Protective gas device of metal material vacuum heat treatment equipment

Abstract

The utility model provides a protective gas device of metal material vacuum heat treatment equipment, which comprises the vacuum heat treatment equipment, the protective gas device is arranged on one side of the vacuum heat treatment equipment, the protective gas device is connected with the vacuum heat treatment equipment through an inflating device, and the vacuum heat treatment equipment comprises a spline shaft which is of a hollow structure. The upper end of the air blowing pipe is communicated with a protective gas device through a connecting pipe, and the lower end of the air blowing pipe is connected with an air blowing head which is arranged in vacuum heat treatment equipment. According to the utility model, the air cylinder, the spline shaft and the connecting plate drive the blowing head to move up and down, and the motor, the driving synchronous pulley, the synchronous belt and the driven synchronous pulley drive the spline shaft and the blowing head to rotate, so that protective gas can quickly and uniformly enter the vacuum heat treatment equipment, and uniform atmosphere in the whole furnace chamber is ensured; therefore, the metal material can be uniformly heated and cooled in the heat treatment process, so that the heat treatment quality and consistency of the metal material are ensured.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vacuum heat treatment equipment, in particular to a protective gas device for vacuum heat treatment equipment of metal materials. Background Art

[0002] Vacuum heat treatment refers to the process of heating, keeping warm and cooling metal materials in a vacuum environment. This treatment method has many advantages and is therefore widely used in the processing and manufacturing of metal materials. During the vacuum heat treatment of metal materials, protective gas is used for cooling. The use of protective gas for cooling plays an important role in the vacuum heat treatment of metal materials. It can reduce the occurrence of cracks and stress concentration, control the formation of grain size and structure, and promote phase transformation and solid solution treatment. Through reasonable protective gas cooling, the performance and quality of metal materials can be effectively improved.

[0003] However, the existing protective gas generally enters the vacuum processing equipment only through one air inlet. As a result, the protective gas may not be quickly and evenly distributed to all metal material surfaces when entering the vacuum heat treatment furnace, resulting in uneven cooling, which may cause a large temperature gradient between the surface and the interior of the metal material, and further lead to deformation, stress concentration and other problems. Utility Model Content

[0004] 1. Technical problems to be solved by the utility model:

[0005] The utility model provides a protective gas device for vacuum heat treatment equipment of metal materials, which is used to solve the technical problems existing in the above-mentioned background technology.

[0006] 2. Technical solution:

[0007] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a protective gas device for vacuum heat treatment equipment of metal materials, including vacuum heat treatment equipment, the vacuum heat treatment equipment is connected to a vacuum unit, a protective gas device is also provided on one side of the vacuum heat treatment equipment, the protective gas device is connected to the vacuum heat treatment equipment through an inflation device, the vacuum heat treatment equipment includes a spline shaft, the spline shaft is a hollow structure, the upper end of which is connected to the protective gas device through a connecting pipe, and the lower end is connected to a blowing head, the blowing head is arranged in the vacuum heat treatment equipment, and the spline shaft drives the blowing head to rise, fall and rotate in the vacuum heat treatment equipment.

[0008] Preferably, the vacuum heat treatment equipment is installed on a support frame, a mounting plate is further provided above the support frame, and the inflation device is provided on the mounting plate.

[0009] Preferably, the inflation device comprises a first mounting frame, a cylinder is fixedly mounted on the first mounting frame, a connecting plate is fixedly mounted on the piston rod of the cylinder, and the upper end of the spline shaft is rotatably mounted in the connecting plate.

[0010] Preferably, the inflation device includes a driving mechanism for driving the spline shaft to rotate, the driving mechanism includes a second mounting frame fixed on the mounting plate, a motor is fixedly mounted on the second mounting frame, a driving synchronous pulley is fixedly mounted on the motor shaft of the motor, the driving synchronous pulley is connected to the driven synchronous pulley through a synchronous belt, and the spline shaft is installed at the center of the driven synchronous pulley through a keyway.

[0011] Preferably, the blowing head comprises a connecting head, an air inlet is provided on the connecting head, the lower end of the spline shaft is arranged in the air inlet, a plurality of blowing branch pipes are arranged at equal distances around the connecting head, and a plurality of air nozzles are arranged on the blowing branch pipes.

[0012] 3. Beneficial effects:

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model, through the provision of a protective gas device and an air charging device, drives the blowing head to move up and down through a cylinder, a spline shaft and a connecting plate, and drives the spline shaft and the blowing head to rotate through a motor, an active synchronous pulley, a synchronous belt and a driven synchronous pulley, so that the protective gas can quickly and evenly enter the vacuum heat treatment equipment, ensuring that the atmosphere in the entire furnace chamber is uniform, so that uniform heating and cooling of the metal material during the heat treatment process can be achieved, and temperature gradients and stress concentration caused by uneven atmosphere can be avoided. The rapid entry of the protective gas into the furnace in the utility model can quickly stabilize the temperature in the furnace. During the vacuum heat treatment process, the temperature stability in the furnace is crucial to the heat treatment effect of the metal material. The rapid and uniform entry of the protective gas can effectively control the temperature fluctuation in the furnace, ensure temperature stability, and thus ensure the heat treatment quality and consistency of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the inflation device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the air blowing head of the utility model.

[0018] Reference numerals:

[0019] 1. Vacuum heat treatment equipment; 2. Support frame; 3. Vacuum unit; 4. Protective gas device; 5. Mounting plate; 6. Inflating device; 61. First mounting frame; 62. Cylinder; 63. Connecting plate; 64. Spline shaft; 65. Driving mechanism; 651. Second mounting frame; 652. Motor; 653. Active synchronous pulley; 654. Synchronous belt; 655. Driven synchronous pulley; 66. Connecting pipe; 67. Blowing head; 671. Connecting head; 672. Air inlet; 673. Blowing branch pipe; 674. Air nozzle. DETAILED DESCRIPTION

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. 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.

[0024] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. Example

[0025] Refer to the attached Figures 1 to 3 A protective gas device for vacuum heat treatment equipment of metal materials includes a vacuum heat treatment equipment 1, which is connected to a vacuum unit 3. A protective gas device 4 is also provided on one side of the vacuum heat treatment equipment 1. The protective gas device 4 is connected to the vacuum heat treatment equipment 1 through an inflation device 6. The vacuum heat treatment equipment 1 is installed on a support frame 2, and a mounting plate 5 is also provided above the support frame 2. The inflation device 6 is arranged on the mounting plate 5.

[0026] The vacuum heat treatment equipment 1 includes a spline shaft 64, which is a hollow structure. Its upper end is connected to the protective gas device 4 through a connecting pipe 66, and its lower end is connected to a blowing head 67. The blowing head 67 is arranged in the vacuum heat treatment equipment 1, and the spline shaft 64 drives the blowing head 67 to rise, fall and rotate in the vacuum heat treatment equipment 1.

[0027] The inflation device 6 comprises a first mounting frame 61 , on which a cylinder 62 is fixedly mounted, on which a connecting plate 63 is fixedly mounted the piston rod of the cylinder 62 , and the upper end of a spline shaft 64 is rotatably mounted in the connecting plate 63 .

[0028] The inflator 6 includes a driving mechanism 65 for driving the spline shaft 64 to rotate. The driving mechanism 65 includes a second mounting frame 651 fixed on the mounting plate 5. A motor 652 is fixedly mounted on the second mounting frame 651. A driving synchronous pulley 653 is fixedly mounted on the motor shaft of the motor 652. The driving synchronous pulley 653 is connected to a driven synchronous pulley 655 through a synchronous belt 654. The spline shaft 64 is installed at the center of the driven synchronous pulley 655 through a keyway. The spline shaft 64 can be driven to move up and down in the keyway through the cylinder 62 and the connecting plate 63. At the same time, the spline shaft 64 can also be driven to rotate when the driven synchronous pulley 655 rotates.

[0029] The air blowing head 67 includes a connecting head 671 , which is provided with an air inlet 672 , in which the lower end of the spline shaft 64 is arranged, and a plurality of air blowing branch pipes 673 are arranged at equal distances around the connecting head 671 , and a plurality of air nozzles 674 are arranged on the air blowing branch pipes 673 .

[0030] Working principle:

[0031] The protective gas device 4 delivers protective gas to the inflation device 6 through the vacuum pump and the connecting pipe 66, and drives the blowing head 67 to move up and down through the cylinder 62, the spline shaft 64 and the connecting plate 63. The connecting pipe 66 adopts a hose, which is convenient for following the spline shaft 64 to move up and down. The spline shaft 64 and the blowing head 67 are driven to rotate by the motor 652, the active synchronous pulley 653, the synchronous belt 654 and the driven synchronous pulley 655. In addition, the protective gas enters the connector 671 and the blowing branch pipe 673 through the spline shaft 64, and then enters the vacuum heat treatment equipment 1 through the gas nozzle 674, so that it can enter the interior of the vacuum heat treatment equipment 1 more evenly and in a larger range, so that the protective gas can quickly and evenly enter the vacuum heat treatment equipment 1, ensuring that the atmosphere in the entire furnace cavity is uniform.

[0032] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A protective gas device for vacuum heat treatment equipment of metal materials, characterized in that: The invention comprises a vacuum heat treatment device (1), wherein the vacuum heat treatment device (1) is connected to a vacuum unit (3), a protective gas device (4) is further provided on one side of the vacuum heat treatment device (1), and the protective gas device (4) is connected to the vacuum heat treatment device (1) via an air charging device (6), and the vacuum heat treatment device (1) comprises a spline shaft (64), wherein the spline shaft (64) is a hollow structure, wherein the upper end of the spline shaft (64) is connected to the protective gas device (4) via a connecting pipe (66), and the lower end of the spline shaft (64) is connected to a gas blowing head (67), wherein the gas blowing head (67) is provided in the vacuum heat treatment device (1), and the spline shaft (64) drives the gas blowing head (67) to rise, fall and rotate in the vacuum heat treatment device (1).

2. The protective gas device for vacuum heat treatment equipment of metal materials according to claim 1, characterized in that: The vacuum heat treatment equipment (1) is mounted on a support frame (2), a mounting plate (5) is further provided above the support frame (2), and the inflation device (6) is provided on the mounting plate (5).

3. The protective gas device for vacuum heat treatment equipment of metal materials according to claim 1, characterized in that: The inflation device (6) comprises a first mounting frame (61), a cylinder (62) being fixedly mounted on the first mounting frame (61), a connecting plate (63) being fixedly mounted on the piston rod of the cylinder (62), and an upper end of the spline shaft (64) being rotatably mounted in the connecting plate (63).

4. The protective gas device for vacuum heat treatment equipment of metal materials according to claim 2, characterized in that: The inflation device (6) comprises a driving mechanism (65) for driving the spline shaft (64) to rotate, the driving mechanism (65) comprising a second mounting frame (651) fixed on the mounting plate (5), a motor (652) fixedly mounted on the second mounting frame (651), a driving synchronous pulley (653) fixedly mounted on the motor shaft of the motor (652), the driving synchronous pulley (653) being connected to a driven synchronous pulley (655) via a synchronous belt (654), and the spline shaft (64) being mounted at the center of the driven synchronous pulley (655) via a keyway.

5. The protective gas device for vacuum heat treatment equipment of metal materials according to claim 1, characterized in that: The air blowing head (67) comprises a connecting head (671), an air inlet (672) is provided on the connecting head (671), the lower end of the spline shaft (64) is arranged in the air inlet (672), a plurality of air blowing branch pipes (673) are arranged at equal distances around the connecting head (671), and a plurality of air nozzles (674) are arranged on the air blowing branch pipes (673).

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