Pit furnace for metal heat treatment

Abstract

The utility model relates to the technical field of heat treatment equipment, in particular to a pit furnace for metal heat treatment, which comprises a furnace body, a feeding pipe is fixedly connected to the top of the furnace body, a discharging mechanism is arranged on the furnace body, an adjusting assembly is arranged on the furnace body, the discharging mechanism comprises a cover body connected with the inside of the feeding pipe in a sliding mode, and the adjusting assembly is arranged on the cover body. Sliding blocks are fixedly connected to the left side and the right side of the cover body, a first motor is fixedly mounted at the top of the cover body, a rotating shaft is fixedly connected to an output shaft of the first motor, and a cabin body is fixedly connected to the outer side of the rotating shaft. According to the pit furnace for metal heat treatment, by arranging the discharging mechanism and the adjusting assembly, workpieces can be conveniently placed on the cabin body and prevented from being stacked, during discharging, the workpieces can be taken out by lifting the cover body, discharging is rapid, next batch of annealing can be carried out, the opening time of the furnace body is short, heat loss is small, use by a user is facilitated, and the practicability is high. And the practicability of the pit furnace is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment equipment, in particular to a pit type furnace for metal heat treatment. Background Art

[0002] The pit furnace is one of the main boiler forms in today's mechanical processing production. It is a periodic operation furnace suitable for heat treatment of rods and long shaft parts. The pit furnace has a significant processing effect in the spherical treatment of carbon compounds in steel. The reason is that this equipment often has a protective atmosphere in production, so that the surface accuracy of the workpiece can be guaranteed after completion, and the toughness and rigidity of the workpiece are effectively guaranteed. The furnace body of the pit furnace is a cylindrical deep well, and the workpiece is vertically loaded into the furnace by a special crane for heating. At present, the lifting method of the pit furnace cover generally adopts a chain lifting method or a worm gear screw lift, which is costly.

[0003] During the tempering operation of the existing metal heat treatment pit furnace, the workpiece to be tempered needs to be placed in the heating furnace. During the unloading process, the heating furnace cover needs to be opened to fish out the workpiece. Unloading is difficult, time-consuming, and heat loss is high. Therefore, a metal heat treatment pit furnace is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pit-type furnace for metal heat treatment, which has the advantages of convenient unloading, etc., and solves the problem that during the tempering operation of the existing pit-type furnace for metal heat treatment, the workpiece to be tempered needs to be placed in the heating furnace, and during the unloading process, the heating furnace cover needs to be opened to fish out the workpiece, which makes unloading difficult, time-consuming and results in high heat loss.

[0005] To achieve the above object, the utility model provides the following technical solutions: a pit-type furnace for metal heat treatment, comprising a furnace body, a feeding pipe is fixedly connected to the top of the furnace body, a feeding mechanism is arranged on the furnace body, and an adjusting component is arranged on the furnace body;

[0006] The unloading mechanism includes a cover body slidably connected to the inside of the feed pipe, the left and right sides of the cover body are fixedly connected with sliders, the top of the cover body is fixedly installed with a No. 1 motor, the output shaft of the No. 1 motor is fixedly connected with a rotating shaft, and the outer side of the rotating shaft is fixedly connected with a cabin body.

[0007] Furthermore, the adjustment assembly includes two fixing plates fixedly connected to the left side of the furnace body, a No. 2 motor is fixedly installed on the bottom of the fixing plate, the output shaft of the No. 2 motor is fixedly connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a threaded block, the left side of the threaded block is fixedly connected to a fixing rod, the bottom of the fixing rod is fixedly connected to a support plate, and the bottom of the support plate is fixedly connected to four support rods.

[0008] By adopting the above technical solution, it is convenient to place the workpiece on the cabin body to prevent the workpiece from piling up. When unloading, the workpiece can be taken out by lifting the cover body. The unloading is rapid, and the next batch of annealing can be carried out thereafter. The furnace body is exposed for a short time and the heat loss is less.

[0009] Furthermore, a sealing ring is fixedly connected to the bottom of the cover body, and the bottom of the sealing ring is slidably connected to the top of the feed pipe.

[0010] By adopting the above technical solution, the sealing performance between the cover body and the feed pipe is improved.

[0011] Furthermore, slide grooves are provided on both the left and right sides of the inner wall of the feed pipe, and the inside of the slide groove is slidably connected to the outside of the sliding block.

[0012] By adopting the above technical solution, the slider on the cover body moves up and down inside the slide groove, thereby improving the stability of the cover body during movement.

[0013] Furthermore, an opening is provided on the top of the cabin.

[0014] By adopting the above technical solution, it is convenient to put the workpiece into the cabin.

[0015] Furthermore, a threaded through hole is provided inside the threaded block, and the size of the threaded through hole matches the size of the threaded rod.

[0016] Furthermore, a guide rod is fixedly connected to one side opposite to the two fixing plates, and the outer side of the guide rod is slidably connected to the inner side of the threaded block.

[0017] By adopting the above technical solution, the threaded block is limited so that it can only move up and down.

[0018] Furthermore, the bottoms of the four support rods are fixedly connected to the top of the cover body.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The pit-type furnace for metal heat treatment is convenient for placing workpieces on the cabin body by arranging a material unloading mechanism and an adjusting component to prevent the workpieces from piling up. When unloading, the workpieces can be taken out by lifting the cover body. The unloading is rapid, and the next batch of annealing can be carried out thereafter. The furnace body is exposed for a short time, and the heat loss is small, which is convenient for users to use and increases the practicality of the pit-type furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 It is the front view of the structure of the utility model.

[0023] In the figure: 1. furnace body; 2. feed pipe; 3. cover body; 4. slider; 5. No. 1 motor; 6. rotating shaft; 7. cabin body; 8. fixing plate; 9. No. 2 motor; 10. threaded rod; 11. threaded block; 12. fixing rod; 13. support plate; 14. support rod; 15. sealing ring. DETAILED DESCRIPTION

[0024] See also Figure 1-2 In this embodiment, a pit-type furnace for metal heat treatment includes a furnace body 1, a feed pipe 2 is fixedly connected to the top of the furnace body 1, and slide grooves are provided on the left and right sides of the inner wall of the feed pipe 2. A feeding mechanism is provided on the furnace body 1, and an adjusting component is provided on the furnace body 1.

[0025] The unloading mechanism includes a cover body 3 slidably connected to the inside of the feed pipe 2, a sealing ring 15 is fixedly connected to the bottom of the cover body 3, the bottom of the sealing ring 15 is slidably connected to the top of the feed pipe 2, sliders 4 are fixedly connected to the left and right sides of the cover body 3, the inside of the slide groove is slidably connected to the outside of the slider 4, a No. 1 motor 5 is fixedly installed on the top of the cover body 3, the output shaft of the No. 1 motor 5 is fixedly connected to a rotating shaft 6, the outside of the rotating shaft 6 is fixedly connected to a cabin body 7, and the top of the cabin body 7 is provided with an opening.

[0026] In this embodiment, the adjustment component includes two fixing plates 8 fixedly connected to the left side of the furnace body 1, a guide rod is fixedly connected to the opposite side of the two fixing plates 8, a No. 2 motor 9 is fixedly installed on the bottom of the bottom fixing plate 8, and the output shaft of the No. 2 motor 9 is fixedly connected to a threaded rod 10, and the outer side of the threaded rod 10 is threadedly connected to a threaded block 11, and a threaded through hole is provided inside the threaded block 11, and the size of the threaded through hole is adapted to the size of the threaded rod 10. The outer side of the guide rod is slidably connected to the inside of the threaded block 11, and a fixing rod 12 is fixedly connected to the left side of the threaded block 11, and a support plate 13 is fixedly connected to the bottom of the fixing rod 12, and four support rods 14 are fixedly connected to the bottom of the support plate 13, and the bottom of the four support rods 14 are fixedly connected to the top of the cover body 3.

[0027] The working principle of the above embodiment is as follows: by setting a feeding mechanism and an adjusting component, the No. 2 motor 9 is started, the output shaft of the No. 2 motor 9 drives the threaded rod 10 to rotate, the threaded rod 10 drives the threaded block 11 to rotate, and by setting a guide rod, the threaded block 11 is limited so that it can only move up and down, and by setting a fixing rod 12, a support plate 13 and a support rod 14, the cover body 3 is driven to move upward, so that it is convenient to lift the cabin body 7 from the inside of the furnace body 1, and then it is convenient to place the workpiece inside the cabin body 7 to prevent the workpiece from piling up, and then the cabin body 7 is placed inside the furnace body 1, and the slider 4 on the cover body 3 moves up and down inside the slide groove to improve the stability of the cover body 3 during movement, and by setting a sealing ring 15, the sealing performance of the cover body 3 and the feeding pipe 2 is increased, so that when the next batch of annealing is carried out, the furnace body 1 is open for a short time and the heat loss is less, and the No. 1 motor 5 is started, the output shaft of the No. 1 motor 5 drives the rotating shaft 6 to rotate, and the rotating shaft 6 drives the cabin body 7 to rotate, so that the workpiece is heated evenly, which is convenient for the user to use and increases the practicality of the pit furnace.

Claims

1. A pit furnace for heat treatment of metals, comprising a furnace body (1), characterized in that: A feeding pipe (2) is fixedly connected to the top of the furnace body (1), a feeding mechanism is provided on the furnace body (1), and an adjusting component is provided on the furnace body (1); The unloading mechanism comprises a cover body (3) slidably connected to the inside of the feed pipe (2), the left and right sides of the cover body (3) are fixedly connected to sliders (4), a No. 1 motor (5) is fixedly mounted on the top of the cover body (3), the output shaft of the No. 1 motor (5) is fixedly connected to a rotating shaft (6), and the outer side of the rotating shaft (6) is fixedly connected to a cabin body (7).

2. A pit-type furnace for heat treatment of metals according to claim 1, characterized in that: The adjustment assembly comprises two fixing plates (8) fixedly connected to the left side of the furnace body (1); a second motor (9) is fixedly installed at the bottom of the fixing plate (8); the output shaft of the second motor (9) is fixedly connected to a threaded rod (10); the outer side of the threaded rod (10) is threadedly connected to a threaded block (11); the left side of the threaded block (11) is fixedly connected to a fixing rod (12); the bottom of the fixing rod (12) is fixedly connected to a support plate (13); and the bottom of the support plate (13) is fixedly connected to four support rods (14).

3. A pit-type furnace for heat treatment of metals according to claim 1, characterized in that: A sealing ring (15) is fixedly connected to the bottom of the cover body (3), and the bottom of the sealing ring (15) is slidably connected to the top of the feed pipe (2).

4. A pit-type furnace for heat treatment of metals according to claim 1, characterized in that: Slide grooves are provided on both the left and right sides of the inner wall of the feed pipe (2), and the interior of the slide groove is slidably connected to the outer side of the slide block (4).

5. A pit-type furnace for heat treatment of metals according to claim 1, characterized in that: The top of the cabin (7) is provided with an opening.

6. A pit-type furnace for heat treatment of metals according to claim 2, characterized in that: A threaded through hole is provided inside the threaded block (11), and the size of the threaded through hole matches the size of the threaded rod (10).

7. A pit-type furnace for heat treatment of metals according to claim 2, characterized in that: A guide rod is fixedly connected to one side opposite to the two fixing plates (8), and the outer side of the guide rod is slidably connected to the inside of the threaded block (11).

8. A pit-type furnace for heat treatment of metals according to claim 2, characterized in that: The bottoms of the four support rods (14) are fixedly connected to the top of the cover body (3).

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