A heat treatment salt bath quench tank

Abstract

The utility model discloses a heat treatment salt bath quenching tank, including salt bath quenching tank and the cover plate of movable installation in the upper end of salt bath quenching tank, the cover plate upper end is connected with the opening and closing mechanism, and the opening and closing mechanism includes a group of guide slide rail, two groups of connecting rod, fixed frame, servo air cylinder, push frame, two groups of articulated link, a group of U type groove and a group of guide pulley. The utility model has the beneficial effect that through being located the cover plate upper end connection has the opening and closing mechanism, places the workpiece in the salt bath quenching tank after bearing frame, and the servo air cylinder telescopic end lengthens, is closed in the salt bath quenching tank through push frame drive cover plate automatic, thereby reduces the oil fume, prevents the workpiece long -time and external air contact and produces the blackening phenomenon, and the lifting mechanism can drive bearing frame reciprocating lifting, thereby makes the workpiece and the salt bath quenching medium full contact, improves the workpiece hardness after quenching.

Description

Technical Field

[0001] This utility model relates to the field of heat treatment technology, specifically to a heat treatment salt bath quenching tank. Background Technology

[0002] Heat treatment refers to a metal hot working process in which the chemical composition and structure of a metal material are changed on its surface or inside by heating, holding, and cooling in a solid state to obtain the desired properties. A salt bath quenching tank, also known as a brine quenching tank, is mainly used for quenching mechanical workpieces in various salt solutions or mixed salt solutions as the quenching medium.

[0003] Currently, during the salt bath quenching process, a large amount of oil fumes are generated when the workpiece comes into contact with the quenching medium. The oil fumes contain a variety of harmful gases such as chlorine and hydrogen chloride, which will increase the concentration of particulate matter in the air and pollute the working environment. Moreover, the workpiece is in contact with the outside air for a long time after heating, which can easily cause blackening. Due to the poor fluidity of the quenching medium, the temperature of the quenching medium is uneven, the workpiece is prone to deformation, and the hardness of the workpiece after quenching is affected. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a heat treatment salt bath quenching tank to solve the problem of reducing oil fumes in the salt bath quenching tank.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat treatment salt bath quenching tank includes a salt bath quenching tank and a cover plate movably installed on the upper end of the salt bath quenching tank, wherein an opening and closing mechanism is connected to the upper end of the cover plate.

[0007] The opening and closing mechanism includes a set of guide rails, two sets of connecting rods, a fixed frame, a servo cylinder, a pusher, two sets of hinged rods, a set of U-shaped grooves, and a set of guide pulleys. The set of guide rails is installed on both sides of the upper end of the salt bath quenching tank. The two sets of connecting rods are installed on the outside of the set of guide rails. The fixed frame is installed on the upper end of the two sets of connecting rods. The servo cylinder is installed at the rear end of the fixed frame. The pusher is installed on the telescopic end of the servo cylinder. One end of each of the two sets of hinged rods is hinged to the pusher, and the other end is hinged to the top of the cover plate. A set of U-shaped grooves is opened at the front end of the set of guide rails. A set of guide pulleys is installed on the outer side of the bottom of the rear set of hinged rods and is slidably installed on the set of guide rails.

[0008] Furthermore, a support frame is movably installed inside the salt bath quenching tank. A lifting mechanism is connected to both ends of the bottom of the support frame. The lifting mechanism includes a set of rectangular grooves, a set of electric push rods, a set of guide wheels, a set of steel wire connecting ropes, and a set of connecting seats. A set of rectangular grooves is opened at both ends inside the salt bath quenching tank. A set of electric push rods is installed inside the set of rectangular grooves. A set of guide wheels is movably installed on the telescopic ends of the set of electric push rods. A set of steel wire connecting ropes is respectively fitted on a set of guide wheels, and one end is fixed to the bottom of a set of rectangular grooves. A set of connecting seats is installed at both ends of the bottom of the support frame and is fixedly connected to the other end of the set of steel wire connecting ropes.

[0009] Furthermore, a set of fixed slide rails are installed on both sides of the salt bath quenching tank, and the rear ends of a set of connecting seats are slidably installed on the set of fixed slide rails respectively.

[0010] Furthermore, the outer surface of the support frame is uniformly provided with several water seepage holes.

[0011] Furthermore, a set of opposing strip grooves are opened on both sides of the fixed frame, and the two sides of the push frame are slidably installed on a set of opposing strip grooves.

[0012] This utility model provides a heat treatment salt bath quenching tank, which has the following beneficial effects: by connecting an opening and closing mechanism at the upper end of the cover plate, after the workpiece is placed in the support frame inside the salt bath quenching tank, the extension end of the servo cylinder extends, and the cover plate is automatically closed on the salt bath quenching tank by the push frame, thereby reducing oil fumes and preventing the workpiece from blackening due to prolonged contact with the outside air; the lifting mechanism can drive the support frame to move up and down repeatedly, so that the workpiece can fully contact the salt bath quenching medium and improve the hardness of the workpiece after quenching. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a heat treatment salt bath quenching tank according to the present invention.

[0014] Figure 2 This is a schematic diagram showing the connection between the guide rail and the fixed frame of this utility model.

[0015] Figure 3 This is a schematic diagram of the pusher frame and cover plate described in this utility model.

[0016] Figure 4 This is a top view of the fixed frame described in this utility model.

[0017] Figure 5 This is a top view of the pusher frame described in this utility model.

[0018] Figure 6 This is a schematic diagram of the cover plate being closed according to the present invention.

[0019] Figure 7 This is a side sectional view of the salt bath quenching tank described in this utility model.

[0020] In the diagram: 1. Salt bath quenching tank; 2. Cover plate; 3. Guide rail; 4. Connecting rod; 5. Fixed frame; 6. Servo cylinder; 7. Push frame; 8. Hinge rod; 9. U-shaped groove; 10. Guide pulley; 11. Bearing frame; 12. Rectangular groove; 13. Electric push rod; 14. Guide wheel; 15. Steel wire connecting rope; 16. Connecting seat; 17. Fixed rail; 18. Drainage hole; 19. Strip groove. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 7 As shown, this application embodiment provides a heat treatment salt bath quenching tank, including a salt bath quenching tank 1 and a cover plate 2 movably installed on the upper end of the salt bath quenching tank 1. The upper end of the cover plate 2 is connected to an opening and closing mechanism. The opening and closing mechanism includes a set of guide rails 3, two sets of connecting rods 4, a fixed frame 5, a servo cylinder 6, a push frame 7, two sets of hinge rods 8, a set of U-shaped grooves 9, and a set of guide pulleys 10. A set of guide rails 3 is installed on both sides of the upper end of the salt bath quenching tank 1. Two sets of connecting rods 4 are installed on the outside of a set of guide rails 3. The fixed frame 5 is installed on the upper end of two sets of connecting rods 4. The servo cylinder 6 is installed at the rear end of the fixed frame 5. The push frame 7 is installed on the telescopic end of the servo cylinder 6. One end of each of the two sets of hinge rods 8 is hinged to the push frame 7, and the other end is hinged to the top of the cover plate 2. A set of U-shaped grooves 9 is opened at the front end of a set of guide rails 3. A set of guide pulleys 10 is installed on the outer side of the bottom of a set of hinge rods 8 at the rear end, and is slidably installed on a set of guide rails 3.

[0023] In this embodiment, the user first places the heated workpiece in the salt bath quenching tank 1. The servo cylinder 6 extends its telescopic end, pushing the pusher frame 7 to move forward. The bottom outer side of a set of hinge rods 8 at the rear end is slidably mounted on a set of guide rails 3 via a set of guide pulleys 10. The pusher frame 7 drives the cover plate 2 to move horizontally forward first through the two sets of hinge rods 8. When the set of guide pulleys 10 moves to a set of U-shaped grooves 9, the two sets of hinge rods 8 deflect, causing the cover plate 2 to descend and automatically close on the salt bath quenching tank 1. Figure 6 As shown, this reduces oil fumes and prevents the workpiece from turning black due to prolonged contact with outside air.

[0024] In some embodiments, a support frame 11 is movably installed inside the salt bath quenching tank 1. Lifting mechanisms are connected to both ends of the bottom of the support frame 11. The lifting mechanisms include a set of rectangular grooves 12, a set of electric push rods 13, a set of guide wheels 14, a set of steel wire connecting ropes 15, and a set of connecting seats 16. The rectangular grooves 12 are located at both ends of the salt bath quenching tank 1. The electric push rods 13 are installed within the rectangular grooves 12. The guide wheels 14 are movably installed on the telescopic ends of the electric push rods 13. The steel wire connecting ropes 15 are respectively fitted onto the guide wheels 14, with one end fixed to the bottom of the rectangular grooves 12. The connecting seats 16 are installed at both ends of the bottom of the support frame 11 and are fixedly connected to the other ends of the steel wire connecting ropes 15. Figure 7 As shown, the heated workpiece is placed in the support frame 11. A set of electric push rods 13 reciprocate through their telescopic ends. Through a set of guide wheels 14 and a set of steel wire connecting ropes 15, the support frame 11 is driven to move up and down repeatedly, so that the workpiece is in full contact with the salt bath quenching medium, thereby improving the hardness of the workpiece after quenching. The liquid level in the salt bath quenching tank 1 is lower than a set of rectangular grooves 12.

[0025] In some embodiments, a set of fixed slide rails 17 are installed on both sides of the salt bath quenching tank 1, and the rear ends of a set of connecting seats 16 are slidably installed on a set of fixed slide rails 17 to facilitate the reciprocating lifting and lowering movement of the support frame 11.

[0026] In some embodiments, a plurality of permeation holes 18 are uniformly opened on the outer surface of the support frame 11 to facilitate the immersion of salt bath medium into the support frame 11.

[0027] In some embodiments, a set of opposing strip grooves 19 are provided on both sides of the fixed frame 5, and the push frame 7 is slidably mounted on the set of opposing strip grooves 19 on both sides, so as to facilitate the movement of the push frame 7 within the fixed frame 5.

[0028] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A heat treatment salt bath quench tank comprising a salt bath quench tank (1) and a cover (2) movably mounted on the upper end of the salt bath quench tank (1), characterized in that, The upper end of the cover plate (2) is connected to an opening and closing mechanism; The opening and closing mechanism includes a set of guide rails (3), two sets of connecting rods (4), a fixed frame (5), a servo cylinder (6), a pusher (7), two sets of hinge rods (8), a set of U-shaped grooves (9), and a set of guide pulleys (10). A set of guide rails (3) is installed on both sides of the upper end of the salt bath quenching tank (1). Two sets of connecting rods (4) are installed on the outside of a set of guide rails (3). The fixed frame (5) is installed on the upper end of the two sets of connecting rods (4). The servo cylinder (6) is installed at the rear end of the fixed frame (5). The pusher (7) is installed on the telescopic end of the servo cylinder (6). Two sets of hinge rods (8) are hinged at one end to the pusher (7) and at the other end to the top of the cover plate (2). A set of U-shaped grooves (9) is opened at the front end of a set of guide rails (3). A set of guide pulleys (10) is installed on the outer side of the bottom of a set of hinge rods (8) at the rear end and is slidably installed on a set of guide rails (3).

2. A heat treatment salt bath quench tank according to claim 1, wherein, A support frame (11) is movably installed inside the salt bath quenching tank (1). A lifting mechanism is connected to both ends of the bottom of the support frame (11). The lifting mechanism includes a set of rectangular grooves (12), a set of electric push rods (13), a set of guide wheels (14), a set of steel wire connecting ropes (15), and a set of connecting seats (16). A set of rectangular grooves (12) is opened at both ends inside the salt bath quenching tank (1). A set of electric push rods (13) is installed inside a set of rectangular grooves (12). A set of guide wheels (14) is movably installed on the telescopic end of a set of electric push rods (13). A set of steel wire connecting ropes (15) are respectively fitted on a set of guide wheels (14), and one end is fixed to the bottom of a set of rectangular grooves (12). A set of connecting seats (16) is installed at both ends of the bottom of the support frame (11) and is fixedly connected to the other end of a set of steel wire connecting ropes (15).

3. The heat treatment salt bath quenching tank according to claim 2, characterized in that, A set of fixed slide rails (17) are installed on both sides of the salt bath quenching tank (1), and a set of connecting seats (16) are slidably installed on the set of fixed slide rails (17) at their rear ends.

4. The heat treatment salt bath quenching tank according to claim 2, characterized in that, The outer surface of the support frame (11) has a number of water seepage holes (18) evenly distributed.

5. The heat treatment salt bath quenching tank according to claim 1, characterized in that, The fixed frame (5) has a set of opposite strip grooves (19) on both sides, and the push frame (7) is slidably mounted on the set of opposite strip grooves (19) on both sides.

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