A heating furnace for detecting thermal stability of shaft working conditions with rotating function

Abstract

The present invention provides a heating furnace for detecting thermal stability of shaft working conditions with a rotating function, and relates to the technical field of thermal stability detection. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function comprises a furnace body, a furnace cavity is arranged inside the furnace body, three collecting holes are arranged inside the side wall of the furnace body, the three collecting holes are respectively located at the top, left and right sides of the furnace body, and the collecting holes penetrate the furnace body, a collecting cover is fixedly connected to the rear side wall of the furnace body, and the three collecting holes are all located inside the collecting cover. By providing the collecting holes, the collecting cover, the exhaust fan and the through hole, when the furnace door is opened, the hot air overflowing from the furnace cavity is sucked into the collecting cover under the action of the exhaust fan, and the hot air inside the furnace cavity is also sucked into the collecting cover from the through hole, and finally discharged or recovered from the conveying pipe, which effectively solves the problem of workers being harmed by the hot air inside the furnace cavity when opening the furnace door.

Description

Technical Field

[0001] The invention relates to the technical field of thermal stability detection, and in particular to a heating furnace with a rotation function for detecting thermal stability of shaft working conditions. Background Art

[0002] At present, bearings, gears and other shaft structures need to be tested for stability after manufacturing. The main purpose of thermal stability testing is to evaluate the performance stability of materials in high temperature environments to ensure the safe and reliable use of materials. During the testing process, the parts to be tested are usually placed in a heating furnace to simulate the performance changes of materials under long-term high temperature or variable temperature conditions. These tests help evaluate the heat resistance of materials and predict their service life and safety in high temperature environments.

[0003] However, when the staff opens the door of the heating furnace to take out the parts, the hot air inside the heating furnace will overflow from the furnace body at the moment of opening, which may easily cause harm to the staff. Secondly, when the staff replaces the parts, the door of the heating furnace is always in the open state, and the heating components inside the furnace body still have a very high temperature. At this time, the heating components will bake the staff, making them very uncomfortable. Summary of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the present invention provides a heating furnace for detecting thermal stability of shaft working conditions with a rotating function, which solves the problems that the hot gas in the furnace body may cause harm to the workers when they open the furnace door to take out parts, and the heating components may bake the workers and make them very uncomfortable when they replace parts.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a heating furnace for detecting thermal stability of shaft working conditions with a rotating function, comprising a furnace body, a furnace cavity is arranged inside the furnace body, three collecting holes are arranged inside the side wall of the furnace body, the three collecting holes are respectively located at the top, left and right sides of the furnace body, and the collecting holes penetrate the furnace body, a collecting cover is fixedly connected to the rear side wall of the furnace body, and the three collecting holes are all located inside the collecting cover, an exhaust fan is fixedly connected to the rear side wall of the collecting cover, the air inlet of the exhaust fan is connected to the collecting cover, and a conveying pipe is fixedly connected to the air outlet of the exhaust fan;

[0008] The inner bottom of the furnace body is slidably connected to a base, the top of the base is fixedly connected to a partition, the left and right side walls of the partition are provided with a storage cavity, the inner wall of the storage cavity is fixedly connected to a telescopic rod, the other end of the telescopic rod is fixedly connected to a slide plate, and the slide plate is slidably connected to the inner wall of the storage cavity, a spring is sleeved on the circumferential surface of the telescopic rod, a plurality of vents are provided on the front and rear side walls of the partition, and the vents pass through the storage cavity, a blocking block is fixedly connected to the middle position of the rear side wall of the partition, the rear side wall of the furnace body is provided with a through hole, and the blocking block is provided corresponding to the through hole;

[0009] Two guide rails are arranged on the left and right inner walls of the furnace cavity, and the guide rails are located above the base. The front end of the guide rails is an inclined surface. Heating coils are fixedly connected to the left and right inner walls of the furnace cavity, and the heating coils are located between the two guide rails.

[0010] Preferably, sliding cavities are provided at the four corners of the side walls of the furnace body, a slider is slidably connected inside the sliding cavity, a connecting rod is fixedly connected to the front side wall of the slider, a furnace door is fixedly connected to the front end of the connecting rod, and the base is fixedly connected to the furnace door, and a sealing strip is fixedly connected to the side of the furnace door close to the furnace body.

[0011] Preferably, a mounting hole is provided at the bottom of the base, a motor is fixedly connected to the top of the mounting hole, a turntable is fixedly connected to the output shaft of the motor, and a positioning assembly is provided on the top of the turntable.

[0012] Preferably, the positioning assembly includes an adjusting groove, a screw, a knob, a positioning rod, a placement assembly and a scale mark, the adjusting groove is arranged at the top of the turntable, the screw is rotatably connected to the inner wall of the adjusting groove, the knob is fixedly connected to one end of the screw located outside the turntable, the positioning rod is threadedly connected to the circumferential surface of the screw, and the positioning rod is slidably connected to the inner wall of the adjusting groove, the placement assembly is arranged inside the positioning rod, the scale mark is arranged on the top of the turntable, and the scale mark is located next to the adjusting groove.

[0013] Preferably, the placement assembly includes a cavity, a support plate, a magnetic block, a push rod, a push block and a top block, the cavity is arranged inside the positioning rod, the support plate is rotatably connected to the inside of the cavity through a rotating shaft, the magnetic block is fixedly connected to the inside of the cavity, the push rod is slidably connected to the side wall of the positioning rod, the push block is fixedly connected to one end of the push rod located outside the positioning rod, the top block is fixedly connected to one end of the push rod located inside the cavity, and the top block is located below the magnetic block.

[0014] Preferably, the number of the positioning components is three, and each of the positioning components is provided with three placement components.

[0015] Preferably, an observation window and a controller are provided on the front side wall of the furnace door, and the controller is located above the observation window. Two handles are also fixedly connected to the front side wall of the furnace door, and the two handles are symmetrically arranged on the left and right sides of the observation window. A temperature sensor is fixedly connected to the front side wall of the partition, and a locking assembly is provided between the furnace door and the furnace body.

[0016] Preferably, the locking assembly includes a U-shaped seat, a rotating plate, a screw rod, a twist block, a connecting seat and a U-shaped groove, the U-shaped seat is fixedly connected to the side wall of the furnace body, the rotating plate is rotatably connected to the inside of the U-shaped seat through a rotating shaft, the screw rod is threadedly connected to the inside of the rotating plate, the twist block is fixedly connected to the front end of the screw rod, the connecting seat is fixedly connected to the side wall of the furnace door, the U-shaped groove is arranged inside the connecting seat, and the screw rod is used in conjunction with the U-shaped groove.

[0017] Preferably, there are two locking assemblies, which are symmetrically arranged on the left and right sides of the furnace body, and the U-shaped seat is arranged at the same height as the connecting seat.

[0018] Preferably, a plurality of telescopic rods and a plurality of springs are arranged inside each of the storage cavities.

[0019] Beneficial Effects

[0020] The present invention provides a heating furnace for detecting thermal stability of shaft working conditions with a rotating function. It has the following beneficial effects:

[0021] The present invention provides a collecting hole, a collecting hood, an exhaust fan and a through hole. When the furnace door is opened, the hot air overflowing from the interior of the furnace cavity is sucked into the collecting hood under the action of the exhaust fan. In addition, the hot air in the furnace cavity is also sucked into the interior of the collecting hood through the through hole and finally discharged or recovered from the conveying pipe, thereby effectively preventing the staff from being harmed by the hot air in the furnace cavity when opening the furnace door.

[0022] The present invention provides partitions, storage chambers, telescopic rods, slide plates, springs, vents and guide rails. When the parts are moved out from the interior of the furnace cavity, the slide plates automatically fit with the inner wall of the furnace cavity under the action of the springs, thereby shielding the heating coils inside the furnace cavity to prevent the heating coils from baking the workers. In addition, the provision of the vents facilitates the exhaust fan to continue to extract the hot air inside the furnace cavity to prevent the hot air inside the furnace cavity from overflowing from the front. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a first-perspective stereoscopic image of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0024] Figure 2 A second-angle stereoscopic view of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0025] Figure 3 This is a top cross-sectional view of a furnace body of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0026] Figure 4 This is a sectional view of the furnace body structure of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0027] Figure 5 A bottom view of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0028] Figure 6 for Figure 3 Schematic diagram of the structure of A;

[0029] Figure 7 This is a cross-sectional view of the structure of the positioning rod part of a heating furnace for detecting the thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0030] Figure 8 This is a front cross-sectional view of a partition of a heating furnace for detecting thermal stability of shaft working conditions with a rotating function proposed by the present invention;

[0031] Fig. 9 for Figure 3 Schematic diagram of the structure of B.

[0032] Among them, 1. furnace body; 2. furnace cavity; 3. collection hole; 4. collection cover; 5. exhaust fan; 6. conveying pipe; 7. through hole; 8. sliding cavity; 9. slider; 10. connecting rod; 11. furnace door; 12. base; 13. mounting hole; 14. motor; 15. turntable; 16. positioning component; 17. partition; 18. storage cavity; 19. telescopic rod; 20. slide plate; 21. spring; 22. vent hole; 23. guide rail; 24. blocking block; 25. locking component; 26. observation window; 27. controller ; 28. handle; 29. ​​heating coil; 30. sealing strip; 31. temperature sensor; 161. adjustment slot; 162. screw; 163. knob; 164. positioning rod; 165. placement component; 166. scale mark; 1651. cavity; 1652. support plate; 1653. magnet; 1654. push rod; 1655. push block; 1656. top block; 251. U-shaped seat; 252. rotating plate; 253. screw; 254. screw block; 255. connecting seat; 256. U-shaped slot. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example

[0035] like Figure 1-9 As shown, an embodiment of the present invention provides a heating furnace for detecting thermal stability of shaft working conditions with a rotating function, comprising a furnace body 1, a furnace cavity 2 is arranged inside the furnace body 1, and three collecting holes 3 are arranged inside the side wall of the furnace body 1, and the three collecting holes 3 are respectively located at the top, left side and right side of the furnace body 1, and the collecting holes 3 run through the furnace body 1. The arrangement of the collecting holes 3, when the furnace door 11 is opened, the exhaust fan 5 is started to generate suction, and the hot air overflowing from the furnace cavity 2 is sucked into the inside of the collecting holes 3, passes through the collecting cover 4, and is finally discharged from the conveying pipe 6, or is collected, to avoid The staff was injured by the hot air at the moment of opening the furnace door 11. It should be noted that when the furnace door 11 is opened, it should not be fully opened. First open a gap of 10 cm, wait for 30 seconds and then fully open it. A collection cover 4 is fixedly connected to the rear side wall of the furnace body 1, and the three collection holes 3 are all located inside the collection cover 4. An exhaust fan 5 is fixedly connected to the rear side wall of the collection cover 4. The exhaust fan 5 is mainly used to extract hot air to prevent hot air from overflowing from the front side of the furnace body 1. The air inlet of the exhaust fan 5 is connected to the collection cover 4, and the air outlet of the exhaust fan 5 is fixedly connected to a conveying pipe 6;

[0036] The inner bottom of the furnace body 1 is slidably connected with a base 12, and the top of the base 12 is fixedly connected with a partition 17. The partition 17 and the slide plate 20 are mainly set to block the heating coil 29 inside the furnace cavity 2 to prevent the heating coil 29 from baking the staff. The left and right side walls of the partition 17 are provided with a storage cavity 18. The storage cavity 18 is mainly used to store the slide plate 20 to prevent the slide plate 20 from damaging the heating coil 29 when the base 12 enters the interior of the furnace cavity 2. A telescopic rod 19 is fixedly connected to the inner wall of the storage cavity 18, and the other end of the telescopic rod 19 is fixedly connected to the slide plate 20, and the slide plate 20 is slidably connected to the inner wall of the storage cavity 18. A spring 21 is sleeved on the circumferential surface of the telescopic rod 19. The spring 21 mainly pushes the slide plate 20 out of the storage cavity 18 so that the slide plate 20 fits with the left and right inner walls of the furnace cavity 2. The front and rear side walls of the partition 17 A plurality of vents 22 are arranged on the top and the vents 22 penetrate the storage chamber 18. When the slide plate 20 is in contact with the inner wall of the furnace chamber 2, the vents 22 are in an open state, which is convenient for air circulation inside the furnace chamber 2. The exhaust fan 5 can extract the hot air inside the furnace chamber 2 to prevent the hot air inside the furnace chamber 2 from overflowing from the front side gap. A plurality of telescopic rods 19 and a plurality of springs 21 are arranged inside each storage chamber 18. A blocking block 24 is fixedly connected to the middle position of the rear side wall of the partition 17. The blocking block 24 mainly blocks the through hole 7 to prevent the hot air from leaking during the heating process. The rear side wall of the furnace body 1 is provided with a through hole 7, and the blocking block 24 is arranged corresponding to the through hole 7. When the furnace door 11 is opened, the blocking block 24 will be pulled out from the inside of the through hole 7, thereby opening the through hole 7. The exhaust fan 5 will extract the hot air inside the furnace chamber 2 during operation.

[0037] Two guide rails 23 are provided on the left and right inner walls of the furnace cavity 2, and the guide rails 23 are located above the base 12. The setting of the guide rails 23 is mainly to limit the slide plate 20. When the furnace door 11 is fully opened, the slide plate 20 moves to the front side of the guide rails 23. At this time, the guide rails 23 do not squeeze the slide plate 20. The slide plate 20 moves out from the inside of the storage cavity 18 under the action of the spring 21 and fits with the inner wall of the furnace cavity 2. When the furnace door 11 is closed, when the slide plate 20 moves to the position of the guide rails 23, the guide rails 23 squeeze the slide plate 20 and squeeze the slide plate 20 into the storage cavity 18. It should be noted that inside the cavity 18: when the furnace door 11 is closed, a certain amount of force is required, because after the slide plate 20 moves to the position of the guide rail 23, the action of the spring 21 will produce a certain resistance. Therefore, the setting of the spring 21 and the slide plate 20 can also limit the furnace door 11 to prevent the furnace door 11 from shaking when placing or taking parts. The front end of the guide rail 23 is an inclined surface, which facilitates the slide plate 20 to slide onto the guide rail 23. The left and right inner walls of the furnace cavity 2 are fixedly connected with heating coils 29, and the heating coils 29 are located between the two guide rails 23.

[0038] Sliding cavities 8 are provided at the four corners of the side walls of the furnace body 1, and a sliding block 9 is slidably connected inside the sliding cavity 8. A connecting rod 10 is fixedly connected to the front side wall of the sliding block 9, and a furnace door 11 is fixedly connected to the front end of the connecting rod 10. The base 12 is fixedly connected to the furnace door 11, and a sealing strip 30 is fixedly connected to the side of the furnace door 11 close to the furnace body 1.

[0039] A mounting hole 13 is provided at the bottom of the base 12, and a motor 14 is fixedly connected to the top of the mounting hole 13. The motor 14 is mainly used to control the rotation of the turntable 15, thereby controlling the rotation of the detected parts. The turntable 15 is fixedly connected to the output shaft of the motor 14, and a positioning assembly 16 is provided on the top of the turntable 15. The positioning assembly 16 is mainly used to position the detected parts. The positioning assembly 16 includes an adjustment slot 161, a screw rod 162, a knob 163, a positioning rod 164, a placement assembly 165 and a scale mark 166, wherein the knob 163 is mainly used to control the rotation of the screw rod 162, thereby controlling the movement of the positioning rod 164. The setting of the scale mark 166 facilitates the precise adjustment of the moving distance of the positioning rod 164, and the placement assembly 165 mainly holds up the parts.

[0040] The adjusting groove 161 is arranged at the top of the rotating disk 15, the screw rod 162 is rotatably connected to the inner wall of the adjusting groove 161, the knob 163 is fixedly connected to one end of the screw rod 162 located outside the rotating disk 15, the positioning rod 164 is threadedly connected to the circumferential surface of the screw rod 162, and the positioning rod 164 is slidably connected to the inner wall of the adjusting groove 161, the placement component 165 is arranged inside the positioning rod 164, and the scale mark 166 is arranged at the top of the rotating disk 15, and the scale mark 166 is located next to the adjusting groove 161;

[0041] The placement component 165 includes a cavity 1651, a support plate 1652, a magnetic block 1653, a push rod 1654, a push block 1655 and a top block 1656, wherein the cavity 1651 is provided to facilitate the storage of the support plate 1652, the support plate 1652 is a metal component (which can be adsorbed by the magnetic block 1653), the magnetic block 1653 mainly fixes the support plate 1652 after storage, and the push rod 1654, the push block 1655 and the top block 1656 are provided to facilitate the support plate 1652 to be pushed out from the inside of the cavity 1651, and the support plate 1652 is kept horizontal after being pushed out, and the support plate 1652 will be automatically pushed into the inside of the cavity 1651 when the parts are taken out;

[0042] The cavity 1651 is arranged inside the positioning rod 164, the support plate 1652 is rotatably connected to the inside of the cavity 1651 through a rotating shaft, the magnetic block 1653 is fixedly connected to the inside of the cavity 1651, the push rod 1654 is slidably connected to the side wall of the positioning rod 164, the push block 1655 is fixedly connected to one end of the push rod 1654 located outside the positioning rod 164, the top block 1656 is fixedly connected to one end of the push rod 1654 located inside the cavity 1651, and the top block 1656 is located below the magnetic block 1653. There are three positioning components 16, and each positioning component 16 is provided with three placement components 165. By providing three placement components 165, parts made of three different materials can be placed at the same time, and thermal stability testing can be performed at the same time.

[0043] An observation window 26 and a controller 27 are provided on the front side wall of the furnace door 11, and the controller 27 is located above the observation window 26. Two handles 28 are also fixedly connected to the front side wall of the furnace door 11, and the two handles 28 are symmetrically arranged on the left and right sides of the observation window 26. A temperature sensor 31 is fixedly connected to the front side wall of the partition 17. The controller 27 is mainly used to control the operation of the exhaust fan 5 and the heating coil 29. The temperature sensor 31 mainly detects the temperature inside the furnace cavity 2 and sends the detected temperature to the controller 27. The staff views it through the display on the controller 27. A locking assembly 25 is provided between the furnace door 11 and the furnace body 1;

[0044] The locking assembly 25 includes a U-shaped seat 251, a rotating plate 252, a screw rod 253, a screw block 254, a connecting seat 255 and a U-shaped groove 256. When the furnace door 11 is closed, the screw rod 253 is rotated to the inside of the U-shaped groove 256, and then the screw block 254 is rotated forward, and the screw block 254 gradually approaches and squeezes the connecting seat 255, thereby achieving locking. When releasing, the screw block 254 is rotated in the reverse direction, and the screw block 254 gradually moves away from the connecting seat 255, thereby achieving release.

[0045] The U-shaped seat 251 is fixedly connected to the side wall of the furnace body 1, the rotating plate 252 is rotatably connected to the inside of the U-shaped seat 251 through a rotating shaft, the screw rod 253 is threadedly connected to the inside of the rotating plate 252, the screw block 254 is fixedly connected to the front end of the screw rod 253, the connecting seat 255 is fixedly connected to the side wall of the furnace door 11, the U-shaped groove 256 is arranged inside the connecting seat 255, and the screw rod 253 is used in conjunction with the U-shaped groove 256, there are two locking assemblies 25, and they are symmetrically arranged on the left and right sides of the furnace body 1, and the U-shaped seat 251 and the connecting seat 255 are arranged at the same height.

[0046] When the furnace door 11 is closed, the structures inside the furnace chamber 2 are all made of high temperature resistant materials, such as tungsten, bell, starvation, button, saw, and string.

[0047] Working principle: When in use, first place the shaft parts to be inspected on the support plate 1652. After placement, close the furnace door 11 and fix the furnace door 11 by rotating the screw block 254 in the forward direction. Then, control the heating coil 29 to start heating through the controller 27. After heating, the heating coil 29 stops working and the screw block 254 is rotated in the reverse direction to loosen the furnace door 11. Then, start the exhaust fan 5 and slowly open the furnace door 11. At the same time, the blocking block 24 opens the through hole 7. The exhaust fan 5 absorbs the hot air inside the furnace cavity 2 and part of the overflowed hot air, and finally discharges or collects it from the conveying pipe 6. When the furnace door 11 is fully opened, the slide plate 20 inside the storage cavity 18 fits with the inner wall of the furnace cavity 2 under the action of the spring 21, thereby blocking the internal heating coil 29. At the same time, the exhaust fan 5 is always in working condition. Then the staff can use tools to take out the heated parts for inspection.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heating furnace for detecting thermal stability of shafts with a rotating function, comprising a furnace body (1), characterized in that: A furnace cavity (2) is provided inside the furnace body (1), three collecting holes (3) are provided inside the side wall of the furnace body (1), the three collecting holes (3) are respectively located at the top, left side and right side of the furnace body (1), and the collecting holes (3) penetrate the furnace body (1), a collecting cover (4) is fixedly connected to the rear side wall of the furnace body (1), and the three collecting holes (3) are all located inside the collecting cover (4), an exhaust fan (5) is fixedly connected to the rear side wall of the collecting cover (4), an air inlet of the exhaust fan (5) is connected to the collecting cover (4), and a conveying pipe (6) is fixedly connected to the air outlet of the exhaust fan (5); The inner bottom of the furnace body (1) is slidably connected to a base (12), the top of the base (12) is fixedly connected to a partition (17), the left and right side walls of the partition (17) are both provided with a storage cavity (18), the inner wall of the storage cavity (18) is fixedly connected to a telescopic rod (19), the other end of the telescopic rod (19) is fixedly connected to a slide plate (20), and the slide plate (20) is slidably connected to the inner wall of the storage cavity (18), a spring (21) is sleeved on the circumferential surface of the telescopic rod (19), a plurality of ventilation holes (22) are both provided on the front and rear side walls of the partition (17), and the ventilation holes (22) penetrate the storage cavity (18), a blocking block (24) is fixedly connected to the middle position of the rear side wall of the partition (17), a through hole (7) is provided on the rear side wall of the furnace body (1), and the blocking block (24) is arranged corresponding to the through hole (7); Two guide rails (23) are provided on the left and right inner walls of the furnace cavity (2), and the guide rails (23) are located above the base (12). The front end of the guide rails (23) is an inclined surface. A heating coil (29) is fixedly connected to the left and right inner walls of the furnace cavity (2), and the heating coil (29) is located between the two guide rails (23).

2. According to the heating furnace for detecting thermal stability of shaft working conditions with a rotating function as described in claim 1, it is characterized in that: Sliding cavities (8) are provided at the four corners of the side wall of the furnace body (1), a sliding block (9) is slidably connected inside the sliding cavity (8), a connecting rod (10) is fixedly connected to the front side wall of the sliding block (9), a furnace door (11) is fixedly connected to the front end of the connecting rod (10), and a base (12) is fixedly connected to the furnace door (11), and a sealing strip (30) is fixedly connected to the side of the furnace door (11) close to the furnace body (1).

3. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 1 is characterized in that: A mounting hole (13) is provided at the bottom of the base (12); a motor (14) is fixedly connected to the top of the mounting hole (13); a rotating disk (15) is fixedly connected to the output shaft of the motor (14); and a positioning assembly (16) is provided at the top of the rotating disk (15).

4. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 3 is characterized in that: The positioning assembly (16) comprises an adjusting groove (161), a screw rod (162), a knob (163), a positioning rod (164), a placement assembly (165) and a scale mark (166); the adjusting groove (161) is arranged at the top of the turntable (15); the screw rod (162) is rotatably connected to the inner wall of the adjusting groove (161); the knob (163) is fixedly connected to one end of the screw rod (162) located outside the turntable (15); the positioning rod (164) is threadedly connected to the circumferential surface of the screw rod (162); the positioning rod (164) is slidably connected to the inner wall of the adjusting groove (161); the placement assembly (165) is arranged inside the positioning rod (164); the scale mark (166) is arranged at the top of the turntable (15); and the scale mark (166) is located next to the adjusting groove (161).

5. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 4 is characterized in that: The placement assembly (165) comprises a cavity (1651), a support plate (1652), a magnetic block (1653), a push rod (1654), a push block (1655) and a top block (1656); the cavity (1651) is arranged inside the positioning rod (164); the support plate (1652) is rotatably connected to the inside of the cavity (1651) via a rotating shaft; the magnetic block (1653) is fixedly connected to the inside of the cavity (1651); the push rod (1654) is slidably connected to the side wall of the positioning rod (164); the push block (1655) is fixedly connected to one end of the push rod (1654) located outside the positioning rod (164); the top block (1656) is fixedly connected to one end of the push rod (1654) located inside the cavity (1651); and the top block (1656) is located below the magnetic block (1653).

6. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 5 is characterized in that: The number of the positioning components (16) is three, and each of the positioning components (16) is provided with three placement components (165).

7. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 2 is characterized in that: An observation window (26) and a controller (27) are provided on the front side wall of the furnace door (11), and the controller (27) is located above the observation window (26). Two handles (28) are also fixedly connected to the front side wall of the furnace door (11), and the two handles (28) are symmetrically arranged on the left and right sides of the observation window (26). A temperature sensor (31) is fixedly connected to the front side wall of the partition (17), and a locking assembly (25) is provided between the furnace door (11) and the furnace body (1).

8. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 7, characterized in that: The locking assembly (25) comprises a U-shaped seat (251), a rotating plate (252), a screw rod (253), a screw block (254), a connecting seat (255) and a U-shaped groove (256); the U-shaped seat (251) is fixedly connected to the side wall of the furnace body (1); the rotating plate (252) is rotatably connected to the inside of the U-shaped seat (251) via a rotating shaft; the screw rod (253) is threadedly connected to the inside of the rotating plate (252); the screw block (254) is fixedly connected to the front end of the screw rod (253); the connecting seat (255) is fixedly connected to the side wall of the furnace door (11); the U-shaped groove (256) is arranged inside the connecting seat (255); and the screw rod (253) and the U-shaped groove (256) are used in conjunction with each other.

9. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 8, characterized in that: The number of the locking assemblies (25) is two and they are symmetrically arranged on the left and right sides of the furnace body (1); the U-shaped seat (251) and the connecting seat (255) are arranged at the same height.

10. The heating furnace for detecting thermal stability of shaft working conditions with a rotating function according to claim 1, characterized in that: A plurality of telescopic rods (19) and a plurality of springs (21) are arranged inside each of the storage chambers (18).

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