Intermediate heating furnace for aluminum alloy forged hub

Abstract

The utility model relates to the technical field of hub heating furnaces, and provides an aluminum alloy forged hub middle heating furnace which comprises a furnace body, a left heating cabin and a right heating cabin are arranged in the furnace body, a feeding port and a discharging port are formed in the two ends of the furnace body respectively, and a furnace door assembly is arranged on the furnace body. The heating assembly is arranged on the furnace body and used for heating the interiors of the left heating cabin and the right heating cabin, the bottom of the left heating cabin and the bottom of the right heating cabin are each communicated with a set of exhaust assembly, and the outer sides of the left heating cabin and the right heating cabin are both coated with heat preservation and insulation layers; and the material conveying unit comprises a conveying assembly and an adjusting assembly, the conveying assembly comprises a frame body and a conveying chain, the conveying chain is connected with the bottom ends of the inner sides of the left heating cabin and the right heating cabin through guide supporting assemblies, and the adjusting assembly is used for adjusting the tension degree of the conveying chain. The machining efficiency of the aluminum alloy hub can be improved, the possibility that the hub falls off due to the fact that the chain is affected by thermal expansion and cold contraction can be avoided, and meanwhile the use safety of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub heating furnace technology, specifically to an intermediate heating furnace for aluminum alloy forged wheel hubs. Background Technology

[0002] Intermediate heating furnaces are a key piece of equipment in the manufacturing process of aluminum alloy wheels. In the processing technology of aluminum alloy wheels, especially in forging or certain special casting-forging composite processes, intermediate heating furnaces are used to heat the aluminum alloy billets or semi-finished wheels that have undergone preliminary processing (such as pre-forming). Their main function is to heat the aluminum alloy material to a suitable temperature range for subsequent processing. A suitable heating temperature enables the aluminum alloy material to have good plastic deformation ability, reduces the deformation resistance of the material, and thus allows it to be successfully formed into the final wheel shape in subsequent processes.

[0003] Current aluminum alloy wheel heating furnaces have low operating efficiency. The furnace temperature needs to be adjusted individually for different stages of heating aluminum alloy wheels. For example, the temperature requirement is around 450℃ during the forming heating stage, and around 530-540℃ during the heat treatment stage. Before some surface treatments, the wheels may also need to be heated to around 100-200℃. A single heating furnace cannot adequately meet these requirements. Furthermore, the wheels are typically transported by chain conveyors in the heating furnace, but the chain's ability to support the wheels after thermal expansion and contraction can affect their support, potentially causing the wheels to tilt or even fall off. The excessively high temperature of the exhaust gas from the heating furnace can also pose a safety hazard to workers.

[0004] Therefore, in order to address the above problems, an intermediate heating furnace for aluminum alloy forged wheel hubs is proposed. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing an intermediate heating furnace for aluminum alloy forged wheel hubs. This invention can improve the processing efficiency of aluminum alloy wheel hubs, avoid the possibility of wheel hubs falling off due to thermal expansion and contraction of the chain, and improve the safety of the device.

[0006] To achieve the above objectives, this utility model employs the following technical solution:

[0007] An intermediate heating furnace for aluminum alloy forged wheel hubs includes a furnace body with a left heating chamber and a right heating chamber running through it. Each end of the left and right heating chambers has a feed inlet and a discharge outlet, respectively. Furnace door assemblies are installed on the furnace body outside the feed inlets and discharge outlets, used to open and close them. Heating components are connected to the upper interior of both the left and right heating chambers for heating their contents. These heating components are mounted on the furnace body. An exhaust assembly is connected to the bottom of each of the left and right heating chambers. Support frames are installed below both the left and right heating chambers, and the outer sides of both heating chambers are covered with heat insulation layers. The system also includes a material conveying unit, which comprises a conveying assembly and an adjusting assembly. The conveying assembly includes a frame and a conveyor chain. The frame is located at both ends of the furnace body outside the inlet and outlet. The conveyor chain passes through the left and right heating chambers and connects to the frames at both ends. Wheel hubs are placed on the conveyor chain and can be moved. The conveyor chain is connected to the bottom of the inner side of both the left and right heating chambers via guide support assemblies. The adjusting assembly is used to adjust the tension of the conveyor chain.

[0008] Preferably, the conveying assembly also includes a drive shaft and a driven shaft, which are respectively mounted on the frames at both ends of the furnace body. The axes of the drive shaft and the driven shaft are parallel to each other and perpendicular to the hub conveying direction. One end of the drive shaft is connected to the output end of the conveying power component, which is mounted on the frame. The driven shaft is connected to an adjustment component, which is mounted on the frame. At least two sprockets are coaxially mounted on both the drive shaft and the driven shaft, and the sprockets on the drive shaft and the driven shaft correspond to each other. The corresponding sprockets are connected by a conveying chain, so that the length direction of the conveying chain is parallel to the length direction of the left heating chamber and the right heating chamber. Friction teeth are provided on the side of the conveying chain away from the sprockets for contacting the hub.

[0009] Preferably, the adjustment assembly includes a sliding block and an adjustment power component. The frame on which the adjustment assembly is mounted has a sliding groove, the length direction of which is parallel to the length direction of the conveyor chain. An insert plate is mounted on the sliding block and is slidably inserted into the sliding groove. The sliding block is mounted at both ends of the driven shaft, and the output end of the adjustment power component is connected to each sliding block. The adjustment power component is mounted on the frame and is used to drive the sliding block to move along the length direction of the sliding groove.

[0010] Preferably, the guide support assembly includes a support plate and a guide plate. The support plate is disposed at the bottom of the inner side of the left and right heating chambers along the length of the conveyor chain, and is located directly below and in contact with each conveyor chain. The two ends of the support plate extend out of the feed inlet and discharge outlet, and the two ends of the support plate are wedge-shaped to avoid affecting the movement of the conveyor chain. Guide plates are disposed on both sides of the support plate near the feed inlet and discharge outlet, and the guide plates are arched with the arch opening facing away from the conveyor chain to prevent the conveyor chain from slipping off the support plate and to guide the conveying direction of the conveyor chain. The height of the highest point of the guide plate is lower than the height of the highest point of the conveyor chain to avoid interfering with the movement of the hub.

[0011] Preferably, a sliding frame is vertically installed on the furnace body outside the feed inlet and discharge outlet. The furnace door assembly includes a door body, which is slidably mounted on the sliding frame on both sides, with the sliding direction perpendicular to the ground. Pullers are installed on both the furnace body and the upper end of the sliding frame. A connecting rope is laid between the pullers. One end of the connecting rope is connected to the door body, and the other end of the connecting rope is connected to the output end of the lifting power component, which is located on the side of the furnace body.

[0012] Preferably, the heating assembly includes a flat flame burner that extends into the left and right heating chambers and is connected to a gas pipeline and an air pipeline.

[0013] Preferably, the exhaust assembly includes an exhaust pipe, and multiple exhaust holes are provided at the bottom of both sides of the left and right heating chambers. The exhaust holes are connected to the exhaust pipe, and the end of the exhaust pipe away from the exhaust holes is connected to the exhaust box.

[0014] Preferably, the exhaust box includes a cavity one and a cavity two. One end of the upper side of cavity one is connected to an exhaust pipe, and the other end is connected to an inner exhaust pipe. A partition is provided inside cavity one so that the airflow direction inside cavity one is U-shaped. Coolant is provided inside cavity two. The end of the inner exhaust pipe away from cavity one is inserted into the bottom of the coolant. The top of cavity two is connected to a ventilator through a duct.

[0015] Preferably, grooves for accommodating the support plates are provided on the furnace body at the bottom of the inlet and outlet, and receiving grooves for accommodating the conveyor chain are provided on the bottom side of the door body.

[0016] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages:

[0017] 1. This utility model sets two furnace chambers in one furnace body, and both furnace chambers can heat aluminum alloy wheels. The temperature in the two furnace chambers can be freely set to adapt to the heating of aluminum alloy wheels with different temperature requirements. For small and medium-sized manufacturers, there is no need to purchase two machines for heating with different temperature requirements, which reduces production costs and improves economic efficiency and the efficiency of aluminum alloy wheel preheating processing.

[0018] 2. By setting an adjustment component, this utility model can always keep the conveyor chain taut, avoid the influence of thermal expansion and contraction on the length of the conveyor chain, and thus prevent the hubs on the conveyor chain from tilting or falling off, thereby improving the stability of the device.

[0019] 3. By setting up a guide support component, this utility model can further support the conveyor chain, avoid excessive pressure on the conveyor chain from the hub during long-term use of the device, thus reducing the service life of the conveyor chain. The guide plate can prevent the conveyor chain from derailing from the sprocket, thus improving the stability of the device. Furthermore, friction teeth are set on the side of the conveyor chain that contacts the hub, which improves the conveying efficiency and increases friction, thus preventing the hub from slipping off.

[0020] 4. By setting up an exhaust assembly, this utility model can cool and discharge the gas at the bottom of the left and right heating chambers, thus avoiding excessively high exhaust temperatures that could harm workers and improving the safety of the device. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the main structure of the present invention with the door removed;

[0024] Figure 3 This is a schematic diagram of the overall structure of the furnace body removal according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the overall structure of the material removal and conveying unit according to an embodiment of the present invention;

[0026] Figure 5 This is a front view schematic diagram of the exhaust assembly connection according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the structure of a portion of the chain in an embodiment of the present utility model;

[0028] Figure 7 This is a cross-sectional structural diagram of the exhaust box according to an embodiment of the present utility model.

[0029] In the diagram, 1. Furnace body; 2. Left heating chamber; 3. Right heating chamber; 4. Furnace door assembly; 5. Heating assembly; 6. Exhaust assembly; 7. Conveying assembly; 8. Adjusting assembly; 9. Guide support assembly; 10. Support frame; 11. Slide; 41. Door; 42. Pulley; 43. Connecting rope; 44. Lifting power component; 45. Receiving slot; 51. Flat flame burner; 61. Exhaust pipe; 62. Exhaust hole; 63. Exhaust box; 631. Cavity 1; 632. Cavity 2; 633. Inner exhaust pipe; 634. Middle partition; 635. Coolant; 636. Air duct; 71. Frame; 72. Conveyor chain; 73. Drive shaft; 74. Driven shaft; 75. Conveying power component; 76. Sprocket; 77. Friction tooth; 81. Sliding block; 82. Adjusting power component; 83. Sliding groove; 91. Support plate; 92. Guide plate. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] like Figures 1 to 7 As shown, this utility model provides a technical solution:

[0032] A furnace for intermediate heating of aluminum alloy forged wheel hubs includes a furnace body 1, with a left heating chamber 2 and a right heating chamber 3 running through it. The furnace body 1 serves as an outer shell protecting the internal structure and is constructed with a steel frame. An inner lining made of ceramic fiber material is installed inside the furnace body 1. Inlet and outlet ports are respectively located at both ends of the left heating chamber 2 and the right heating chamber 3. Furnace door assemblies 4 are installed on the furnace body 1 outside the inlet and outlet ports, used to open and close the inlet and outlet ports. Heating components 5 are connected to the upper interior of both the left and right heating chambers 2 and 3, used to heat the interior of the chambers. The heating components 5 are located above the furnace body 1. An exhaust assembly 6 is connected to the bottom of each of the left and right heating chambers 2 and 3. Support frames 10 are installed below both the left and right heating chambers 2 and 3, used to support the chambers. The outer sides of heating chamber 3, left heating chamber 2, and right heating chamber 3 are all covered with thermal insulation layers. The thermal insulation layers are located on the side of the inner lining away from the furnace body 1 and are made of high-temperature rock wool. The heating chamber 3 also includes a material conveying unit, which includes a conveying component 7 and an adjusting component 8. The conveying component 7 includes a frame 71 and a conveyor chain 72. The frame 71 is located at both ends of the furnace body 1 outside the feed inlet and discharge outlet. The conveyor chain 72 passes through the left heating chamber 2 and right heating chamber 3 and connects to the frame 71 at both ends. The conveyor chain 72 is used to place the hub and can drive the hub to move. The bottom of the conveyor chain 72 and the inner side of the left heating chamber 2 and right heating chamber 3 are connected by a guide support component 9, and the conveyor chain 72 can slide on the guide support component 9. The adjusting component 8 is used to adjust the tension of the conveyor chain 72, which can always keep the conveyor chain 72 taut and avoid gaps caused by thermal expansion and contraction.

[0033] In an optional embodiment, the conveying assembly 7 further includes a drive shaft 73 and a driven shaft 74, which are rotatably mounted on the frames 71 at both ends of the furnace body 1. The axes of the drive shaft 73 and the driven shaft 74 are parallel to each other and perpendicular to the conveying direction of the hub. One end of the drive shaft 73 is connected to the output end of the conveying power component 75, which is a motor and mounted on the frame 71. The driven shaft 74 is connected to an adjustment assembly 8, which is mounted on the frame 71. At least two sprockets 76 are coaxially mounted on both the drive shaft 73 and the driven shaft 74, and the sprockets 76 on the drive shaft 73 and the driven shaft 74 correspond to each other. The corresponding sprockets 76 are connected by a conveying chain 72, so that the length direction of the conveying chain 72 is parallel to the length direction of the left heating chamber 2 and the right heating chamber 3. Friction teeth 77 are provided on the side of the conveying chain 72 away from the sprockets 76 to contact the hub to increase friction, prevent the hub from shifting on the conveying chain 72 and falling off, and improve the stability of the device.

[0034] In an optional embodiment, the adjustment component 8 includes a sliding block 81 and an adjustment power component 82. The frame 71 on which the adjustment component 8 is mounted has a sliding groove 83. The length direction of the sliding groove 83 is parallel to the length direction of the conveyor chain 72. An insert plate is mounted on the sliding block 81. The insert plate is slidably inserted into the sliding groove 83, and the surface of the insert plate is in close contact with the inner wall of the sliding groove 83, so that the insert plate can only slide along the length direction of the sliding groove 83 and has no tendency to rotate. The sliding blocks 81 are located at both ends of the driven shaft 74, so that the driven shaft 74 always remains parallel to the driving shaft 73, avoiding the conveyor chain 72 from derailing from the sprocket 76 due to changes in the angle of the driven shaft 74. The output end of the adjustment power component 82 is connected to each sliding block 81. The adjustment power component 82 is selected as an electric actuator or a hydraulic rod. The adjustment power component 82 is mounted on the frame 71 and is used to drive the sliding block 81 to move along the length direction of the sliding groove 83, thereby improving the stability of the conveyor chain 72.

[0035] In an optional embodiment, the guide support assembly 9 includes a support plate 91 and a guide plate 92. The support plate 91 is disposed at the bottom inside the left heating chamber 2 and the right heating chamber 3 along the length of the conveyor chain 72, and is located directly below and in contact with each conveyor chain 72. The two ends of the support plate 91 extend out of the feed inlet and the discharge outlet, and the two ends of the support plate 91 are wedge-shaped with the tips of the wedges pointing downwards to avoid affecting the movement of the conveyor chain 72. Guide plates 92 are disposed on both sides of the support plate 91 near the feed inlet and the discharge outlet, and the guide plates 92 are arched. The opening direction of each arch is towards the direction away from the conveyor chain 72 to prevent the conveyor chain 72 from slipping off the support plate 91 and to guide the conveying direction of the conveyor chain 72. The height of the highest point of the guide plate 92 is lower than the height of the highest point of the conveyor chain 72 to avoid the guide plate 92 interfering with the movement of the hub.

[0036] In an optional embodiment, a slide 11 is vertically installed on the furnace body 1 outside the feed inlet and discharge outlet. The furnace door assembly 4 includes a door body 41, which is slidably mounted on the slide 11 on both sides, with the sliding direction perpendicular to the ground. Pulleys 42 are installed on the furnace body 1 and the upper end of the slide 11. A connecting rope 43 is laid between the pulleys 42. The connecting rope 43 is made of steel wire rope. One end of the connecting rope 43 is connected to the door body 41, and the other end of the connecting rope 43 is connected to the output end of the lifting power component 44. The lifting power component 44 is an electric push rod. The lifting power component 44 is located on the side of the furnace body 1. Compared with the lifting power component 44 that is generally located directly above the door body 41, the present invention uses the pulleys 42 and the connecting rope 43 to reverse the direction, placing the lifting power component 44 on the lower side of the door body 41, saving space at the top of the device and making it easier to maintain the lifting power component 44, thus improving its practicality.

[0037] In an optional embodiment, the heating assembly 5 includes a flat flame burner 51, the output end of which extends into the left heating chamber 2 and the right heating chamber 3. Multiple sets of flat flame burners 51 are evenly arranged above the left heating chamber 2 and the right heating chamber 3 to make the temperature in all parts of the interior tend to be uniform. The flat flame burner 51 is connected to a gas pipeline and an air pipeline. The gas pipeline is used to supply natural gas, and the air pipeline is used to supply oxygen required for combustion. The flat flame burner 51 and its connecting pipeline are existing technologies and will not be described in detail here. The purpose is to enable heating into the left heating chamber 2 and the right heating chamber 3 and to control the flame size.

[0038] In an optional embodiment, the exhaust assembly 6 includes an exhaust pipe 61. Multiple evenly distributed exhaust holes 62 are provided on the bottom sides of both the left heating chamber 2 and the right heating chamber 3. The exhaust holes 62 are connected to the exhaust pipe 61. Preferably, the exhaust pipe 61 is coiled in multiple rows in the bottom space of the furnace body 1 on the outer bottom of the left heating chamber 2 and the right heating chamber 3 to extend the distance of exhaust gas flow, so that the exhaust gas is initially cooled in the exhaust pipe 61. The end of the exhaust pipe 61 away from the exhaust holes 62 is connected to the exhaust box 63.

[0039] In an optional embodiment, the exhaust box 63 includes a first cavity 631 and a second cavity 632. One end of the upper side of the first cavity 631 is connected to an exhaust pipe 61, and the other end is connected to an inner exhaust pipe 633. A partition 634 is provided inside the first cavity 631, making the airflow direction in the first cavity 631 U-shaped to extend the gas flow distance. Coolant 635 is provided in the second cavity 632. The coolant 635 can also be water. The end of the inner exhaust pipe 633 away from the first cavity 631 is inserted into the bottom of the coolant 635. The top of the second cavity 632 is connected to a ventilator through a duct 636 to cool the exhaust gas and prevent the gas temperature from being too high and causing harm to the staff. Preferably, the second cavity 632 is provided with a water inlet at the top and a water outlet at the bottom, so that the coolant 635 with excessive temperature can be discharged and new coolant 635 can be replenished in time, improving the practicality of the device and the cooling quality.

[0040] In an optional embodiment, grooves for accommodating the support plate 91 are provided on the furnace body 1 at the bottom of the inlet and outlet, and receiving grooves 45 for accommodating the conveyor chain 72 are provided on the bottom side of the door body 41, so as to minimize the outflow of hot air from the furnace without affecting the movement of the conveyor chain 72, thereby improving the economic efficiency of processing.

[0041] In an optional embodiment, a control component is also included, including multiple temperature sensors, preferably, for measuring the temperature inside the left heating chamber 2 and the right heating chamber 3. The temperature sensors are connected to a computer, which is also connected to the heating component 5 and a fan. The computer controls the size of the heating flame and the volume of the exhaust gas based on the real-time temperature. When the heating flame is large and the exhaust gas is small, the furnace can be heated; when the heating flame is small and the exhaust gas is large, the furnace can be cooled. A pressure sensor is also provided to detect the air pressure inside the left heating chamber 2 and the right heating chamber 3, preventing excessive pressure inside the furnace from damaging the device and improving the service life of the device.

[0042] Working principle: First, the heating components 5 and exhaust components 6 of the left heating chamber 2 and right heating chamber 3 are controlled respectively to bring the temperature inside the left heating chamber 2 and right heating chamber 3 to the required temperature. Then, the conveyor component 7 is started, the door 41 at the feed port is opened, and the wheel hub is placed on the conveyor chain 72 to send the wheel hub into the left heating chamber 2 and right heating chamber 3. Then, the conveyor component 7 is closed, and the door 41 is closed. Wait for the preset time. During this time, the left heating chamber 2 and right heating chamber 3 are continuously heated and vented to keep the temperature inside the chamber at the preset temperature. The exhaust gas is initially cooled by the exhaust pipe 61 and then enters the cavity 631 of the exhaust box 63. The gas enters the exhaust inner pipe 633 through the U-shaped channel and is cooled by the coolant 635 before being discharged from the air duct 636. After the wheel hub is heated, the door 41 at the discharge port is opened, and the conveyor component 7 is opened again to send the wheel hub out, completing the heating process.

[0043] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0044] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more unless otherwise explicitly specified.

[0046] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An intermediate heating furnace for aluminum alloy forged wheel hubs, comprising a furnace body (1), characterized in that, A left heating chamber (2) and a right heating chamber (3) are arranged through the furnace body (1). The left heating chamber (2) and the right heating chamber (3) are respectively provided with a feed port and a discharge port at both ends. A furnace door assembly (4) is provided on the furnace body (1) outside the feed port and the discharge port. The furnace door assembly (4) is used to open and close the feed port and the discharge port. The upper part of the left heating chamber (2) and the right heating chamber (3) are connected to a heating assembly (5) for heating the left heating chamber (2) and the right heating chamber (3). The heating assembly (5) is set on the furnace body (1). A set of exhaust assembly (6) is connected to the bottom of the left heating chamber (2) and the right heating chamber (3). A support frame (10) is provided below the left heating chamber (2) and the right heating chamber (3). The outer side of the left heating chamber (2) and the right heating chamber (3) is covered with a heat insulation layer. It also includes a material conveying unit, which includes a conveying component (7) and an adjusting component (8). The conveying component (7) includes a frame (71) and a conveying chain (72). The frame (71) is set at both ends of the furnace body (1) outside the feed inlet and the discharge outlet. The conveying chain (72) passes through the left heating chamber (2) and the right heating chamber (3) and connects to the frame (71) at both ends. The conveying chain (72) is used to place the hub and can drive the hub to move. The bottom of the conveying chain (72) and the inner side of the left heating chamber (2) and the right heating chamber (3) are connected by a guide support component (9). The adjusting component (8) is used to adjust the tension of the conveying chain (72).

2. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 1, characterized in that: The conveying assembly (7) also includes a drive shaft (73) and a driven shaft (74). The drive shaft (73) and the driven shaft (74) are respectively set on the frame (71) at both ends of the furnace body (1). The axes of the drive shaft (73) and the driven shaft (74) are parallel to each other and perpendicular to the hub conveying direction. One end of the drive shaft (73) is connected to the output end of the transmission power component (75). The transmission power component (75) is set on the frame (71). The driven shaft (74) is connected to the adjustment assembly (8). The adjustment assembly (8) is set on the frame (71). At least two sprockets (76) are coaxially set on both the drive shaft (73) and the driven shaft (74). The sprockets (76) on the drive shaft (73) and the driven shaft (74) correspond to each other. The corresponding sprockets (76) are connected by a transmission chain (72) so that the length direction of the transmission chain (72) is parallel to the length direction of the left heating chamber (2) and the right heating chamber (3). Friction teeth (77) are provided on the side of the conveyor chain (72) away from the sprocket (76) for contacting the hub.

3. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 2, characterized in that: The adjustment assembly (8) includes a sliding block (81) and an adjustment power component (82). The frame (71) on which the adjustment assembly (8) is mounted has a sliding groove (83). The length direction of the sliding groove (83) is parallel to the length direction of the conveyor chain (72). The sliding block (81) is mounted with an insert plate, which is slidably inserted into the sliding groove (83). The sliding block (81) is mounted at both ends of the driven shaft (74). The output end of the adjustment power component (82) is connected to the sliding block (81). The adjustment power component (82) is mounted on the frame (71) and is used to drive the sliding block (81) to move along the length direction of the sliding groove (83).

4. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 3, characterized in that: The guide support assembly (9) includes a support plate (91) and a guide plate (92). The support plate (91) is located at the bottom inside the left heating chamber (2) and the right heating chamber (3) along the length of the conveyor chain (72), and is located directly below and in contact with each conveyor chain (72). The two ends of the support plate (91) extend out of the feed inlet and the discharge outlet, and the two ends of the support plate (91) are wedge-shaped to avoid affecting the movement of the conveyor chain (72). The support plate (91) is provided with guide plates (92) on both sides near the feed inlet and the discharge outlet, and the guide plates (92) are arched with the arch opening facing away from the conveyor chain (72) to prevent the conveyor chain (72) from slipping off the support plate (91) and to guide the conveying direction of the conveyor chain (72). The height of the highest point of the guide plate (92) is lower than the height of the highest point of the conveyor chain (72) to avoid interfering with the movement of the hub.

5. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 4, characterized in that: A slide (11) is vertically installed on the furnace body (1) outside the feed inlet and discharge outlet. The furnace door assembly (4) includes a door body (41). The door body (41) is slidably installed on the slide (11) on both sides, and the sliding direction is perpendicular to the ground. Pulleys (42) are installed on the furnace body (1) and the upper end of the slide (11). A connecting rope (43) is laid between the pulleys (42). One end of the connecting rope (43) is connected to the door body (41), and the other end of the connecting rope (43) is connected to the output end of the lifting power component (44). The lifting power component (44) is installed on the side of the furnace body (1).

6. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 5, characterized in that: The heating assembly (5) includes a flat flame burner (51) that extends into the left heating chamber (2) and the right heating chamber (3) and is connected to the gas pipeline and the air pipeline.

7. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 6, characterized in that: The exhaust assembly (6) includes an exhaust pipe (61). Multiple exhaust holes (62) are opened at the bottom of both sides of the left heating chamber (2) and the right heating chamber (3). The exhaust holes (62) are connected to the exhaust pipe (61), and the end of the exhaust pipe (61) away from the exhaust hole (62) is connected to the exhaust box (63).

8. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 7, characterized in that: The exhaust box (63) includes a cavity one (631) and a cavity two (632). One end of the upper side of the cavity one (631) is connected to the exhaust pipe (61), and the other end is connected to the exhaust inner pipe (633). A partition plate (634) is provided inside the cavity one (631) so that the airflow direction in the cavity one (631) is U-shaped. Coolant (635) is provided in the cavity two (632). The end of the exhaust inner pipe (633) away from the cavity one (631) is inserted into the bottom of the coolant (635). The top of the cavity two (632) is connected to a ventilator through a duct (636).

9. The intermediate heating furnace for aluminum alloy forged wheel hubs according to claim 5, characterized in that: The furnace body (1) at the bottom of the inlet and outlet has grooves corresponding to the support plate (91) for accommodating the support plate (91), and the bottom side of the door body (41) has grooves corresponding to the grooves for accommodating the conveyor chain (72) for accommodating the conveyor chain (72).

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