Vertical sectional heat treatment industrial furnace

Abstract

The invention discloses a vertical sectional heat treatment industrial furnace, and relates to the technical field of industrial furnaces, the vertical sectional heat treatment industrial furnace comprises a mounting frame and a shaft piece, a mounting seat is fixedly mounted in the middle of the mounting frame, side sliding grooves are formed in the two sides of the interior of the mounting seat, and screw rods are rotatably mounted in the side sliding grooves; the device has the beneficial effects that when the height of the furnace body needs to be increased or decreased according to the length requirement of a shaft piece, a double-shaft motor can be started to drive a transmission shaft and a first bevel gear to rotate, the first bevel gear and a second bevel gear are meshed to drive a lead screw to rotate, and then a sleeve block and a first rotating base can be driven to ascend through threads; after the first rotating seat ascends to the top of the mounting seat, a first servo motor is started to drive a fourth bevel gear to rotate, the fourth bevel gear is meshed with a third bevel gear to drive a rotating shaft and a rotating plate to rotate, so that the furnace body is horizontal, the height of the furnace body is conveniently increased or decreased subsequently, climbing for disassembly and assembly is not needed, and operation is more convenient; and a hoisting tool is not needed for dismounting.

Description

Technical Field

[0001] The invention relates to the technical field of industrial furnaces, in particular to a vertical segmented heat treatment industrial furnace. Background Art

[0002] Generally, the heat treatment of shaft forgings in the machinery and metallurgical industries is completed by an integral pit-type industrial furnace. The integral pit-type furnace is a large-scale heat treatment industrial furnace, which is generally designed and built according to the outer dimensions of the largest product it processes to meet the needs of heat-processed workpieces of all sizes. However, it is precisely because of the above-mentioned design that the integral pit-type industrial furnace has the following disadvantages. It not only has high requirements for factory buildings and occupies a large area, but also has complex equipment, high construction costs and long construction periods. In addition to the above-mentioned construction disadvantages, there are still some disadvantages in the actual application of existing pit-type industrial furnaces. For most companies, the number of large long shaft workpieces they produce is small, and medium and short length shaft castings and forgings are the main ones. However, due to the limitations of existing heat treatment industrial furnaces, these medium and short length processing workpieces must also be heat treated in the same industrial furnace, leaving a large residual space in the industrial furnace, resulting in a low space occupancy rate in the industrial furnace, which directly leads to an increase in the energy consumption of the industrial furnace. Therefore, in order to solve the shortcomings of the integral industrial furnace, people have provided a segmented heat treatment industrial furnace, which can be used for shaft castings and forgings of different lengths.

[0003] At present, the existing three-dimensional segmented heat treatment industrial furnace is vertical, and the length of the furnace body will be increased according to different long-axis processing requirements to meet the processing conditions. However, due to the three-dimensional setting of the furnace body, each disassembly and assembly of the furnace body requires climbing to operate, and the furnace body needs to be connected to the lifting tools before installation. Disassembly and assembly is extremely inconvenient and the operation risk is high. For this reason, we propose a three-dimensional segmented heat treatment industrial furnace. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a vertical segmented heat treatment industrial furnace, which solves the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a vertical sectional heat treatment industrial furnace, comprising a mounting frame and a shaft member, a mounting seat is fixedly installed in the middle of the mounting frame, side slide grooves are provided on both sides of the interior of the mounting seat, a screw rod is rotatably installed inside the side slide groove, a sleeve block is threadedly installed on the outer side of the screw rod, a first rotating seat is fixedly installed on one side of the sleeve block, a dual-axis motor is fixedly installed at the bottom of the interior of the mounting frame, a transmission shaft is fixedly installed at the output end of the dual-axis motor, a first bevel gear is fixedly installed at one end of the transmission shaft, a second bevel gear is fixedly installed on the outer side of the screw rod, the first bevel gear is meshed with the second bevel gear, A rotating groove is opened inside the first rotating seat, and a rotating shaft is rotatably installed inside the rotating groove. A rotating plate is fixedly installed on the outer side of the rotating shaft. One end of the rotating shaft extends to the outer side of the first rotating seat and is fixedly installed with a third bevel gear. A first servo motor is fixedly installed on the outer side of the first rotating seat, and a fourth bevel gear is fixedly installed on the output end of the first servo motor. The fourth bevel gear is meshed with the third bevel gear. A first mounting plate is fixedly installed on the top of the rotating plate, a lower furnace body is installed on the top of the first mounting plate, two middle furnace bodies are installed on the top of the lower furnace body, a top furnace body is installed on the top of the middle furnace body, and a top cover is provided on the top of the top furnace body.

[0006] Preferably, a plurality of buffer columns are fixedly installed on both sides of the top of the mounting frame, a sliding rod is slidably installed inside the top of the buffer column, a pressure plate is fixedly installed at one end of the sliding rod, a damper is fixedly installed inside the buffer column, a buffer spring is installed on the outside of the damper, the damper and the buffer spring are both matched with the pressure plate, a U-shaped bracket is fixedly installed on the other end of the sliding rod, and the lower furnace body and the middle furnace body are both matched with the U-shaped bracket.

[0007] Preferably, a first mounting groove is provided inside the top of the lower furnace body and the two middle furnace bodies, a second mounting plate is fixedly installed on the bottom of the two middle furnace bodies and the top furnace body, the second mounting plate cooperates with the first mounting groove, a positioning sleeve is fixedly installed on the top of the outer side of the lower furnace body and the middle furnace body, a first positioning groove is provided inside the positioning sleeve, the middle furnace body and the top furnace body cooperate with the first positioning groove, a second mounting groove is provided inside the positioning sleeve, a connecting ring is fixedly installed on the outer side of the middle furnace body and the top furnace body, a third mounting plate is fixedly installed on the bottom of the connecting ring, the third mounting plate cooperates with the second mounting groove, screw holes are provided inside the lower furnace body, the second mounting plate, the positioning sleeve and the third mounting plate, fixing bolts are installed on the internal threads of the screw holes.

[0008] Preferably, a mounting rod is fixedly installed on one side of the middle furnace body and the top furnace body, an axle seat is fixedly installed on one end of the mounting rod, an outer box is fixedly installed on one side of the middle furnace body and the top furnace body, hydraulic telescopic rods are fixedly installed on both sides of the outer box, a connecting rod is fixedly installed on the output end of the hydraulic telescopic rod, one end of the connecting rod extends to the inside of the middle furnace body and the top furnace body to install a limit seat, the limit seat cooperates with the axle seat, the shaft member cooperates with the axle seat and the limit seat, a plurality of rolling grooves are opened inside the axle seat and the limit seat, balls are rollingly installed inside the rolling grooves, and the balls cooperate with the shaft member.

[0009] Preferably, a second rotating seat is rotatably installed at the bottom of the lower furnace body, a second positioning groove is opened inside the top of the second rotating seat, the shaft member cooperates with the second positioning groove, a fifth bevel gear is fixedly installed on the top of the outer side of the second rotating seat, a second servo motor is fixedly installed on the outer side of the lower furnace body, the output end of the second servo motor extends to the interior of the lower furnace body and a sixth bevel gear is fixedly installed, and the sixth bevel gear cooperates with the fifth bevel gear.

[0010] Preferably, two limiting blocks are fixedly mounted on the bottom of the first mounting plate, and two limiting grooves are provided inside the top of the mounting seat, and the limiting blocks cooperate with the limiting grooves.

[0011] Preferably, fixing plates are fixedly mounted on the bottom of both sides of the mounting frame, and fixing nails are arranged inside the fixing plates.

[0012] Preferably, a hole cooperating with the slide rod is opened inside the top of the buffer column, and the pressure plate is slidably connected to the inner wall of the buffer column.

[0013] Preferably, a hole cooperating with the screw rod is opened inside the sleeve block, and the sleeve block is slidably connected to the inner wall of the side slide groove.

[0014] The present invention provides a vertical segmented heat treatment industrial furnace, which has the following beneficial effects:

[0015] 1. The vertical segmented heat treatment industrial furnace is matched with a mounting seat, a side slide groove, a screw rod, a sleeve block, a first rotating seat, a double-axis motor, a transmission shaft, a first bevel gear, a second bevel gear, a rotating groove, a rotating shaft, a rotating plate, a third bevel gear, a first servo motor and a fourth bevel gear. When the furnace body needs to be increased or decreased in height according to the length requirement of the shaft, the double-axis motor can be turned on to drive the transmission shaft and the first bevel gear to rotate, and the first bevel gear is engaged with the second bevel gear to drive the screw rod to rotate, and then the sleeve block and the first rotating seat can be driven to rise through the thread. When the first rotating seat rises to the top of the mounting seat, the first servo motor is turned on to drive the fourth bevel gear to rotate, and the fourth bevel gear is engaged with the third bevel gear to drive the rotating shaft and the rotating plate to rotate, so that the furnace body is level, which is convenient for subsequent increase or decrease in height. There is no need to climb for disassembly and assembly, and the operation is more convenient, and no lifting tools are required for disassembly and assembly.

[0016] 2. The vertical segmented heat treatment industrial furnace is matched with a buffer column, a slide bar, a pressure plate, a damper, a buffer spring and a U-shaped bracket. When the furnace body is lowered horizontally, it can be supported by the U-shaped bracket to improve its stability during disassembly and assembly. The damper and buffer spring can buffer the furnace body to prevent the furnace body from being damaged by bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 It is a schematic diagram of the horizontal state of the furnace body of the present invention;

[0020] Figure 4 For the present invention Figure 2 A in the enlarged view;

[0021] Figure 5 For the present invention Figure 2 The enlarged view of point B in the figure;

[0022] Figure 6 For the present invention Figure 2 The enlarged view of point C in the figure;

[0023] Figure 7 For the present invention Figure 2 The enlarged view of D in the figure;

[0024] Figure 8 It is a partial cross-sectional schematic diagram of the present invention;

[0025] Fig. 9 It is a partial top view cross-sectional schematic diagram of the present invention.

[0026] In the figure: 1, mounting frame; 2, mounting seat; 3, side slide groove; 4, screw rod; 5, sleeve block; 6, first rotating seat; 7, double-axis motor; 8, transmission shaft; 9, first bevel gear; 10, second bevel gear; 11, rotating groove; 12, rotating shaft; 13, rotating plate; 14, third bevel gear; 15, first servo motor; 16, fourth bevel gear; 17, first mounting plate; 18, lower furnace body; 19, middle furnace body; 20, top furnace body; 21, top cover; 22, buffer column; 23, slide rod; 24, pressure plate; 25, damper; 26, buffer spring; 27, U-shaped bracket; 28 , first mounting groove; 29, second mounting plate; 30, positioning sleeve; 31, first positioning groove; 32, second mounting groove; 33, connecting ring; 34, third mounting plate; 35, screw hole; 36, fixing bolt; 37, shaft; 38, mounting rod; 39, shaft seat; 40, outer box; 41, hydraulic telescopic rod; 42, connecting rod; 43, limiting seat; 44, rolling groove; 45, ball; 46, second rotating seat; 47, second positioning groove; 48, fifth bevel gear; 49, second servo motor; 50, sixth bevel gear; 51, limiting block; 52, limiting groove; 53, heating component. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] See also Figures 1 to 9The present invention provides a technical solution: a vertical segmented heat treatment industrial furnace, comprising a mounting frame 1 and a shaft 37, a mounting seat 2 is fixedly installed in the middle of the mounting frame 1, side slide grooves 3 are provided on both sides of the interior of the mounting seat 2, a screw rod 4 is rotatably installed inside the side slide groove 3, a sleeve block 5 is threadedly installed on the outer side of the screw rod 4, a hole matching the screw rod 4 is provided inside the sleeve block 5, the sleeve block 5 is slidably connected to the inner wall of the side slide groove 3, a first rotating seat 6 is fixedly installed on one side of the sleeve block 5, a double-axis motor 7 is fixedly installed on the bottom of the mounting seat 2, a transmission shaft 8 is fixedly installed on the output end of the double-axis motor 7, a first bevel gear 9 is fixedly installed on one end of the transmission shaft 8, a second bevel gear 10 is fixedly installed on the outer side of the screw rod 4, and the first bevel gear 9 meshes with the second bevel gear 10 A rotating groove 11 is opened inside the first rotating seat 6, and a rotating shaft 12 is rotatably installed inside the rotating groove 11. A rotating plate 13 is fixedly installed on the outside of the rotating shaft 12. One end of the rotating shaft 12 extends to the outside of the first rotating seat 6 and is fixedly installed with a third bevel gear 14. A first servo motor 15 is fixedly installed on the outside of the first rotating seat 6. A fourth bevel gear 16 is fixedly installed on the output end of the first servo motor 15. The fourth bevel gear 16 is meshed with the third bevel gear 14. A first mounting plate 17 is fixedly installed on the top of the rotating plate 13, and a lower furnace body 18 is installed on the top of the first mounting plate 17. Two middle furnace bodies 19 are installed on the top of the lower furnace body 18, and a top furnace body 20 is installed on the top of the middle furnace body 19. A top cover 21 is provided on the top of the top furnace body 20.

[0029] A plurality of buffer columns 22 are fixedly installed on both sides of the top of the mounting frame 1, a slide rod 23 is slidably installed inside the top of the buffer column 22, a pressure plate 24 is fixedly installed at one end of the slide rod 23, a hole matching with the slide rod 23 is opened inside the top of the buffer column 22, the pressure plate 24 is slidably connected with the inner wall of the buffer column 22, a damper 25 is fixedly installed inside the buffer column 22, a buffer spring 26 is installed on the outer side of the damper 25, the damper 25 and the buffer spring 26 are both matched with the pressure plate 24, a U-shaped bracket 27 is fixedly installed on the other end of the slide rod 23, and the lower furnace body 18 and the middle furnace body 19 are both matched with the U-shaped bracket 27.

[0030] A first mounting groove 28 is provided inside the top of the lower furnace body 18 and the two middle furnace bodies 19, and a second mounting plate 29 is fixedly installed on the bottom of the two middle furnace bodies 19 and the top furnace body 20, and the second mounting plate 29 cooperates with the first mounting groove 28. A positioning sleeve 30 is fixedly installed on the top of the outer side of the lower furnace body 18 and the middle furnace body 19, and a first positioning groove 31 is provided inside the positioning sleeve 30. The middle furnace body 19 and the top furnace body 20 cooperate with the first positioning groove 31, and a second mounting groove 32 is provided inside the positioning sleeve 30. A connecting ring 33 is fixedly installed on the outer side of the middle furnace body 19 and the top furnace body 20, and a third mounting plate 34 is fixedly installed on the bottom of the connecting ring 33. The mounting plate 34 cooperates with the second mounting groove 32, and screw holes 35 are provided inside the lower furnace body 18, the second mounting plate 29, the positioning sleeve 30 and the third mounting plate 34, and the internal threads of the screw holes 35 are installed with fixing bolts 36. Among them, the first mounting groove 28, the second mounting plate 29, the positioning sleeve 30, the first positioning groove 31, the second mounting groove 32, the connecting ring 33, the third mounting plate 34, the screw holes 35 and the fixing bolts 36 cooperate to facilitate the disassembly and installation of the middle furnace body 19 and the top furnace body 20. During disassembly, the restrictions on the second mounting plate 29 and the third mounting plate 34 can be released by unscrewing the fixing bolts 36, and then the middle furnace body 19 can be removed from the lower furnace body 18.

[0031] A mounting rod 38 is fixedly installed on one side of the middle furnace body 19 and the top furnace body 20, and an axle seat 39 is fixedly installed on one end of the mounting rod 38. An outer box 40 is fixedly installed on one side of the middle furnace body 19 and the top furnace body 20. A hydraulic telescopic rod 41 is fixedly installed on both sides of the outer box 40. A connecting rod 42 is fixedly installed on the output end of the hydraulic telescopic rod 41. One end of the connecting rod 42 extends to the inside of the middle furnace body 19 and the top furnace body 20 to install a limit seat 43. The limit seat 43 is fixedly installed on the output end of the hydraulic telescopic rod 41. 3 cooperates with the shaft seat 39, the shaft member 37 cooperates with the shaft seat 39 and the limiting seat 43, a plurality of rolling grooves 44 are provided inside the shaft seat 39 and the limiting seat 43, a ball 45 is rotatably installed inside the rolling groove 44, and the ball 45 cooperates with the shaft member 37, wherein the mounting rod 38, the shaft seat 39, the outer box 40, the hydraulic telescopic rod 41, the connecting rod 42, the limiting seat 43, the rolling groove 44 and the ball 45 are used to limit the shaft member 37 arranged in the furnace body, so that it is more stable during processing.

[0032] A second rotating seat 46 is rotatably installed at the bottom of the lower furnace body 18, a second positioning groove 47 is opened inside the top of the second rotating seat 46, the shaft 37 cooperates with the second positioning groove 47, a fifth bevel gear 48 is fixedly installed on the top of the outer side of the second rotating seat 46, a second servo motor 49 is fixedly installed on the outer side of the lower furnace body 18, the output end of the second servo motor 49 extends to the interior of the lower furnace body 18 and a sixth bevel gear 50 is fixedly installed, the sixth bevel gear 50 cooperates with the fifth bevel gear 48, wherein the second rotating seat 46, the second positioning groove 47, the fifth bevel gear 48, the second servo motor 49 and the sixth bevel gear 50 are used for driving the sixth bevel gear 50 to rotate by turning on the second servo motor 49 when processing the shaft 37, and the sixth bevel gear 50 can drive the shaft 37 to rotate after the sixth bevel gear 50 is meshed with the fifth bevel gear 48, so that it can be heated more evenly during processing.

[0033] Two limit blocks 51 are fixedly installed at the bottom of the first mounting plate 17, and two limit grooves 52 are provided inside the top of the mounting seat 2, and the limit blocks 51 cooperate with the limit grooves 52, wherein the sixth bevel gear 50 and the limit blocks 51 are used to improve the stability of the first mounting plate 17 installed on the top of the mounting seat 2, wherein the lower furnace body 18, the middle furnace body 19 and the top furnace body 20 are all provided with heating components 53, and the bottoms of both sides of the mounting frame 1 are fixedly installed with fixing plates, and fixing nails are provided inside the fixing plates, wherein the fixing plates and the fixing nails are used to fix the mounting frame 1 and the mounting seat 2 to the ground, improve their overall stability, and avoid the mounting frame 1 and the mounting seat 2 from tilting when the furnace body is set to be horizontal, wherein a control box is provided at the bottom of the mounting frame 1.

[0034] In summary, when the vertical segmented heat treatment industrial furnace is in use, when it is necessary to reduce the number of the middle furnace body 19 according to the length processing requirements of the shaft 37, it is only necessary to turn on the dual-axis motor 7 through the control box to drive the transmission shaft 8 and the first bevel gear 9 to rotate, and the first bevel gear 9 is engaged with the second bevel gear 10 to drive the screw rod 4 to rotate, and then the sleeve block 5 and the first rotating seat 6 can be driven to rise through the thread. When the first rotating seat 6 rises to the top of the mounting seat 2, the first servo motor 15 is turned on to drive the fourth bevel gear 16 to rotate. The fourth bevel gear 16 is engaged with the third bevel gear 14 to drive the rotating shaft 12 and the rotating plate 13 to rotate to make the furnace body horizontal. Then the staff can remove the fixing bolts 36 on both sides of a middle furnace body 19 with tools to release the second mounting plate 29 After the third mounting plate 34 is limited, the middle furnace body 19 can be disassembled. After disassembly, another middle furnace body 19 that needs to be used is connected to the first mounting groove 28 and the second mounting groove 32 through the second mounting plate 29 and the third mounting plate 34, and then positioned, and then the fixing bolts 36 are screwed into the screw holes 35 to fix it to complete the installation. Finally, after opening the top cover 21, the shaft member 37 is placed in the furnace body and positioned through the second positioning groove 47 and supported by the shaft seat 39. After the hydraulic telescopic rod 41 is turned on through the control box, the connecting rod 42 can be driven to drive the limiting seat 43 to clamp and fix the shaft member 37. Finally, the first servo motor 15 is controlled to reverse through the control box to drive the furnace body vertically, and then the dual-axis motor 7 is turned on to reverse to lower the first rotating seat 6 before starting processing.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vertical staged heat treatment industrial furnace, comprising a mounting frame (1) and a shaft member (37), characterized in that: A mounting seat (2) is fixedly installed in the middle of the mounting frame (1), and side sliding grooves (3) are provided on both sides of the interior of the mounting seat (2). A screw rod (4) is rotatably installed inside the side sliding groove (3), and a sleeve block (5) is threadedly installed on the outer side of the screw rod (4). A first rotating seat (6) is fixedly installed on one side of the sleeve block (5). A double-axis motor (7) is fixedly installed at the bottom of the interior of the mounting seat (2), and a transmission shaft (8) is fixedly installed at the output end of the double-axis motor (7). A first bevel gear (9) is fixedly installed at one end of the transmission shaft (8). A second bevel gear (10) is fixedly installed on the outer side of the screw rod (4), and the first bevel gear (9) meshes with the second bevel gear (10). A rotating groove (11) is provided inside the first rotating seat (6), and a rotating shaft is rotatably installed inside the rotating groove (11). (12), a rotating plate (13) is fixedly mounted on the outer side of the rotating shaft (12), one end of the rotating shaft (12) extends to the outer side of the first rotating seat (6) and is fixedly mounted with a third bevel gear (14), a first servo motor (15) is fixedly mounted on the outer side of the first rotating seat (6), a fourth bevel gear (16) is fixedly mounted on the output end of the first servo motor (15), the fourth bevel gear (16) is meshed with the third bevel gear (14), a first mounting plate (17) is fixedly mounted on the top of the rotating plate (13), a lower furnace body (18) is mounted on the top of the first mounting plate (17), two middle furnace bodies (19) are mounted on the top of the lower furnace body (18), a top furnace body (20) is mounted on the top of the middle furnace body (19), and a top cover (21) is provided on the top of the top furnace body (20).

2. A vertical staged heat treatment industrial furnace according to claim 1, characterized in that: A plurality of buffer columns (22) are fixedly mounted on both sides of the top of the mounting frame (1); a slide rod (23) is slidably mounted inside the top of the buffer column (22); a pressure plate (24) is fixedly mounted on one end of the slide rod (23); a damper (25) is fixedly mounted inside the buffer column (22); a buffer spring (26) is mounted on the outside of the damper (25); the damper (25) and the buffer spring (26) are both matched with the pressure plate (24); a U-shaped bracket (27) is fixedly mounted on the other end of the slide rod (23); and the lower furnace body (18) and the middle furnace body (19) are both matched with the U-shaped bracket (27).

3. A vertical staged heat treatment industrial furnace according to claim 1, characterized in that: A first mounting groove (28) is provided inside the top of the lower furnace body (18) and the two middle furnace bodies (19); a second mounting plate (29) is fixedly installed on the bottom of the two middle furnace bodies (19) and the top furnace body (20); the second mounting plate (29) cooperates with the first mounting groove (28); a positioning sleeve (30) is fixedly installed on the top of the outer side of the lower furnace body (18) and the middle furnace body (19); a first positioning groove (31) is provided inside the positioning sleeve (30); the middle furnace body (19) and the top furnace body (20) are both aligned with the first positioning groove ( The second furnace body (31) cooperates with the positioning sleeve (30), a second mounting groove (32) is provided inside the positioning sleeve (30), the outer sides of the middle furnace body (19) and the top furnace body (20) are fixedly installed with connecting rings (33), the bottom of the connecting ring (33) is fixedly installed with a third mounting plate (34), the third mounting plate (34) cooperates with the second mounting groove (32), the lower furnace body (18), the second mounting plate (29), the positioning sleeve (30) and the third mounting plate (34) are all provided with screw holes (35), and the internal threads of the screw holes (35) are threaded with fixing bolts (36).

4. The vertical staged heat treatment industrial furnace according to claim 1, characterized in that: A mounting rod (38) is fixedly installed on one side of the middle furnace body (19) and the top furnace body (20), and a shaft seat (39) is fixedly installed on one end of the mounting rod (38). An outer box (40) is fixedly installed on one side of the middle furnace body (19) and the top furnace body (20), and hydraulic telescopic rods (41) are fixedly installed on both sides of the outer box (40). A connecting rod (42) is fixedly installed on the output end of the hydraulic telescopic rod (41). One end of the shaft (42) extends to the interior of the middle furnace body (19) and the top furnace body (20) to install a limit seat (43), the limit seat (43) cooperates with the shaft seat (39), the shaft member (37) cooperates with the shaft seat (39) and the limit seat (43), a plurality of rolling grooves (44) are provided inside the shaft seat (39) and the limit seat (43), a ball (45) is rollingly installed inside the rolling groove (44), and the ball (45) cooperates with the shaft member (37).

5. The vertical staged heat treatment industrial furnace according to claim 1, characterized in that: A second rotating seat (46) is rotatably mounted at the bottom of the lower furnace body (18), a second positioning groove (47) is provided inside the top of the second rotating seat (46), the shaft (37) cooperates with the second positioning groove (47), a fifth bevel gear (48) is fixedly mounted on the top of the outer side of the second rotating seat (46), a second servo motor (49) is fixedly mounted on the outer side of the lower furnace body (18), an output end of the second servo motor (49) extends to the interior of the lower furnace body (18) and is fixedly mounted with a sixth bevel gear (50), the sixth bevel gear (50) cooperates with the fifth bevel gear (48).

6. The vertical staged heat treatment industrial furnace according to claim 1, characterized in that: Two limit blocks (51) are fixedly mounted on the bottom of the first mounting plate (17), and two limit slots (52) are provided inside the top of the mounting seat (2), and the limit blocks (51) cooperate with the limit slots (52).

7. The vertical staged heat treatment industrial furnace according to claim 1, characterized in that: The bottoms of both sides of the mounting frame (1) are fixedly mounted with fixing plates, and fixing nails are arranged inside the fixing plates.

8. The vertical staged heat treatment industrial furnace according to claim 2, characterized in that: A hole cooperating with the slide rod (23) is provided inside the top of the buffer column (22), and the pressure plate (24) is slidably connected to the inner wall of the buffer column (22).

9. The vertical staged heat treatment industrial furnace according to claim 1, characterized in that: A hole cooperating with the screw rod (4) is provided inside the sleeve block (5), and the sleeve block (5) is slidably connected to the inner wall of the side sliding groove (3).

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