Tempering device for bolt hardening and tempering

Abstract

The tempering device comprises a base and a tempering furnace shell movably installed on the base, a rotating mechanism is arranged on the base, and lifting mechanisms are connected to the two sides of the tempering furnace shell. The rotating mechanism comprises a rotating motor, a rotating shaft, a center gear, a fixed inner gear ring, a planet carrier, three rotating shafts, three planet gears and three bearing discs. The lifting mechanism comprises a set of vertical supporting plates, a fixed circular plate, a stepping motor, a rotating lead screw, a sliding nut, a fixed circular rod and a sliding shaft sleeve. The device has the beneficial effects that bolts are arranged in the three bolt placing frames and are respectively hoisted on the bearing disc, the group of arc-shaped clamping plates can clamp the bolt placing frames, and the rotating mechanism can drive the bolt placing frames on the bearing disc to perform planetary rotation, so that the bolts in the bolt placing frames are uniformly heated; and the tempering efficiency and the tempering and tempering effect of the bolt are effectively improved, and the tempering furnace shell can be driven by the lifting mechanism to do lifting motion.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt tempering, in particular to a tempering device used for bolt tempering. Background Art

[0002] Bolt quenching and tempering refers to a double heat treatment method of quenching and high temperature tempering, the purpose of which is to make the workpiece have good comprehensive mechanical properties. High temperature tempering refers to tempering between 500-650℃. It can adjust the performance and material of steel to a great extent, and its strength, plasticity and toughness are good, with good comprehensive mechanical properties. Tempering is a heat treatment process that heats the quenched workpiece to an appropriate temperature below the critical point for a certain period of time, and then cools it in a way that meets the requirements to obtain the required structure and performance.

[0003] The existing patent application number is CN 202320956884.2, which discloses a uniform tempering device for heat treatment of slender fasteners. The slender fasteners are easily fixed by setting multiple fastener fixing sleeves. The fasteners rotate and revolve around the rotating rod. Each slender fastener is fixed separately, making the heating more uniform. However, the bolts are generally placed in the bearing frame during the tempering process, and the use of fixing sleeves to fix the loading and unloading operations is cumbersome, and the bottom of the bolts is heated unevenly, affecting the quenching and tempering treatment effect.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In view of the above defects, the utility model provides a tempering device for bolt tempering to solve the problem of bolt tempering.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tempering device for bolt quenching and tempering, comprising a base and a tempering furnace shell movably mounted on the base, wherein a rotating mechanism is provided on the base, and lifting mechanisms are connected to both sides of the tempering furnace shell;

[0008] The rotating mechanism includes a rotating motor, a rotating shaft, a central gear, a fixed inner gear ring, a planetary carrier, three rotating shafts, three planetary gears and three carrying plates. The rotating motor is installed at the bottom center of the base, the rotating shaft is movably inserted in the center of the base, and the bottom is connected to the rotating end of the rotating motor, the central gear is installed at the upper end of the rotating shaft, the fixed inner gear ring is installed at the upper center of the base, the planetary carrier is sleeved on the rotating shaft, the three rotating shafts are movably inserted in the planetary carrier, the three planetary gears are installed on the three rotating shafts, and are respectively meshed with the central gear and the fixed inner gear ring, and the three carrying plates are installed on the upper ends of the three rotating shafts.

[0009] Furthermore, the lifting mechanism includes a group of vertical support plates, a fixed circular plate, a stepper motor, a rotating screw, a sliding nut, a fixed round rod and a sliding sleeve. A group of vertical support plates are installed on both sides of the base, the fixed circular plate is installed on the upper end of a group of vertical support plates, the stepper motor is installed on the right side of the upper end of the fixed circular plate, and the rotating end is movably inserted in the fixed circular plate, the rotating screw is installed on the rotating end of the stepper motor, the sliding nut is movably sleeved on the rotating screw, the fixed round rod is installed on the left side of the bottom of the fixed circular plate, and the sliding sleeve is movably sleeved on the fixed round rod.

[0010] Furthermore, a circular hole corresponding to the tempering furnace shell is opened at the center of the upper end of the fixed circular plate, and the sliding nut and the sliding sleeve are respectively connected to the two sides of the tempering furnace shell.

[0011] Furthermore, the three supporting plates are respectively provided with placement grooves, a group of pull rods are movably inserted on both sides of the placement grooves, a group of arc-shaped clamping plates are installed at the front end of a group of pull rods, and a group of springs are installed at the rear end of a group of arc-shaped clamping plates.

[0012] Furthermore, a bolt placement frame is placed in the placement groove, and a group of lifting ears are installed on both sides of the upper end of the bolt placement frame.

[0013] Furthermore, an electric heating tube is wound around the inner wall of the tempering furnace shell, and a heat insulation layer is arranged outside the electric heating tube.

[0014] The utility model provides a tempering device for bolt tempering, which has the following beneficial effects: bolts that need to be tempered and tempered are loaded into three bolt placement frames and are hoisted on supporting plates respectively, a group of arc-shaped clamping plates can clamp the bolt placement frames, and a rotating mechanism can drive the bolt placement frames on the supporting plate to perform planetary rotation, so that the bolts in the bolt placement frames are evenly heated, effectively improving the bolt tempering efficiency and the tempering and tempering effect, and the lifting mechanism can drive the tempering furnace shell to lift and lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of a tempering device for bolt quenching and tempering.

[0016] Figure 2 This is a schematic diagram of the rotating shaft transmission of the utility model.

[0017] Figure 3 This is a top view of the carrier plate of the present invention.

[0018] Figure 4 This is a top view of the fixed circular plate of the utility model.

[0019] Figure 5This is a cross-sectional view of the tempering furnace shell of the utility model.

[0020] In the figure: 1. base; 2. tempering furnace shell; 3. rotating motor; 4. rotating shaft; 5. central gear; 6. fixed inner ring; 7. planetary carrier; 8. rotating shaft; 9. planetary gear; 10. carrier plate; 11. vertical support plate; 12. fixed circular plate; 13. stepping motor; 14. rotating screw rod; 15. sliding nut; 16. fixed round rod; 17. sliding sleeve; 18. circular hole; 19. placement groove; 20. pulling rod; 21. arc clamping plate; 22. spring; 23. bolt placement frame; 24. lifting ear; 25. electric heating tube; 26. thermal insulation layer. DETAILED DESCRIPTION

[0021] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1-5As shown: A tempering device for bolt quenching and tempering, comprising a base 1 and a tempering furnace shell 2 movably mounted on the base 1, the base 1 is provided with a rotating mechanism, and both sides of the tempering furnace shell 2 are connected with lifting mechanisms; the rotating mechanism comprises a rotating motor 3, a rotating shaft 4, a central gear 5, a fixed inner gear ring 6, a planetary carrier 7, three rotating shafts 8, three planetary gears 9 and three bearing plates 10, the rotating motor 3 is mounted at the bottom center of the base 1, the rotating shaft 4 is movably inserted at the center of the base 1, and the bottom is connected to the rotating end of the rotating motor 3, the central gear 5 is mounted The fixed inner gear ring 6 is installed at the upper end of the base 1, the planet carrier 7 is sleeved on the rotating shaft 4, the three rotating shafts 8 are movably inserted on the planet carrier 7, the three planetary gears 9 are installed on the three rotating shafts 8, and are respectively meshed with the central gear 5 and the fixed inner gear ring 6, and the three bearing plates 10 are installed on the upper ends of the three rotating shafts 8; the lifting mechanism includes a group of vertical support plates 11, a fixed circular plate 12, a stepping motor 13, a rotating screw rod 14, a sliding screw nut 15, a fixed round rod 16 and a sliding sleeve 17, a group of vertical support plates 11 are installed on the bottom On both sides of the seat 1, the fixed circular plate 12 is installed on the upper end of a group of vertical support plates 11, the stepper motor 13 is installed on the right side of the upper end of the fixed circular plate 12, and the rotating end is movably inserted in the fixed circular plate 12, the rotating screw rod 14 is installed on the rotating end of the stepper motor 13, the sliding nut 15 is movably sleeved on the rotating screw rod 14, the fixed round rod 16 is installed on the left side of the bottom of the fixed circular plate 12, and the sliding sleeve 17 is movably sleeved on the fixed round rod 16; a circular hole 18 corresponding to the tempering furnace shell 2 is opened at the center of the upper end of the fixed circular plate 12, the The sliding nut 15 and the sliding sleeve 17 are respectively connected to the two sides of the tempering furnace shell 2; the three supporting plates 10 are respectively provided with placement grooves 19, and a group of pull rods 20 are movably inserted on both sides of the placement grooves 19, a group of arc-shaped clamping plates 21 are installed at the front end of a group of pull rods 20, and a group of springs 22 are respectively installed at the rear end of a group of arc-shaped clamping plates 21; a bolt placement frame 23 is placed in the placement groove 19, and a group of lifting ears 24 are installed on both sides of the upper end of the bolt placement frame 23; an electric heating tube 25 is wound around the inner wall of the tempering furnace shell 2, and an insulation layer 26 is arranged on the outside of the electric heating tube 25.

[0022] Working principle of this embodiment: The electrical equipment used in the device is controlled by an external controller. When in use, the user first loads the bolts that need to be quenched and tempered into three bolt placement frames 23. The bolt placement frames 23 are frame structures and are respectively hoisted in the placement grooves 19 of the carrier plate 10. The bolt placement frames 23 can be clamped by pulling a set of arc-shaped clamping plates 21;

[0023] During rotation: the rotating motor 3 is installed at the bottom center of the base 1, the rotating shaft 4 is movably inserted in the center of the base 1 through a fastening bearing, and the bottom is connected to the rotating end of the rotating motor 3, the central gear 5 is installed on the upper end of the rotating shaft 4, the fixed inner gear ring 6 is installed at the center of the upper end of the base 1, the planetary carrier 7 is sleeved on the outside of the rotating shaft 4, the three rotating shafts 8 are movably inserted on the planetary carrier 7 through fastening bearings, the three planetary gears 9 are installed on the three rotating shafts 8, and are respectively meshed with the central gear 5 and the fixed inner gear ring 6, three bearing plates 10 are installed on the upper ends of the three rotating shafts 8, and the three bearing plates 10 are respectively provided with placement grooves 19, and a group of pulling rods 20 are movably inserted on both sides of the placement grooves 19, a group of pulling rods 20 are installed at the front end of the group of pulling rods 20, and a group of springs 22 are respectively installed at the rear end of the group of arc clamping plates 21, a bolt placement frame 23 is placed in the placement groove 19, and a group of lifting ears 24 are installed on both sides of the upper end of the bolt placement frame 23, such as Figure 2 and Figure 3 As shown, the rotating motor 3 drives the central gear 5 to rotate through the rotating shaft 4, and drives the bearing plates 10 on the upper ends of the three rotating shafts 8 to perform planetary rotation through the fixed inner gear ring 6, the planet carrier 7 and the three planetary gears 9, so that the bolts in the bolt placement frame 23 are evenly heated, effectively improving the bolt tempering efficiency and the quenching and tempering effect;

[0024] During tempering: a group of vertical support plates 11 are installed on both sides of the base 1, a fixed circular plate 12 is installed on the upper end of a group of vertical support plates 11, a stepper motor 13 is installed on the right side of the upper end of the fixed circular plate 12, and the rotating end is movably inserted in the fixed circular plate 12 through a fastening bearing, a rotating screw rod 14 is installed on the rotating end of the stepper motor 13, a sliding nut 15 is movably sleeved on the rotating screw rod 14, a fixed round rod 16 is installed on the left side of the bottom of the fixed circular plate 12, a sliding sleeve 17 is movably sleeved on the fixed round rod 16, a circular hole 18 corresponding to the tempering furnace shell 2 is opened at the center of the upper end of the fixed circular plate 12, the sliding nut 15 and the sliding sleeve 17 are respectively connected to the two sides of the tempering furnace shell 2, an electric heating tube 25 is wound around the inner wall of the tempering furnace shell 2, and a heat insulation layer 26 is arranged on the outside of the electric heating tube 25, such as Figure 4 and Figure 5 As shown, the stepper motor 13 rotates forward to drive the tempering furnace shell 2 to descend to the bottom for tempering treatment. After tempering is completed, the stepper motor 13 rotates reversely to drive the tempering furnace shell 2 to rise, which is convenient for loading and unloading.

[0025] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A tempering device for bolt quenching and tempering, comprising a base (1) and a tempering furnace shell (2) movably mounted on the base (1), characterized in that: The base (1) is provided with a rotating mechanism, and both sides of the tempering furnace shell (2) are connected with lifting mechanisms; The rotating mechanism comprises a rotating motor (3), a rotating shaft (4), a central gear (5), a fixed inner gear ring (6), a planet carrier (7), three rotating shafts (8), three planetary gears (9) and three bearing plates (10), wherein the rotating motor (3) is mounted at the bottom center of the base (1), the rotating shaft (4) is movably inserted at the center of the base (1), and the bottom is connected to the rotating end of the rotating motor (3), the central gear (5) is mounted on the upper end of the rotating shaft (4), the fixed inner gear ring (6) is mounted at the upper end center of the base (1), the planet carrier (7) is sleeved on the rotating shaft (4), the three rotating shafts (8) are movably inserted on the planet carrier (7), the three planetary gears (9) are mounted on the three rotating shafts (8), and are respectively meshed with the central gear (5) and the fixed inner gear ring (6), and the three bearing plates (10) are mounted on the upper ends of the three rotating shafts (8).

2. A tempering device for bolt quenching and tempering according to claim 1, characterized in that: The lifting mechanism comprises a group of vertical support plates (11), a fixed circular plate (12), a stepper motor (13), a rotating screw rod (14), a sliding nut (15), a fixed round rod (16) and a sliding sleeve (17), wherein the group of vertical support plates (11) are mounted on both sides of the base (1), the fixed circular plate (12) is mounted on the upper end of the group of vertical support plates (11), the stepper motor (13) is mounted on the right side of the upper end of the fixed circular plate (12), and the rotating end is movably inserted in the fixed circular plate (12), the rotating screw rod (14) is mounted on the rotating end of the stepper motor (13), the sliding nut (15) is movably sleeved on the rotating screw rod (14), the fixed round rod (16) is mounted on the left side of the bottom of the fixed circular plate (12), and the sliding sleeve (17) is movably sleeved on the fixed round rod (16).

3. A tempering device for bolt quenching and tempering according to claim 2, characterized in that: A circular hole (18) corresponding to the tempering furnace shell (2) is formed at the center of the upper end of the fixed circular plate (12), and the sliding nut (15) and the sliding sleeve (17) are respectively connected to two sides of the tempering furnace shell (2).

4. The tempering device for bolt quenching and tempering according to claim 1, characterized in that: The three bearing plates (10) are respectively provided with placement grooves (19), a group of pull rods (20) are movably inserted on both sides of the placement grooves (19), a group of arc-shaped clamping plates (21) are installed at the front end of the group of pull rods (20), and a group of springs (22) are installed at the rear end of the group of arc-shaped clamping plates (21).

5. A tempering device for bolt quenching and tempering according to claim 4, characterized in that: The placement groove (19) is provided with a bolt placement frame (23), and a group of lifting ears (24) are installed on both sides of the upper end of the bolt placement frame (23).

6. The tempering device for bolt quenching and tempering according to claim 1, characterized in that: An electric heating tube (25) is wound around the inner wall of the tempering furnace shell (2), and a heat insulation layer (26) is provided outside the electric heating tube (25).

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