temperature resistant elastic clamping layer is compressed, and the 5 axles are fixed synchronously (clamping force is adjustable from 50-100N).

[0020] 2. Heating treatment: Open the sealed box door 25, and the U-shaped moving car body 50 enters the heating box 21 along the guide plate 24. Close the box door; the controller sets the heating temperature (e.g., 260℃), the heating element 22 starts, the temperature sensor 23 provides real-time temperature feedback, and the temperature is maintained after the set value is reached (e.g., 2h); at the same time, the drive motor 57 drives the axle to rotate (8r / min) to ensure uniform heating.

[0021] 3. Cooling process: After heating is completed, open the sealed box door 25, move the rotating vehicle body 50 out of the heating box and into the cooling box 31 (positioned along the guide plate 36); close the sealed box door 35, start the air cooler 32, and blow cold air through the main air outlet 33 and the branch air outlet 34 onto the rotating axle (wind speed 15m / s) to achieve rapid and uniform cooling; after cooling is completed, the air cooler stops working.

[0022] 4. Material unloading and transfer: The circular moving car body 50 moves out of the cooling box and moves above the conveyor body 4; the electric telescopic rod 53 drives the moving cross plate 51 to move apart, the axle disengages from the limiting cylinders 55 and 56, falls into the conveyor body 4, and is transferred to the next process; the circular moving car body is reset and prepared for the next batch of processing.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency heat treatment device for axles, characterized in that, The assembly includes a heating component (2), a cooling component (3), and an adjusting component (5). The heating component (2) includes a heating box (21), and heating elements (22) are provided on the top and bottom sides of the heating box (21). The cooling component (3) includes a cooling box (31), and cold air ejection components are provided on the top and bottom sides of the cooling box (31). The adjusting component (5) includes a U-shaped moving vehicle body (50), and the top of the U-shaped moving vehicle body (50) is provided with moving horizontal plates (51) that move towards or away from each other. One of the moving horizontal plates (51) is rotatably connected to multiple limiting cylinders (55) and is provided with a rotating part for driving the multiple limiting cylinders (55) to rotate synchronously. Another moving horizontal plate (51) is coaxially rotatably connected to multiple limiting cylinders (56) on the side near the limiting cylinders (55).

2. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: It also includes a base frame (1), the heating component (2) and the cooling component (3) are both located on the top of the base frame (1), and the base frame (1) has a conveyor body (4) on the side near the cooling component (3).

3. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: The heating box (21) is equipped with a sealed door (25) on both sides. Inside the heating box (21), near the sealed door (25), there are two sets of opposing guide plates (24). The two sets of guide plates (24) are used to limit the two sides of the U-shaped moving vehicle body (50). The cooling box (31) is equipped with a sealed door (35) on both sides. Inside the cooling box (31), near the sealed door (35), there are two sets of opposing guide plates (36). The two sets of guide plates (36) are used to limit the two sides of the U-shaped moving vehicle body (50).

4. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: The heating box (21) is equipped with a temperature sensor (23). The cold air ejection assembly includes an air outlet main pipe (33) installed on the top and bottom of the inner side of the cooling box (31). Several air outlet branch pipes (34) are installed on the opposite side of the two sets of air outlet main pipes (33). A cold air fan (32) is installed on the cooling box (31). The air outlet pipe of the cold air fan (32) is connected to the air outlet main pipe (33) through a pipe.

5. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: The rotating part includes a drive motor (57) mounted on a movable horizontal plate (51). One end of the limiting cylinder (55) is rotatably connected to the movable horizontal plate (51) via a rotating shaft (54). A pulley (541) is mounted on one end of each of the rotating shafts (54) away from the limiting cylinder (55). A conveyor belt (542) is connected between the pulleys (541). The output shaft of the drive motor (57) is connected to one of the rotating shafts (54).

6. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: The inner sides of both the first limiting cylinder (55) and the second limiting cylinder (56) are connected to a high-temperature resistant elastic clamping layer, which is made of styrene silicone rubber.

7. The high-efficiency heat treatment device for axles according to claim 1, characterized in that: It also includes a moving component for driving two sets of moving horizontal plates (51) to move towards each other or away from each other. The moving component includes U-shaped slide rails (52) installed on both sides of the top of the U-shaped moving vehicle body (50). The bottom of the moving horizontal plate (51) is slidably connected to the top of the U-shaped slide rail (52) by a slider. An electric telescopic rod (53) is installed on the U-shaped slide rail (52). The output rod of the electric telescopic rod (53) is connected to the moving horizontal plate (51).

Images