High-frequency quenching device for high-strength bolt production

Abstract

The utility model discloses a high-frequency quenching device for high-strength bolt production, which comprises a frame and a cooling tank positioned at the front end of the frame, a high-frequency quenching mechanism is arranged on the frame, and a reciprocating lifting mechanism is arranged in the cooling tank. The high-frequency quenching mechanism comprises a driving motor, a group of rotating shafts, two groups of chain gears, a group of transmission chains, a plurality of groups of bearing plates, a mounting plate, a high-frequency quenching machine and an electromagnetic heating coil. The continuous quenching device has the beneficial effects that a group of transmission chains drive a plurality of groups of bearing plates to rotate and are matched with a high-frequency quenching machine to drive an electromagnetic heating coil to carry out continuous quenching treatment on the head of the high-strength bolt, so that the quenching efficiency is improved; the quenched high-strength bolt falls into the bearing screen frame, the reciprocating lifting mechanism drives the bearing screen frame to do reciprocating lifting motion in the cooling tank, the head of the high-strength bolt is rapidly cooled, cooling of the head of the high-strength bolt is more uniform, after cooling is completed, the bearing screen frame is lifted to the top, and the high-strength bolt is conveniently taken out.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -strength bolt production technical field, concretely is a high -frequency quenching device for high -strength bolt production. BACKGROUND

[0002] The bolt made of high -strength steel or needing to exert greater pre -tightening force can be called high -strength bolt, and the high -strength bolt is mostly used in the connection of bridge, rail, high -pressure and super -high -pressure equipment. The fracture of the bolt is mostly brittle fracture. In order to ensure the sealing of the container, the high -strength bolt applied to super -high -pressure equipment needs to exert greater pre -stress. The high -strength bolt is the load that can be borne than the ordinary bolt of same specification.

[0003] High -strength bolt production process needs to be quenched, is heated to a certain appropriate temperature and keeps a period of time, immediately immerses into quenching medium and cools quickly. The prior art application No. CN202123088823.9 discloses a high -frequency quenching device for bolt processing, adopts high -frequency quenching mechanism and can carry out high -frequency quenching treatment to the head of large -sized bolt, cooperates cooling spray mechanism and can carry out quick cooling and temperature -reducing treatment to the head of high -strength bolt after heating, and is convenient to use. However, the device cannot realize continuous high -frequency quenching treatment to the head of large -sized bolt, and the quenching efficiency is low, and the cooling is carried out by cooling spray, so the water consumption is large, and the head of bolt is not cooled uniformly.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor and does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] In view of the above defects, the utility model provides a high -frequency quenching device for high -strength bolt production to solve the high -frequency quenching problem of the head of high -strength bolt.

[0006] To achieve the above -mentioned purpose, the utility model adopts the following technical scheme:

[0007] A high -frequency quenching device for high -strength bolt production, including the frame and the cooling tank at the front end of the frame, be equipped with high -frequency quenching mechanism on the frame, be equipped with reciprocating lifting mechanism in the cooling tank;

[0008] The high-frequency quenching mechanism includes a drive motor, a set of rotating shafts, two sets of chain gears, a set of transmission chains, several sets of bearing plates, a mounting plate, a high-frequency quenching machine, and an electromagnetic heating coil. The drive motor is horizontally mounted on the left side of the rear end of the frame. A set of rotating shafts is movably inserted into both ends of the frame, and the rear rotating shaft is connected to the rotating end of the drive motor. Two sets of chain gears are mounted on both sides of a set of rotating shafts. A set of transmission chains is respectively fitted onto the opposite set of chain gears. Several sets of bearing plates are evenly mounted on a set of transmission chains. The mounting plate is mounted on the left side of the front end of the frame. The high-frequency quenching machine is mounted on the mounting plate, and the electromagnetic heating coil is mounted on the front end of the high-frequency quenching machine.

[0009] Furthermore, the reciprocating lifting mechanism includes a set of side plates, a set of synchronous cylinders, a set of rotating gears, a set of lifting chains, a set of connecting blocks, and a load-bearing mesh frame. A set of side plates is installed on both sides of the cooling tank, a set of synchronous cylinders is installed on a set of side plates with its telescopic ends facing vertically upwards, a set of rotating gears is movably installed on the telescopic ends of a set of synchronous cylinders, a set of lifting chains is fitted onto a set of rotating gears, a set of connecting blocks is installed at one end of a set of lifting chains, and the load-bearing mesh frame is located inside the cooling tank and its two ends are fixedly connected to a set of connecting blocks.

[0010] Furthermore, the other end of a set of lifting chains is mounted on the corresponding side plate via fixing blocks.

[0011] Furthermore, a set of guide gears is movably installed on both sides of the upper end of the cooling tank, and a set of lifting chains are respectively fitted onto the set of guide gears.

[0012] Furthermore, a set of fixed slide rails are installed on both sides of the cooling tank, and a set of connecting blocks are slidably mounted on the set of fixed slide rails at their rear ends.

[0013] Furthermore, several sets of support plates have placement grooves on their upper ends.

[0014] This utility model provides a high-frequency quenching device for the production of high-strength bolts, which has the following beneficial effects: by setting a high-frequency quenching mechanism on the frame, high-strength bolts that need to be quenched by high frequency are placed on several sets of bearing plates in sequence, and a set of transmission chains drives several sets of bearing plates to rotate. In conjunction with the high-frequency quenching machine driving the electromagnetic heating coil to continuously quench the head of the high-strength bolts, the quenching efficiency is improved.

[0015] After being quenched, the high-strength bolts fall into the supporting mesh frame. The reciprocating lifting mechanism drives the supporting mesh frame to move back and forth in the cooling tank, which allows the head of the high-strength bolts to be cooled quickly and more evenly. After cooling is completed, the supporting mesh frame is lifted to the top, making it easy to remove the high-strength bolts. Attached Figure Description

[0016] Figure 1This is a schematic diagram of a high-frequency quenching device for producing high-strength bolts according to the present invention.

[0017] Figure 2 This is a top view of the frame described in this utility model.

[0018] Figure 3 This is a schematic diagram of the carrier plate of this utility model.

[0019] Figure 4 This is a top view of the mounting plate described in this utility model.

[0020] Figure 5 This is a schematic diagram of the reciprocating lifting mechanism of this utility model.

[0021] In the diagram: 1. Frame; 2. Cooling tank; 3. Drive motor; 4. Rotating shaft; 5. Chain and gear; 6. Transmission chain; 7. Bearing plate; 8. Mounting plate; 9. High-frequency quenching machine; 10. Electromagnetic heating coil; 11. Side plate; 12. Synchronous cylinder; 13. Rotating gear; 14. Lifting chain; 15. Connecting block; 16. Bearing mesh frame; 17. Fixing block; 18. Guide gear; 19. Fixed slide rail; 20. Placement groove. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figures 1-5The diagram shows a high-frequency quenching device for producing high-strength bolts, comprising a frame 1 and a cooling tank 2 located at the front end of the frame 1. A high-frequency quenching mechanism is mounted on the frame 1, and a reciprocating lifting mechanism is installed within the cooling tank 2. The high-frequency quenching mechanism includes a drive motor 3, a set of rotating shafts 4, two sets of chain gears 5, a set of transmission chains 6, several sets of bearing plates 7, mounting plates 8, a high-frequency quenching machine 9, and an electromagnetic heating coil 10. The drive motor 3 is horizontally mounted on the left rear end of the frame 1. A set of rotating shafts 4 is movably inserted into both ends of the frame 1, with the rear rotating shaft 4 connected to the rotating end of the drive motor 3. Two sets of chain gears 5 are mounted on both sides of a set of rotating shafts 4. A set of transmission chains 6 are respectively fitted onto the opposite set of chain gears 5. Several sets of bearing plates 7 are evenly mounted on a set of transmission chains 6. The mounting plate 8 is mounted on the left front end of the frame 1. The high-frequency quenching machine 9 is mounted on the mounting plate 8, and the electromagnetic heating coil 10 is mounted at the front end of the high-frequency quenching machine 9. The reciprocating lifting mechanism includes a set of side plates 11 and a set of... The cooling tank 2 includes a synchronous cylinder 12, a set of rotating gears 13, a set of lifting chains 14, a set of connecting blocks 15, and a support frame 16. A set of side plates 11 are installed on both sides of the cooling tank 2. The synchronous cylinder 12 is installed on the side plates 11 with its telescopic ends facing upwards. The rotating gears 13 are movably installed on the telescopic ends of the synchronous cylinders 12. The lifting chains 14 are fitted onto the rotating gears 13. A set of connecting blocks 15 are installed at one end of the lifting chains 14. The support frame 16 is located inside the cooling tank 2, and both ends are fixedly connected to the connecting blocks 15. The other ends of the lifting chains 14 are respectively installed on the corresponding side plates 11 via fixing blocks 17. A set of guide gears 18 are movably installed on both sides of the upper end of the cooling tank 2, and the lifting chains 14 are respectively fitted onto the guide gears 18. A set of fixed slide rails 19 are installed on both sides inside the cooling tank 2, and the rear ends of the connecting blocks 15 are slidably installed on the fixed slide rails 19. Several sets of support plates 7 have placement grooves 20 on their upper ends.

[0023] The working principle of this implementation plan: The electrical equipment used in this device is controlled by an external controller. A water supply pipe is inserted on the upper left side of the cooling tank 2, and a drainage pipe is inserted on the lower right side. When using it, the user first places the high-strength bolts that need to be high-frequency quenched neatly on several sets of bearing plates 7.

[0024] During high-frequency quenching: the drive motor 3 is horizontally mounted on the left rear end of the frame 1. A set of rotating shafts 4 are movably inserted into both ends of the frame 1 via fastening bearings, and the rear rotating shafts 4 are connected to the rotating end of the drive motor 3. Two sets of chain gears 5 are mounted on both sides of one set of rotating shafts 4. A set of transmission chains 6 are respectively fitted onto the opposite set of chain gears 5. Several sets of bearing plates 7 are evenly mounted on one set of transmission chains 6. The mounting plate 8 is mounted on the left front end of the frame 1. The high-frequency quenching machine 9 is mounted on the mounting plate 8. The electromagnetic heating coil 10 is mounted on the front end of the high-frequency quenching machine 9. The upper ends of the several sets of bearing plates 7 are respectively provided with placement grooves 20, such as... Figure 2 — Figure 4 As shown, the drive motor 3 drives a set of rotating shafts 4 to drive a set of transmission chains 6 to rotate several sets of bearing plates 7. When the heads of high-strength bolts on several sets of bearing plates 7 pass through the electromagnetic heating coil 10, the high-frequency quenching machine 9 quickly heats and quenches the heads of high-strength bolts through the electromagnetic heating coil 10, thereby changing their surface properties. The high-strength bolts achieve continuous quenching treatment, which improves the quenching efficiency.

[0025] During cooling: A set of side plates 11 are installed on both sides of the cooling tank 2; a set of synchronous cylinders 12 are installed on the set of side plates 11 with their telescopic ends facing vertically upwards; a set of rotating gears 13 are movably installed on the telescopic ends of the set of synchronous cylinders 12; a set of lifting chains 14 are fitted onto the set of rotating gears 13; a set of connecting blocks 15 are installed at one end of the set of lifting chains 14; the supporting mesh frame 16 is located inside the cooling tank 2, and both ends are fixedly connected to the set of connecting blocks 15; the other end of the set of lifting chains 14 is respectively installed on the corresponding side plates 11 through fixing blocks 17; a set of guide gears 18 are movably installed on both sides of the upper end of the cooling tank 2, and the set of lifting chains 14 are respectively fitted onto the set of guide gears 18; a set of fixed slide rails 19 are installed on both sides inside the cooling tank 2; the rear end of the set of connecting blocks 15 is slidably installed on the set of fixed slide rails 19, such as... Figure 5 As shown, the quenched high-strength bolts fall into the supporting mesh frame 16. A set of synchronous cylinders 12 reciprocate in a synchronized manner, which drives a set of lifting chains 14 and the supporting mesh frame 16 to reciprocate in the cooling tank 2 through a set of rotating gears 13. This allows the head of the high-strength bolts to be cooled quickly and more evenly. The guide gear 18 guides the lifting chain 14. After cooling is completed, the telescopic ends of the set of synchronous cylinders 12 extend, driving the supporting mesh frame 16 to the top, making it easy to remove the high-strength bolts.

[0026] 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 high-frequency quenching device for producing high-strength bolts, comprising a frame (1) and a cooling tank (2) located at the front end of the frame (1), characterized in that, The frame (1) is equipped with a high-frequency quenching mechanism, and the cooling tank (2) is equipped with a reciprocating lifting mechanism; The high-frequency quenching mechanism includes a drive motor (3), a set of rotating shafts (4), two sets of chain gears (5), a set of transmission chains (6), several sets of bearing plates (7), a mounting plate (8), a high-frequency quenching machine (9), and an electromagnetic heating coil (10). The drive motor (3) is horizontally installed on the left side of the rear end of the frame (1). A set of rotating shafts (4) is movably inserted into both ends of the frame (1), and the rear rotating shaft (4) is connected to the rotating end of the drive motor (3). Two sets of chain gears (5) are installed on both sides of a set of rotating shafts (4). A set of transmission chains (6) is respectively fitted on a set of chain gears (5). Several sets of bearing plates (7) are evenly installed on a set of transmission chains (6). The mounting plate (8) is installed on the left side of the front end of the frame (1). The high-frequency quenching machine (9) is installed on the mounting plate (8). The electromagnetic heating coil (10) is installed at the front end of the high-frequency quenching machine (9).

2. The high-frequency quenching device for producing high-strength bolts according to claim 1, characterized in that, The reciprocating lifting mechanism includes a set of side plates (11), a set of synchronous cylinders (12), a set of rotating gears (13), a set of lifting chains (14), a set of connecting blocks (15), and a load-bearing mesh frame (16). The set of side plates (11) is installed on both sides of the cooling tank (2). The set of synchronous cylinders (12) is installed on the set of side plates (11) with the telescopic end facing vertically upward. The set of rotating gears (13) is movably installed on the telescopic end of the set of synchronous cylinders (12). The set of lifting chains (14) is fitted on the set of rotating gears (13). The set of connecting blocks (15) is installed at one end of the set of lifting chains (14). The load-bearing mesh frame (16) is located inside the cooling tank (2) and its two ends are fixedly connected to the set of connecting blocks (15).

3. The high-frequency quenching device for producing high-strength bolts according to claim 2, characterized in that, The other end of a set of lifting chains (14) is installed on the corresponding side plate (11) by fixing blocks (17).

4. The high-frequency quenching device for producing high-strength bolts according to claim 1, characterized in that, A set of guide gears (18) are movably installed on both sides of the upper end of the cooling tank (2), and a set of lifting chains (14) are respectively mounted on a set of guide gears (18).

5. The high-frequency quenching device for producing high-strength bolts according to claim 1, characterized in that, A set of fixed slide rails (19) are installed on both sides of the cooling tank (2), and a set of connecting blocks (15) are slidably installed on the set of fixed slide rails (19) at their rear ends.

6. The high-frequency quenching device for producing high-strength bolts according to claim 1, characterized in that, Several sets of bearing plates (7) have placement grooves (20) on their upper ends.

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