An annealing device for motor stator silicon steel sheet production

Abstract

The utility model discloses an annealing device for motor stator silicon steel sheet production, including annealing furnace body, the back surface fixed mounting of annealing furnace body has the nitrogen cylinder, the gas -out end fixed communication of nitrogen cylinder has the intake pipe, the one end of intake pipe is away from nitrogen cylinder and extends to the inside of annealing furnace body and is passed through annealing furnace body. The device can extract the gas in the annealing furnace body through the setting of high temperature -resistant centrifugal fan, and the cooperation with the air extraction pipe and the exhaust pipe, and then can send the gas back to the annealing furnace body, realize the circulation flow of the gas in the annealing furnace body, ensure that the silicon steel sheet is heated evenly, utilize the setting of nitrogen cylinder, and the cooperation of intake pipe, pressure valve and rotor flowmeter, so that nitrogen can enter the annealing furnace body, and the intake pressure is adjusted and the intake flow is monitored, the air in the annealing furnace body is replaced by nitrogen, the annealing environment without oxygen is formed, and the oxidation condition of silicon steel sheet is prevented.

Description

Technical Field

[0001] This utility model relates to the field of stator silicon steel sheets, and in particular to an annealing device for the production of motor stator silicon steel sheets. Background Technology

[0002] Stator silicon steel sheets are silicon steel sheets used to manufacture motor stators. They are stamped into different specifications to adapt to motor stators of different power. The main function of stator silicon steel sheets is as the core material of motor stator core. Through their high permeability, low iron loss and insulation characteristics, they achieve efficient electromagnetic energy conversion while reducing eddy current loss and hysteresis loss.

[0003] However, currently, during the annealing of silicon steel sheets, it is difficult to ensure smooth circulation of gas extraction from the furnace, which leads to uneven heating of the silicon steel sheets and affects the annealing quality. Furthermore, it is difficult to maintain a stable annealing environment during use, which can cause oxidation of the silicon steel sheets. To address these issues, we propose an annealing device for the production of silicon steel sheets for motor stators. Utility Model Content

[0004] The purpose of this invention is to provide an annealing apparatus for the production of silicon steel sheets for motor stators, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An annealing apparatus for producing silicon steel sheets for motor stators includes an annealing furnace body. A nitrogen cylinder is fixedly installed on the back of the annealing furnace body. An inlet pipe is fixedly connected to the outlet end of the nitrogen cylinder. The end of the inlet pipe away from the nitrogen cylinder passes through the annealing furnace body and extends into the interior of the annealing furnace body. A pressure valve is fixedly connected to the outer surface of the inlet pipe. A rotor flow meter is fixedly connected to the outer surface of the inlet pipe. A high-temperature centrifugal fan is fixedly installed on the left side of the annealing furnace body. An exhaust pipe is fixedly connected to the exhaust end of the high-temperature centrifugal fan. The end of the exhaust pipe away from the high-temperature centrifugal fan passes through the annealing furnace body and extends into the interior of the annealing furnace body. An exhaust pipe is fixedly connected to the outlet end of the high-temperature centrifugal fan. The end of the exhaust pipe away from the high-temperature centrifugal fan passes through the annealing furnace body and extends into the interior of the annealing furnace body.

[0007] In a further embodiment, a support base is fixedly connected to the bottom surface of the annealing furnace body, and two sets of mounting ports are provided on the upper surface of the support base.

[0008] In a further embodiment, an exhaust pipe is fixedly connected to the left side of the annealing furnace body, and an exhaust valve is fixedly connected to the outer surface of the exhaust pipe.

[0009] In a further embodiment, two sliding grooves are formed in the inner wall of the annealing furnace body, and a grille plate is slidably connected inside the two sliding grooves together.

[0010] In a further embodiment, a thermocouple is fixedly installed on the right side surface of the annealing furnace body, and the detection end of the thermocouple penetrates through the annealing furnace body and extends into the annealing furnace body.

[0011] In a further embodiment, a sealing door is hinged to the front surface of the annealing furnace body through a hinge, and a PLC controller is fixedly installed on the front surface of the sealing door.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By setting the high-temperature resistant centrifugal fan and cooperating with the air extraction pipe and the exhaust pipe, the gas inside the annealing furnace body can be extracted, and at the same time, the gas is sent back into the annealing furnace body, realizing the circulating flow of the gas inside the annealing furnace body, ensuring uniform heating of the silicon steel sheet, improving the annealing quality of the silicon steel sheet. By setting the nitrogen cylinder and cooperating with the air inlet pipe, the pressure valve and the rotameter, nitrogen can enter the annealing furnace body, and the inlet air pressure can be adjusted and the inlet air flow can be monitored, so that the air inside the annealing furnace body is replaced by nitrogen, forming an oxygen-free annealing environment, preventing the silicon steel sheet from being oxidized, and improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of an annealing device for producing motor stator silicon steel sheets.

[0015] Figure 2 It is a rear view structural schematic diagram of an annealing device for producing motor stator silicon steel sheets.

[0016] Figure 3 In the annealing device for producing motor stator silicon steel sheets Figure 2 It is an enlarged schematic diagram of the structure at A.

[0017] Figure 4 It is a front sectional view of an annealing device for producing motor stator silicon steel sheets.

[0018] In the figure: 1. Annealing furnace body; 2. Nitrogen cylinder; 3. Air inlet pipe; 4. Pressure valve; 5. Rotameter; 6. High-temperature resistant centrifugal fan; 7. Air extraction pipe; 8. Exhaust pipe; 9. Sealing door; 10. Thermocouple; 11. PLC controller; 12. Bearing seat; 13. Installation port; 14. Air outlet pipe; 15. Exhaust valve; 16. Sliding groove; 17. Grille plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "plural" is two or more.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4In this utility model, an annealing device for producing silicon steel sheets for motor stators includes an annealing furnace body 1. A nitrogen cylinder 2 is fixedly installed on the back of the annealing furnace body 1. An inlet pipe 3 is fixedly connected to the outlet end of the nitrogen cylinder 2. The end of the inlet pipe 3 away from the nitrogen cylinder 2 passes through the annealing furnace body 1 and extends into the interior of the annealing furnace body 1. A pressure valve 4 is fixedly connected to the outer surface of the inlet pipe 3. A rotor flow meter 5 is fixedly connected to the outer surface of the inlet pipe 3. A high-temperature centrifugal fan 6 is fixedly installed on the left side of the annealing furnace body 1. An exhaust pipe 7 is fixedly connected to the exhaust end of the high-temperature centrifugal fan 6. The end of the exhaust pipe 7 away from the high-temperature centrifugal fan 6 passes through the annealing furnace body 1 and extends into the interior of the annealing furnace body 1. An exhaust pipe is fixedly connected to the outlet end of the high-temperature centrifugal fan 6. 8. The end of the exhaust pipe 8 away from the high-temperature centrifugal fan 6 passes through the annealing furnace body 1 and extends into the interior of the annealing furnace body 1. Through the setting of the high-temperature centrifugal fan 6, and in cooperation with the extraction pipe 7 and the exhaust pipe 8, the gas inside the annealing furnace body 1 can be extracted, and the gas can be sent back into the annealing furnace body 1 to realize the circulation of gas inside the annealing furnace body 1. This ensures that the silicon steel sheets are heated evenly and improves the annealing quality of the silicon steel sheets. With the setting of the nitrogen cylinder 2, and in cooperation with the air inlet pipe 3, pressure valve 4 and rotor flow meter 5, nitrogen can be allowed to enter the annealing furnace body 1. The air inlet pressure is adjusted and the air inlet flow is monitored so that the air inside the annealing furnace body 1 is replaced by nitrogen, forming an oxygen-free annealing environment, preventing the silicon steel sheets from oxidizing and improving the product qualification rate.

[0023] The bottom surface of the annealing furnace body 1 is fixedly connected to a support base 12. The upper surface of the support base 12 is provided with two sets of mounting ports 13. The left side of the annealing furnace body 1 is fixedly connected to an exhaust pipe 14. The outer surface of the exhaust pipe 14 is fixedly connected to an exhaust valve 15. The inner wall of the annealing furnace body 1 is provided with two sliding grooves 16. The interior of the two sliding grooves 16 is slidably connected to a grid plate 17. The support base 12 and the two sets of mounting ports 13 can provide support and fixation. The exhaust pipe 14 and the exhaust valve 15 can discharge mixed gas and control the gas flow and switch, and adjust the gas pressure and discharge speed, or close the exhaust channel when necessary. The two sliding grooves 16 and the grid plate 17 can provide sliding track adjustment position and support the workpiece, while allowing gas flow to ensure heating uniformity.

[0024] A thermocouple 10 is fixedly installed on the right side of the annealing furnace body 1. The detection end of the thermocouple 10 passes through the annealing furnace body 1 and extends into the interior of the annealing furnace body 1. A sealing door 9 is hinged to the front of the annealing furnace body 1. A PLC controller 11 is fixedly installed on the front of the sealing door 9. The temperature can be detected in real time through the thermocouple 10, and the temperature signal is converted into an electrical signal for transmission to realize temperature monitoring and closed-loop control. The sealing door 9 can be used to open or close the furnace cavity. The PLC controller 11 can automatically control the device.

[0025] The working principle of this utility model is as follows:

[0026] First, the device is installed and fixed through two sets of mounting ports 13 and connected to the power supply. Then, the sealing door 9 is opened, the silicon steel sheet to be annealed is placed on the grating plate 17, and the sealing door 9 is closed to ensure an internal sealed environment. Then, the nitrogen cylinder 2 is opened, allowing the nitrogen in the nitrogen cylinder 2 to enter the annealing furnace body 1 through the inlet pipe 3. The pressure valve 4 on the inlet pipe 3 adjusts the inlet pressure, and the rotor flow meter 5 monitors the inlet flow rate, so that the air inside the annealing furnace body 1 is replaced by nitrogen to form an oxygen-free annealing environment and prevent oxidation of the silicon steel sheet. Then, the high-temperature centrifugal fan 6 is started to extract the gas inside the annealing furnace body 1 through the exhaust pipe 7, and then the gas is sent back into the annealing furnace body 1 through the exhaust pipe 8 to achieve the circulation of gas inside the annealing furnace body 1 and ensure that the silicon steel sheet is heated evenly.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An annealing apparatus for producing silicon steel sheets for motor stators, characterized in that: The furnace includes an annealing furnace body (1), on the back of which a nitrogen cylinder (2) is fixedly installed. An inlet pipe (3) is fixedly connected to the outlet of the nitrogen cylinder (2). The end of the inlet pipe (3) away from the nitrogen cylinder (2) passes through the annealing furnace body (1) and extends into its interior. A pressure valve (4) is fixedly connected to the outer surface of the inlet pipe (3), and a rotor flow meter (5) is fixedly connected to the outer surface of the inlet pipe (3). The left side of the annealing furnace body (1)... A high-temperature centrifugal fan (6) is fixedly installed. The exhaust end of the high-temperature centrifugal fan (6) is fixedly connected to an exhaust pipe (7). The end of the exhaust pipe (7) away from the high-temperature centrifugal fan (6) passes through the annealing furnace body (1) and extends into the interior of the annealing furnace body (1). The exhaust end of the high-temperature centrifugal fan (6) is fixedly connected to an exhaust pipe (8). The end of the exhaust pipe (8) away from the high-temperature centrifugal fan (6) passes through the annealing furnace body (1) and extends into the interior of the annealing furnace body (1).

2. An annealing apparatus for producing silicon steel sheets for motor stators according to claim 1, characterized in that: The bottom surface of the annealing furnace body (1) is fixedly connected to a support base (12), and the upper surface of the support base (12) is provided with two sets of mounting ports (13).

3. An annealing apparatus for producing silicon steel sheets for motor stators according to claim 1, characterized in that: An exhaust pipe (14) is fixedly connected to the left side of the annealing furnace body (1), and an exhaust valve (15) is fixedly connected to the outer surface of the exhaust pipe (14).

4. An annealing apparatus for producing silicon steel sheets for motor stators according to claim 1, characterized in that: The inner wall of the annealing furnace body (1) has two sliding grooves (16), and the two sliding grooves (16) are slidably connected to a grid plate (17).

5. An annealing apparatus for producing silicon steel sheets for motor stators according to claim 1, characterized in that: A thermocouple (10) is fixedly installed on the right side of the annealing furnace body (1), and the detection end of the thermocouple (10) penetrates through the annealing furnace body (1) and extends into the interior of the annealing furnace body (1).

6. An annealing apparatus for producing silicon steel sheets for motor stators according to claim 1, characterized in that: The front of the annealing furnace body (1) is hinged with a sealing door (9), and a PLC controller (11) is fixedly installed on the front of the sealing door (9).

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