Hub casting heat treatment device

Abstract

The utility model discloses a hub casting heat treatment device which comprises a furnace body, a furnace chamber is arranged in the furnace body, a feed port is arranged at one end of the furnace body, a discharge port is arranged at the other end of the furnace body, a heating layer is arranged on the lower portion of the furnace chamber of the furnace body, a heating device is installed in the heating layer, and a conveying layer is arranged above the heating layer. A plurality of pairs of conveying roller sets are sequentially installed in the conveying layer, each pair of conveying roller sets comprises a driving roller and a driven roller, and a movable lifting roller is arranged between every two adjacent pairs of conveying roller sets. According to the heat treatment device for the hub casting, online heat treatment of the hub casting is realized, and the heat treatment efficiency of the hub casting is improved. And the heat treatment process of each hub casting can be independently controlled, so that hub castings of different materials and different sizes and specifications can be subjected to online heat treatment in the same furnace body, and the utilization efficiency of equipment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat treatment of wheel hub castings, and particularly relates to a heat treatment device for wheel hub castings. Background Art

[0002] The wheel hub prepared by the casting method needs to be machined by slag removal, cutting, drilling and other processing in the later stage. During the machining process, certain internal stresses exist inside the material. These internal stresses are generally eliminated by heat treatment. In the existing wheel hub heat treatment process, the wheel hub is placed in a heat treatment furnace, and the heat treatment process is completed after heating, heat preservation, cooling and other heat treatment processes. In this heat treatment process, each furnace can only process a specific number of wheel hubs, and the loading and unloading processes take a lot of time. Each furnace can only perform one heat treatment process for wheel hubs of specific specifications. Therefore, the existing heat treatment furnace has low efficiency and poor flexibility in heat treatment of wheel hubs, and needs to be improved. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: a wheel hub casting heat treatment device includes a furnace body, a furnace cavity is arranged inside the furnace body, a feed port is arranged at one end of the furnace body, and a discharge port is arranged at the other end, a heating layer is arranged at the lower part of the furnace cavity of the furnace body, a heating device is installed in the heating layer, a conveying layer is arranged above the heating layer, and several pairs of conveying roller groups are sequentially installed in the conveying layer, each pair of conveying roller groups includes an active roller and a driven roller, the active roller and the driven roller are arranged in parallel, the active roller is driven to rotate by a rotating drive mechanism, movable lifting rollers are respectively arranged between two adjacent pairs of conveying roller groups, deflection plates are respectively arranged at both ends of the movable lifting roller, the movable lifting roller is rotatably connected to the deflection plate, the lower end of the deflection plate is connected to the lifting plate by a spring, and the lifting plate is driven to rise and fall by the lifting drive mechanism, fixed lifting rollers are respectively arranged at both ends of the conveying layer, fixed plates are respectively arranged at both ends of the fixed lifting roller, the fixed lifting roller is rotatably connected to the fixed plate, and the fixed plate is driven to move up and down by the up and down moving drive mechanism.

[0004] As a preferred embodiment of the above technical solution, guide plates are respectively provided at both ends of the movable lifting roller, the guide plates are respectively fixedly connected to the furnace body, the upper part of the guide plate has an arc section which gradually bends from bottom to top toward the discharge port, and the guide plate is located between the feed port and the corresponding movable lifting roller.

[0005] As a preferred embodiment of the above technical solution, a partition is provided between the heating layer and the conveying layer, and a plurality of heating ports are provided on the partition, the heating ports respectively corresponding to a pair of conveying roller groups, and the heating ports are located directly below the corresponding conveying roller groups, and the heating device includes a plurality of rows of flame gun groups, each row of flame gun groups corresponds to a heating port, each row of flame gun groups includes a plurality of flame guns arranged in sequence, and the flame guns in each row of flame gun groups are supplied with gas by the same gas pipeline, and a flow regulating valve is provided on the gas pipe.

[0006] As a preferred embodiment of the above technical solution, a temperature sensor is installed at the heating port.

[0007] As a preferred embodiment of the above technical solution, the rotation drive mechanism includes a rotation motor, the lifting drive mechanism includes a lifting cylinder or a linear motor, and the up and down movement drive mechanism includes a lifting cylinder or a linear motor.

[0008] The beneficial effects of the utility model are as follows: the wheel hub casting heat treatment device of the utility model realizes the online heat treatment of the wheel hub casting, and greatly improves the heat treatment efficiency of the wheel hub casting. The heat treatment process of each wheel hub casting can be controlled separately, so that wheel hub castings of different materials and different sizes can be heat treated online in the same furnace body, thereby improving the utilization efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural schematic diagram of the utility model from another angle. DETAILED DESCRIPTION

[0011] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0014] like Figure 1-2 As shown, the heat treatment device for the hub casting 20 includes a furnace body 1, a furnace cavity is provided inside the furnace body 1, a feed port 2 is provided at one end of the furnace body 1, and a discharge port 3 is provided at the other end. A heating layer 4 is provided at the lower part of the furnace cavity of the furnace body 1, a heating device is installed in the heating layer 4, a conveying layer 5 is provided above the heating layer 4, and a plurality of pairs of conveying roller groups 6 are sequentially installed in the conveying layer 5, each pair of conveying roller groups 6 includes a driving roller 7 and a driven roller 8, the driving roller 7 and the driven roller 8 are arranged in parallel, the driving roller 7 is driven to rotate by a rotating drive mechanism, and the adjacent There are movable lifting rollers 9 between the two pairs of conveying roller groups 6. Deflection plates 10 are provided at both ends of the movable lifting rollers 9. The movable lifting rollers 9 are rotatably connected to the deflection plates 10. The lower end of the deflection plate 10 is connected to a lifting plate 12 through a spring 11. The lifting plate 12 is driven to move up and down by a lifting drive mechanism. Fixed lifting rollers 13 are provided at both ends of the conveying layer 5. Fixed plates 14 are provided at both ends of the fixed lifting rollers 13. The fixed lifting rollers 13 are rotatably connected to the fixed plates 14. The fixed plates 14 are driven to move up and down by an up and down moving drive mechanism. By controlling the lifting and lowering of the movable lifting rollers 9, the hub casting 20 can be pushed to move in the furnace body 1, so that the hub casting 20 is heat-treated simultaneously during the conveying process, thereby realizing the online heat treatment of the hub casting 20.

[0015] Furthermore, guide plates 15 are respectively provided at both ends of the movable lifting roller 9, the guide plates 15 are respectively fixedly connected to the furnace body 1, and the upper part of the guide plate 15 has an arc section 16 that gradually bends from bottom to top toward the discharge port 3, and the guide plate 15 is located between the feed port 2 and the corresponding movable lifting roller 9. After the movable lifting roller 9 rises, the hub casting 20 is pushed toward the discharge port 3 by the guiding effect of the guide plate 15, so that the hub casting 20 moves toward the discharge port 3.

[0016] Furthermore, a partition 17 is provided between the heating layer 4 and the conveying layer 5, and a plurality of heating ports 18 are provided on the partition 17, and the heating ports 18 correspond to a pair of conveying roller groups 6 respectively, and the heating ports 18 are located directly below the corresponding conveying roller groups 6, and the heating device includes a plurality of rows of flame guns 19 groups, and each row of flame guns 19 groups corresponds to a heating port 18, and each row of flame guns 19 groups includes a plurality of flame guns 19 arranged in sequence, and the flame guns 19 in each row of flame guns 19 groups are supplied with gas from the same gas pipeline, and a flow regulating valve is provided on the gas pipeline. The high temperature ejected by the flame gun 19 performs heat treatment on the hub at each heating port 18. The hub at the heating port 18 rotates continuously to ensure that heat treatment can be performed everywhere.

[0017] Furthermore, a temperature sensor is installed at the heating port 18. The temperature sensor senses the temperature at the heating port 18, and the flame gun 19 controls the flame size according to the temperature data of the heating port 18 sensed by the temperature sensor, thereby controlling the temperature at the heating port 18.

[0018] Furthermore, the rotary drive mechanism includes a rotary motor, the lifting drive mechanism includes a lifting cylinder or a linear motor, and the up-and-down movement drive mechanism includes a lifting cylinder or a linear motor.

[0019] When the above-mentioned heat treatment device for hub casting 20 is used, the following steps are included: the hub casting 20 to be heat treated is placed from the feed port 2 onto a pair of conveying rollers 6 closest to the discharge port 3 in the conveying layer 5, the active rollers 7 and the driven rollers 8 in the conveying rollers 6 form a supporting effect on the hub casting 20, and the fixed lifting rollers 13 and the movable lifting rollers 9 on both sides of the hub casting 20 form a limiting effect on both sides of the hub casting 20; the rotary drive mechanism drives the corresponding rotating active rollers 7 to rotate, driving the hub casting 20 to rotate; the heating device is started to heat the hub casting 20; the movable lifting rollers 9 on the side of the hub casting 20 close to the discharge port 3 are lowered, and the fixed lifting rollers 13 or the movable lifting rollers 9 on the other side are raised for a distance, so that the hub casting 20 is transferred to the next pair of conveying rollers 6, and the heat treatment is continued by using the corresponding heating device; the above steps are repeated until the hub casting 20 passes through the last pair of conveying rollers 6 and is discharged from the discharge port 3, completing the heat treatment of the hub casting 20.

[0020] Furthermore, the rotation speed of the active roller 7 and the heating temperature of the heating device are adjusted according to the different specifications of the hub casting 20. In this way, the rotation speed and heat treatment temperature of a single hub can be controlled in the furnace body 1, so that hubs of multiple different specifications can be subjected to targeted heat treatment at the same time in the furnace body 1.

[0021] It is worth mentioning that the technical features such as the motor, cylinder, flame gun 19 involved in this utility model patent application should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0022] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. Wheel hub casting heat treatment device, characterized in that: The invention comprises a furnace body, wherein a furnace cavity is arranged inside the furnace body, a material feed port is arranged at one end of the furnace body, and a material discharge port is arranged at the other end. A heating layer is arranged at the lower part of the furnace cavity of the furnace body, a heating device is installed in the heating layer, a conveying layer is arranged above the heating layer, and a plurality of pairs of conveying roller groups are sequentially installed in the conveying layer, each pair of conveying roller groups comprises an active roller and a driven roller, the active roller and the driven roller are arranged in parallel, the active roller is driven to rotate by a rotating driving mechanism, movable lifting rollers are respectively arranged between two adjacent pairs of conveying roller groups, deflection plates are respectively arranged at both ends of the movable lifting rollers, the movable lifting rollers are rotatably connected to the deflection plates, the lower end of the deflection plate is connected to a lifting plate by a spring, and the lifting plate is driven to rise and fall by the lifting driving mechanism, fixed lifting rollers are respectively arranged at both ends of the conveying layer, fixed plates are respectively arranged at both ends of the fixed lifting rollers, the fixed lifting rollers are rotatably connected to the fixed plates, and the fixed plates are driven to move up and down by an up and down moving driving mechanism.

2. The wheel hub casting heat treatment device according to claim 1, characterized in that: Guide plates are respectively provided at both ends of the movable lifting rollers, which are respectively fixedly connected to the furnace body. The upper part of the guide plate has an arc section that gradually bends from bottom to top toward the discharge port. The guide plate is located between the feed port and the corresponding movable lifting roller.

3. The wheel hub casting heat treatment device according to claim 1, characterized in that: A partition is provided between the heating layer and the conveying layer, and a plurality of heating ports are provided on the partition, and the heating ports correspond to a pair of conveying roller groups respectively, and the heating ports are located directly below the corresponding conveying roller groups. The heating device includes a plurality of rows of flame gun groups, and each row of flame gun groups corresponds to a heating port. Each row of flame gun groups includes a plurality of flame guns arranged in sequence, and the flame guns in each row of flame gun groups are supplied with gas by the same gas pipeline, and a flow regulating valve is provided on the gas pipe.

4. The wheel hub casting heat treatment device according to claim 3, characterized in that: A temperature sensor is installed at the heating port.

5. The wheel hub casting heat treatment device according to claim 1, characterized in that: The rotary drive mechanism includes a rotary motor, the lifting drive mechanism includes a lifting cylinder or a linear motor, and the up-and-down moving drive mechanism includes a lifting cylinder or a linear motor.

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