Electric heating type aluminum liquid holding furnace for producing transmission housing

Abstract

This utility model discloses an electrically heated aluminum liquid holding furnace for the production of gearbox housings, including a furnace body, an electrical control box located on the front side of the furnace body, and a furnace cavity inside the furnace body. The top of the furnace body has symmetrically arranged liquid inlets and outlets. An inlet cover is provided on the inlet, and the inlet cover is connected to an opening and closing mechanism. A scoop, driven by a mechanism, extends into the furnace cavity through the outlet to collect liquid. Two heating rods are installed at the center of the top of the furnace body, with their lower parts extending into the furnace body. A scoop temperature detector is installed on one side of the outlet. During the aluminum liquid holding process, this utility model uses the scoop temperature detector to monitor the temperature of the aluminum liquid in the scoop in real time, ensuring that the aluminum liquid temperature reaches the required temperature for gearbox housing forming. If the temperature is insufficient, the heating rods promptly heat the aluminum liquid to maintain the temperature, effectively improving the holding furnace's heat preservation effect.

Description

Technical Field

[0001] This utility model relates to the field of heat preservation furnace technology, specifically to an electrically heated aluminum liquid heat preservation furnace for the production of gearbox housings. Background Technology

[0002] The transmission housing is a key component of a car and is mainly formed using aluminum alloy casting processes, such as die casting or gravity casting. During the production process, it takes time for the molten aluminum to go from the melting furnace to the final product. Therefore, an aluminum molten aluminum holding furnace is usually set up to keep the molten aluminum in the melting furnace at a constant temperature, ensuring that the quality of the molten aluminum poured each time is consistent and reducing the scrap rate.

[0003] The existing aluminum liquid holding furnace has an inlet and an outlet on its top surface, both of which are open. In this case, the aluminum liquid in the furnace cavity cannot reach the required temperature due to the influence of the external environment. It is impossible to effectively keep the aluminum liquid in the furnace cavity warm, and it is also impossible to detect the temperature of the aluminum liquid taken out in time, resulting in poor quality of the final product. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electrically heated aluminum liquid holding furnace for the production of transmission housings, which can effectively keep the aluminum liquid stored in the furnace cavity warm and promptly detect the temperature of the aluminum liquid taken out at the outlet, so as to ensure that the temperature of the aluminum liquid taken out can meet the production requirements of the transmission housing.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] An electrically heated aluminum liquid holding furnace for producing gearbox housings includes a furnace body, an electrical control box located at the front of the furnace body, and a furnace cavity for holding molten aluminum inside the furnace body. The top of the furnace body has symmetrically arranged inlet and outlet ports. An inlet cover is provided on the inlet port, and the inlet cover is connected to an opening and closing mechanism. A scoop, driven by a driving mechanism, extends into the furnace cavity through the outlet port to collect molten aluminum. The controlled ends of the opening and closing mechanism and the driving mechanism are respectively connected to the output end of the electrical control box. Two heating rods are mounted on the center of the top of the furnace body via a heating rod mounting bracket. The lower parts of the heating rods extend into the furnace body, and the controlled ends of the heating rods are connected to the output end of the electrical control box. A scoop temperature detector for detecting the temperature of the molten aluminum in the scoop is mounted on one side of the outlet port via a scoop temperature detector mounting bracket. The output end of the scoop temperature detector is connected to the input end of the electrical control box.

[0007] The aforementioned electrically heated aluminum liquid holding furnace for producing transmission housings has heating rod protective plates on both the left and right sides of the heating rod mounting bracket to prevent damage to the heating rod during the liquid addition or removal process.

[0008] In the aforementioned electrically heated aluminum liquid holding furnace for producing transmission housings, the heating rod protective plate is vertically arranged or tilted outwards at the top.

[0009] The aforementioned electrically heated aluminum liquid holding furnace for producing a gearbox housing has a wire hook ring installed on the upper inner side of the protective plate of one of the heating rods. These rings are evenly arranged in the front-to-back direction and are used to hook and organize the circuit connection wires of the heating rod.

[0010] The above-mentioned electrically heated aluminum liquid holding furnace for producing gearbox housings includes an opening and closing mechanism comprising a cylinder and a lifting arm. A support frame is provided on the rear side wall of the furnace body, and a hinge seat is provided on the top of the support frame to be hinged to the bottom of the cylinder. The top of the cylinder piston rod inside the cylinder is hinged to one end of the lifting arm, and the other end of the lifting arm is hinged to the cover plate hinge seat on the top of the liquid inlet cover. An intermediate hinge seat is also provided on the top of the furnace body located behind the liquid inlet cover, which is hinged to the middle of the lifting arm.

[0011] The aforementioned electrically heated aluminum liquid holding furnace for producing gearbox housings is further equipped with lifting lugs around its perimeter.

[0012] The aforementioned electrically heated aluminum liquid holding furnace for producing gearbox housings has a waste liquid discharge and slag removal port located on the lower front side of the furnace body.

[0013] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0014] This utility model provides an electrically heated aluminum liquid holding furnace for the production of gearbox housings. During the holding process of aluminum liquid, the temperature of the aluminum liquid in the scoop is monitored in real time by a temperature detector to ensure that the temperature of the aluminum liquid reaches the required temperature for the forming of the gearbox housing. When the temperature is not high enough, the aluminum liquid is heated in time by a heating rod to maintain the temperature of the aluminum liquid. A protective plate for the heating rod is set to protect the heating rod and prevent damage to the heating rod caused by splashing of aluminum liquid when adding or removing liquid. The opening and closing of the liquid inlet cover is controlled by an opening and closing mechanism, so that the liquid inlet is in a sealed state when no liquid is added. Combined with the heating rod heating, the heat preservation effect of the holding furnace is effectively improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the specific structure of the present utility model; Figure 2 This is a schematic diagram of the specific structure of the furnace body described in this utility model; Figure 3 This is a schematic diagram of the specific structure of the temperature detector of the scoop during the liquid extraction process of this utility model. Figure 4 This is a schematic diagram of the specific structure of the liquid inlet cover opening and closing mechanism of this utility model.

[0016] The components are: 1. Furnace body, 2. Liquid inlet, 3. Liquid inlet cover plate, 4. Liquid outlet, 5. Heating rod, 6. Heating rod mounting bracket, 7. Electrical control box, 8. Scoop temperature detector, 9. Scoop temperature detector mounting bracket, 10. Lifting lug, 11. Waste liquid discharge slag removal port, 12. Heating rod protective plate, 13. Hook ring, 14. Support frame, 15. Cylinder hinge seat, 16. Cylinder, 17. Cylinder piston rod, 18. Lifting arm, 19. Intermediate hinge seat, 20. Cover plate hinge seat, 21. Reinforcing rib plate, 22. Scoop. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] An electrically heated aluminum liquid holding furnace for the production of transmission housings, such as Figures 1 to 4 As shown, the furnace includes a furnace body 1, an electrical control box 7 is installed on the front side of the furnace body 1, a furnace cavity for holding molten aluminum is installed inside the furnace body 1, and a liquid inlet 2 and a liquid outlet 4 are symmetrically arranged on the top of the furnace body 1. A liquid inlet cover 3 is installed on the liquid inlet 2 and the liquid inlet cover 3 is connected to the opening and closing mechanism. The scoop 22 extends into the furnace cavity from the liquid outlet 4 to take liquid under the action of the driving mechanism. The controlled end of the opening and closing mechanism and the driving mechanism are respectively connected to the output end of the electrical control box.

[0019] The drive mechanism can be a conventional structure that can drive the scoop into the liquid collection port to collect the liquid and transport it to the die-casting machine for molding, such as a robotic arm or other existing devices that are available on the market. In this embodiment, the drive mechanism has not been improved, so the specific structure of the drive mechanism has not been described.

[0020] Two heating rods 5 are mounted on the top center of the furnace body 1 via a heating rod mounting bracket 6. The lower part of the heating rods 5 extends into the furnace body, and the controlled end of the heating rods 5 is connected to the output end of the electrical control box 7.

[0021] Heating rod protective plates 12 are provided on the left and right sides of the heating rod mounting bracket 6. The heating rod protective plates 12 can be welded to the heating rod mounting bracket 6 or installed on the heating rod mounting bracket in a detachable manner. The installation can be selected according to the actual situation.

[0022] In this embodiment, the heating rod protective plate 12 is set vertically or tilted outward at the top, which can prevent damage to the heating rod during the liquid addition or removal process.

[0023] One of the heating rod protective plates 12 has hook rings 13 evenly arranged in the front-to-back direction installed on the upper inner side, which are used to hook and organize the circuit connection wires of the heating rod 5.

[0024] A spoon temperature detector 8 is installed on one side of the liquid intake port 4 via a spoon temperature detector mounting bracket 9 to detect the temperature of the molten aluminum in the spoon 22. The output of the spoon temperature detector 8 is connected to the input of the electrical control box 7. After the spoon 22 finishes taking liquid, the spoon stops at the liquid intake port and the temperature of the molten aluminum in the spoon is sensed and detected by the spoon temperature detector. If the temperature of the molten aluminum is suitable, the drive mechanism is controlled to move the spoon towards the die-casting machine. If the temperature of the molten aluminum is not suitable, the molten aluminum delivery is stopped, and the molten aluminum in the furnace cavity is heated by the heating rod to reach the required temperature.

[0025] The opening and closing mechanism includes a cylinder 16 and a lifting arm 18. A support frame 14 is provided on the rear side wall of the furnace body 1. A cylinder hinge seat 15 is provided on the top of the support frame 14 and is hinged to the bottom of the cylinder 16. The top of the cylinder piston rod 17 inside the cylinder 16 is hinged to one end of the lifting arm 18. The other end of the lifting arm 18 is hinged to the cover plate hinge seat 20 on the top of the liquid inlet cover plate 3. An intermediate hinge seat 19 is also provided on the top of the furnace body 1 located behind the liquid inlet cover plate 3 and is hinged to the middle of the lifting arm 18.

[0026] Specifically, the lifting arm 18 is bent, with the front end of the lifting arm 18 being the first hinge part that is hinged to the cover plate hinge seat 20, the rear end of the lifting arm 18 being the second hinge part that is hinged to the top of the cylinder piston rod 17, and the lower middle part of the lifting arm 18 being the third hinge part that is hinged to the intermediate hinge seat 19.

[0027] To ensure the stability of the opening and closing mechanism, a reinforcing rib plate 21 is also provided on the support frame 14.

[0028] The furnace body 1 is also equipped with lifting lugs 10 around its perimeter, which facilitates the adjustment of the furnace body's position and its movement.

[0029] A waste liquid discharge and slag removal port 11 is provided on the lower front side of the furnace body 1 for discharging waste liquid and waste slag inside the furnace cavity.

[0030] In this embodiment, the interior of the furnace cavity has a left-high to right-low trend along the direction from the liquid inlet to the liquid outlet. The position of the liquid inlet being higher than that of the liquid outlet ensures that when liquid is added through the liquid inlet, the molten aluminum quickly enters the furnace cavity below the liquid outlet.

[0031] This utility model provides an electrically heated aluminum liquid holding furnace for the production of gearbox housings. During the holding process of aluminum liquid, the temperature of the aluminum liquid in the scoop is monitored in real time by a temperature detector to ensure that the temperature of the aluminum liquid reaches the required temperature for the forming of the gearbox housing. When the temperature is not high enough, the aluminum liquid is heated in time by a heating rod to maintain the temperature of the aluminum liquid. A protective plate for the heating rod is set to protect the heating rod and prevent damage to the heating rod caused by splashing of aluminum liquid when adding or removing liquid. The opening and closing of the liquid inlet cover is controlled by an opening and closing mechanism, so that the liquid inlet is in a sealed state when no liquid is added. Combined with the heating rod heating, the heat preservation effect of the holding furnace is effectively improved.

Claims

1. An electrically heated holding furnace for molten aluminum for production of a transmission case, characterized by: The furnace includes a furnace body (1), an electrical control box (7) is provided on the front side of the furnace body (1), and a furnace cavity for holding molten aluminum is provided inside the furnace body (1); the top of the furnace body (1) is provided with a liquid inlet (2) and a liquid outlet (4) arranged symmetrically on the left and right sides, a liquid inlet cover plate (3) is provided on the liquid inlet (2), the liquid inlet cover plate (3) is connected to the opening and closing mechanism, and the scoop (22) extends into the furnace cavity from the liquid outlet (4) to take liquid under the action of the driving mechanism. The controlled end of the opening and closing mechanism and the driving mechanism are respectively connected to the output of the electrical control box. The furnace body (1) has two heating rods (5) installed at the top center via a heating rod mounting bracket (6). The lower part of the heating rod (5) extends into the furnace body. The controlled end of the heating rod (5) is connected to the output end of the electrical control box (7). The liquid outlet (4) is equipped with a scoop temperature detector (8) for detecting the temperature of the aluminum liquid in the scoop (22) via a scoop temperature detector mounting bracket (9). The output end of the scoop temperature detector (8) is connected to the input end of the electrical control box (7).

2. The electric heating type molten aluminum holding furnace for producing a transmission housing according to claim 1, characterized in that: The heating rod mounting bracket (6) is provided with heating rod protective plates (12) on the left and right sides to prevent damage to the heating rod during the liquid addition or removal process.

3. The electric heating type holding furnace for molten aluminum for producing a transmission case according to claim 2, characterized in that: The heating rod protective plate (12) is set vertically or tilted outward at the top.

4. The electric heating type holding furnace for molten aluminum for producing a transmission case according to claim 2 or 3, characterized in that: One of the heating rod protective plates (12) has hook rings (13) evenly arranged in the front-back direction on the upper inner side for hooking and organizing the circuit connection wires of the heating rod (5).

5. The electric heating type molten aluminum holding furnace for producing a transmission housing according to claim 1, characterized in that: The opening and closing mechanism includes a cylinder (16) and a lifting arm (18). A support frame (14) is provided on the rear side wall of the furnace body (1). A cylinder hinge seat (15) is provided on the top of the support frame (14) and is hinged to the bottom of the cylinder (16). The top of the cylinder piston rod (17) inside the cylinder (16) is hinged to one end of the lifting arm (18). The other end of the lifting arm (18) is hinged to the cover plate hinge seat (20) on the top of the liquid inlet cover plate (3). An intermediate hinge seat (19) is also provided on the top of the furnace body (1) located behind the liquid inlet cover plate (3) and is hinged to the middle of the lifting arm (18).

6. The electric heating type molten aluminum holding furnace for producing a transmission housing according to claim 1, characterized in that: The furnace body (1) is also provided with lifting lugs (10) around its perimeter.

7. The electrically heated aluminum liquid holding furnace for producing a transmission housing according to claim 1, characterized in that: The furnace body (1) is provided with a waste liquid discharge slag removal port (11) at the lower front side.

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