Heating furnace for automobile plate spring machining

Abstract

The utility model provides a heating furnace for processing an automobile plate spring, which comprises a heating furnace body, a stable base, a spring heating structure, a pressure stabilizing structure, a connecting hinge, a sealing door and a steel plate spring support, and is characterized in that the stable base is fixedly arranged at the bottom of the heating furnace body, and the spring heating structure is fixedly arranged in the heating furnace body; the pressure stabilizing structure is fixedly mounted at the top of the heating furnace body; the connecting hinge is fixedly installed at the front end of the heating furnace body, the sealing door is installed on the connecting hinge, and the steel plate spring support is installed in the heating furnace body in a sliding mode. Due to the arrangement of the heating furnace body and the spring heating structure, the steel plate spring can be heated in all directions, and the heat utilization rate of the heating furnace is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive leaf spring processing technology, and in particular to a heating furnace for automotive leaf spring processing. Background Technology

[0002] The leaf spring is one of the main components of the automotive suspension system, serving as a connection between the wheels and the frame. In addition to bearing the weight of the car body and load, it must also withstand the impact load and vibration caused by uneven road surfaces. The leaf spring is mainly used as a shock absorber and energy storage component. It must absorb a large amount of elastic work without undergoing permanent deformation. In order to obtain the best ride comfort and good handling stability of the car, the leaf spring must have high strength and a long service life. Therefore, the control of heat treatment is particularly important.

[0003] Leaf spring processing typically requires heat treatment in a furnace to alter the material's mechanical properties and modulus of elasticity. Common heating methods include resistance wire heating, gas heating, and infrared heating. During leaf spring heat treatment, temperature and time must be carefully controlled to avoid overheating or excessive heat retention, which could damage the material or degrade its performance. The specific steps and parameters of the heat treatment should be determined based on the specific leaf spring material and processing requirements. However, existing automotive leaf spring heating furnaces still suffer from limitations in comprehensively heating the steel leaf springs and low furnace heat utilization.

[0004] Therefore, it is essential to invent a heating furnace for processing automotive leaf springs. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a heating furnace for processing automotive leaf springs, solving the issues of existing automotive leaf spring heating furnaces' inability to heat the leaf springs from all angles and low heat utilization. The heating furnace for processing automotive leaf springs includes a furnace body, a stabilizing base, a spring heating structure, a pressure stabilizing structure, a connecting hinge, a sealing door, and a leaf spring support. The stabilizing base is fixedly installed at the bottom of the furnace body, and the spring heating structure is fixedly installed inside the furnace body. The pressure stabilizing structure is fixedly installed at the top of the furnace body. The connecting hinge is fixedly installed at the front end of the furnace body, and the sealing door is installed on the connecting hinge. The leaf spring support is slidably installed inside the furnace body.

[0006] The heating furnace body includes a furnace wall, an insulation panel, a sliding groove, and an atmosphere inlet pipe. The insulation panel is fixedly installed on the inner wall of the furnace wall, and the sliding groove is opened inside the furnace wall. The atmosphere inlet pipe is fixedly installed on the outer side of the furnace wall.

[0007] The spring heating structure includes an upper heating base, a lower heating base, an outer heating component, an inner heating base, and an inner heating component. The upper heating base is fixedly installed at the top of the heating furnace body, and the lower heating base is fixedly installed at the bottom of the heating furnace body. The outer heating component is fixedly installed on the surfaces of the upper and lower heating bases, and the inner heating base is fixedly installed at the middle position inside the heating furnace body. The inner heating component is fixedly installed on the upper and lower surfaces of the inner heating base.

[0008] The heating furnace body is a horizontally placed cylindrical heating furnace, and the furnace body wall is made of bricks. The heat insulation surface is made of a layer of concrete mortar. The sliding groove consists of two sets of parallel grooves, and the atmosphere input pipe penetrates the furnace body wall, which can input gas into the interior of the heating furnace body.

[0009] The upper heating base, lower heating base and inner heating base inside the spring heating structure are separated by a gap, and their shape is consistent with that of a bent steel leaf spring; the outer heating component and the inner heating component both adopt dry-burning type heating tubes and are evenly distributed on the surface of the upper heating base, lower heating base and inner heating base.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. The heating furnace body of this utility model is designed to create a sealed heating space through brick-built furnace walls and concrete insulation lining, with a sealing door ensuring airtightness. An internal sliding groove guides the precise positioning of the leaf spring support, and the cylindrical design matches the curvature of the leaf spring to improve thermal efficiency. Protective gas can be injected through the atmosphere input pipe, and in conjunction with a pressure stabilizing structure, the internal pressure is controlled, enabling efficient and uniform heating while possessing excellent heat resistance and energy-saving characteristics.

[0012] 2. The spring heating structure of this utility model, through the upper heating base, lower heating base, and inner heating base forming a three-dimensional heating space, combined with the dry-burning heating tubes of the outer and inner heating components, achieves uniform heating of the leaf spring in a surrounding manner. The gap between the components precisely matches the bending shape of the leaf spring, avoiding heating blind spots, improving thermal efficiency, and ensuring stable and reliable heat treatment quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the heating furnace body of this utility model.

[0015] Figure 3 This is a schematic diagram of the spring heating structure of this utility model.

[0016] In the picture:

[0017] Heating furnace body 1, furnace wall 11, insulation surface 12, sliding groove 13, atmosphere input pipe 14, stabilizing base 2, spring heating structure 3, upper heating base 31, lower heating base 32, outer heating component 33, inner heating base 34, inner heating component 35, pressure stabilizing structure 4, connecting hinge 5, sealing door 6, steel leaf spring bracket 7. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] As attached Figure 1 To be continued Figure 3 As shown.

[0020] This utility model provides a heating furnace for processing automotive leaf springs, comprising a heating furnace body 1, a stabilizing base 2, a spring heating structure 3, a pressure stabilizing structure 4, a connecting hinge 5, a sealing door 6, and a leaf spring bracket 7. The stabilizing base 2 is fixedly installed at the bottom of the heating furnace body 1, and the spring heating structure 3 is fixedly installed inside the heating furnace body 1. The pressure stabilizing structure 4 is fixedly installed at the top of the heating furnace body 1. The connecting hinge 5 is fixedly installed at the front end of the heating furnace body 1, and the sealing door 6 is installed on the connecting hinge 5. The leaf spring bracket 7 is slidably installed inside the heating furnace body 1.

[0021] The heating furnace body 1 includes a furnace wall 11, an insulation surface 12, a sliding groove 13, and an atmosphere input pipe 14. The insulation surface 12 is fixedly installed on the inner wall of the furnace wall 11, and the sliding groove 13 is opened inside the furnace wall 11. The atmosphere input pipe 14 is fixedly installed on the outer side of the furnace wall 11.

[0022] The spring heating structure 3 includes an upper heating base 31, a lower heating base 32, an outer heating component 33, an inner heating base 34, and an inner heating component 35. The upper heating base 31 is fixedly installed at the top inside the heating furnace body 1, and the lower heating base 32 is fixedly installed at the bottom inside the heating furnace body 1. The outer heating component 33 is fixedly installed on the surfaces of the upper heating base 31 and the lower heating base 32, and the inner heating base 34 is fixedly installed at the middle position inside the heating furnace body 1. The inner heating component 35 is fixedly installed on the upper and lower surfaces of the inner heating base 34.

[0023] The heating furnace body 1 is a horizontally placed cylindrical heating furnace, and the furnace wall 11 is made of bricks. The heat insulation surface 12 is made of a layer of concrete mortar. The sliding groove 13 is made of two sets of parallel grooves, and the atmosphere input pipe 14 penetrates the furnace wall 11. The atmosphere input pipe 14 can input gas into the interior of the heating furnace body 1.

[0024] The upper heating base 31, lower heating base 32 and inner heating base 34 inside the spring heating structure 3 are separated by a gap, and their shape is consistent with that of a bent steel leaf spring; the outer heating component 33 and the inner heating component 35 are both dry-burning type heating tubes, and are evenly distributed on the surface of the upper heating base 31, lower heating base 32 and inner heating base 34.

[0025] This automotive leaf spring heating furnace constructs a sealed heat treatment space through the furnace body 1, and achieves three-dimensional heating through the spring heating structure 3: the upper heating base 31 and the lower heating base 32 provide radiant heating to the outer side of the leaf spring, while the inner heating base 34, in conjunction with the inner heating assembly 35, provides inner heating. The leaf spring support 7 is precisely positioned along the sliding groove 13, protective gas is injected through the atmosphere input pipe 14, and the pressure stabilizing structure 4 maintains the working pressure. The equipment operates according to a preset process curve, and the heat-insulating surface 12 effectively reduces heat loss. Combined with the airtight design of the sealing door 6, it achieves highly efficient and energy-saving leaf spring heat treatment, solving problems such as uneven heating and severe oxidation in traditional methods.

[0026] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A heating furnace for processing automotive leaf springs, characterized in that: The furnace includes a heating furnace body (1), a stabilizing base (2), a spring heating structure (3), a pressure stabilizing structure (4), a connecting hinge (5), a sealing door (6), and a steel plate spring bracket (7), wherein: the stabilizing base (2) is fixedly installed at the bottom of the heating furnace body (1), and the spring heating structure (3) is fixedly installed inside the heating furnace body (1), and the pressure stabilizing structure (4) is fixedly installed at the top of the heating furnace body (1); the connecting hinge (5) is fixedly installed at the front end of the heating furnace body (1), and the sealing door (6) is installed on the connecting hinge (5), and the steel plate spring bracket (7) is slidably installed inside the heating furnace body (1).

2. The heating furnace for processing automotive leaf springs as described in claim 1, characterized in that: The heating furnace body (1) includes a furnace wall (11), a heat insulation surface (12), a sliding groove (13), and an atmosphere input pipe (14). The heat insulation surface (12) is fixedly installed on the inner wall of the furnace wall (11), and the sliding groove (13) is opened inside the furnace wall (11). The atmosphere input pipe (14) is fixedly installed on the outer side of the furnace wall (11).

3. The heating furnace for processing automotive leaf springs as described in claim 1, characterized in that: The spring heating structure (3) includes an upper heating base (31), a lower heating base (32), an outer heating component (33), an inner heating base (34), and an inner heating component (35). The upper heating base (31) is fixedly installed at the top inside the heating furnace body (1), and the lower heating base (32) is fixedly installed at the bottom inside the heating furnace body (1). The outer heating component (33) is fixedly installed on the surfaces of the upper heating base (31) and the lower heating base (32), and the inner heating base (34) is fixedly installed in the middle position inside the heating furnace body (1). The inner heating component (35) is fixedly installed on the upper and lower surfaces of the inner heating base (34).

4. The heating furnace for processing automotive leaf springs as described in claim 2, characterized in that: The heating furnace body (1) is a horizontally placed cylindrical heating furnace, and the furnace wall (11) is made of bricks. The heat insulation surface (12) is made of a layer of concrete mortar. The sliding groove (13) is made of two sets of parallel grooves, and the atmosphere input pipe (14) penetrates the furnace wall (11). The atmosphere input pipe (14) can input gas into the interior of the heating furnace body (1).

5. The heating furnace for processing automotive leaf springs as described in claim 3, characterized in that: The upper heating base (31), lower heating base (32) and inner heating base (34) inside the spring heating structure (3) have gaps, and their shape is consistent with that of a bent steel leaf spring; the outer heating component (33) and the inner heating component (35) both adopt dry-burning type heating tubes and are evenly distributed on the surface of the upper heating base (31), lower heating base (32) and inner heating base (34).

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