Cooling-speed-controllable heat treatment furnace

Abstract

The invention relates to the field of heat treatment furnaces, and particularly discloses a cooling-speed-controllable heat treatment furnace which comprises a mounting block, a rotary drum is connected to the mounting block through a bearing, a heating furnace body is arranged on the mounting block, and the rotary drum is connected to the outer ring of the heating furnace body through a bearing. A water storage space is formed between the inner wall of the rotary drum and the outer wall of the heating furnace body; a water supply assembly connected with the refrigerating system is arranged on the mounting block and used for supplying water into the water storage space. The temperature of the heating furnace body can be uniformly controlled, the phenomenon that the local temperature difference is large is reduced, the rotating speed of the rotating mechanism corresponds to the heat exchange speed between cooling water and the heating furnace body, and therefore control over the cooling water heat exchange temperature of the device is improved, and control over the cooling speed of the heating furnace body is achieved; the treatment effect of the heating furnace body is improved, and the temperature consistency of all parts of the heating furnace body is improved, so that the feeding consistency is improved, and the product quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment furnaces, and particularly to a heat treatment furnace with a controllable cooling rate. Background Art

[0002] A heat treatment furnace is an industrial device used in the heat treatment process of metal or alloy materials. Heat treatment is a process of changing the physical and chemical properties of materials through heating and subsequent cooling, which can improve the hardness, toughness, strength or other desired properties of the materials. During use, in multiple steps such as quenching, tempering, normalizing and annealing, it is necessary to control the cooling rate. By precisely controlling the cooling process, the mechanical properties of the materials can be optimized, the microstructure of the materials and their final properties can be affected, and specific application requirements can be met.

[0003] In the existing patent CN218321520U, a heat treatment furnace with a controllable cooling rate is disclosed, which includes a heat treatment furnace body. An air-cooling device is fixed on the right side of the heat treatment furnace body. A connecting pipe is communicated and arranged on the right side of the air-cooling device. A base is arranged on the right side of the heat treatment furnace body. A water tank is fixed on the top of the base. The other end of the connecting pipe penetrates into the interior of the water tank and is communicated with a heating pipe; in the present utility model, by controlling the opening and closing of the first valve and the second valve, the cooled hot air is discharged back into the interior of the heat treatment furnace body through the return air pipe to control the cooling rate inside it. At the same time, the air-cooling device can heat the water through the heating pipe after discharging the hot air, and can also cool the hot air, solving the problems that when cooling the heat treatment furnace body currently, the cooling rate cannot be controlled, and at the same time, the direct discharge of hot air will cause thermal pollution and waste of thermal energy.

[0004] In the existing structure, the control of the cooling rate can be achieved. However, when the device controls the cooling of the heat treatment furnace, due to the certain volume of the heat treatment furnace, there is a delay effect in the heat transfer to every part of the heat treatment furnace, it is difficult to uniformly control the temperature of the heat treatment furnace, which easily causes a large local temperature difference, reduces the temperature control of the device, affects the treatment effect of the heat treatment furnace, reduces the temperature consistency of each part of the heat treatment furnace, reduces the product consistency, and affects the product quality.

[0005] Therefore, how to provide a heat treatment furnace with a controllable cooling rate is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] An object of the present invention is to provide a heat treatment furnace with a controllable cooling rate. The heat treatment furnace with a controllable cooling rate according to the present invention includes a mounting block, a rotating cylinder is rotatably connected to the mounting block through a bearing, a heating furnace body is provided on the mounting block, the rotating cylinder is rotatably connected to the outer ring of the heating furnace body, and a water storage space is formed between the inner wall of the rotating cylinder and the outer wall of the heating furnace body;

[0007] A water supply assembly connected to a refrigeration system is provided on the mounting block. The water supply assembly is used to supply water into the water storage space. A return water assembly communicated with the water supply assembly is provided inside the outer side of the heating furnace body;

[0008] A rotating mechanism is provided on the mounting block. The output end of the rotating mechanism is connected to the rotating cylinder. The rotating mechanism is used to drive the rotating cylinder to rotate so as to accelerate the flow of water in the water storage space;

[0009] A pushing assembly is provided on the mounting block. A detection assembly for detecting the water temperature in the return water assembly and the water storage space is provided on the return water assembly. The pushing assembly is connected to the detection assembly. A transmission assembly is provided on the pushing assembly. A flow regulating assembly for regulating the flow rate is provided on the transmission assembly.

[0010] Preferably, the water supply assembly includes a water tank provided on the mounting block. The water tank is connected to the refrigeration system. A booster pump is installed on the water tank. The input end of the booster pump is communicated with the water tank. The output end of the booster pump is communicated with a water delivery pipe. The end of the water delivery pipe is communicated with the water storage space.

[0011] Preferably, the return water assembly includes a partition ring provided on the outer wall of the heating furnace body. A water storage space is formed among the partition ring, the rotating cylinder and the heating furnace body. The rotating cylinder is rotatably connected to the partition ring. A plurality of return water pipes penetrating through the partition ring and the mounting block are provided on the partition ring. The return water pipes are communicated with the water storage space. An annular pipe is provided on the return water pipe. A conduit communicated with the water tank is provided on the annular pipe. The flow regulating assembly is provided on the conduit.

[0012] Preferably, the rotating mechanism includes a motor installed on the mounting block. A driving gear is fixedly sleeved on the output shaft of the motor. A driven gear meshing with the driving gear is fixedly sleeved on the outer ring of the rotating cylinder.

[0013] Preferably, the pushing assembly includes a fixing plate provided on the mounting block. A cylinder is provided on the fixing plate. A pushing piston is provided inside the cylinder. A pushing rod penetrating through the cylinder is provided on the pushing piston.

[0014] Preferably, the detection component includes an expansion airbag arranged in the cylinder. A heat conduction rod is arranged on the expansion airbag, and a temperature probe located in the annular pipe is arranged on the heat conduction rod.

[0015] Preferably, the adjustment component includes a connection block arranged on the conduit. A metering plate is arranged in the connection block. A plurality of metering holes for controlling the flow rate are formed in the metering plate. A connecting rod penetrating the connection block is arranged on the metering plate.

[0016] Preferably, the transmission component includes a first straight rack arranged on the push rod. A rotating gear meshing with the first straight rack is connected to the fixed plate by a bearing. A second straight rack meshing with the rotating gear is arranged on the connecting rod.

[0017] Preferably, a centrifugal component is arranged on the output shaft of the motor. The centrifugal component includes a shaft rod connected to the mounting block by a bearing. A driving bevel gear is fixedly sleeved on the output shaft of the motor. A driven bevel gear meshing with the driving bevel gear is fixedly sleeved on the shaft rod. A turntable is arranged on the shaft rod. A support block is arranged on the turntable. A slide rod penetrating the support block is arranged on the support block. A friction block is arranged on the slide rod. A first spring sleeved on the outer circle of the slide rod is arranged between the friction block and the support block.

[0018] Preferably, a braking component is arranged on the mounting block. The braking component includes a support plate arranged on the mounting block. A movable rod penetrating the support plate is arranged on the support plate. A brake disc adapted to the friction block is arranged on the movable rod. A second spring sleeved on the outer circle of the movable rod is arranged between the support plate and the brake disc. A magnet block is arranged at the end of the movable rod. An electromagnet is installed inside the push rod. A limiting block is arranged on the fixed plate. The movable rod penetrates the limiting block.

[0019] The beneficial effects of the present invention are as follows:

[0020] When the present invention is in use, the raw materials are put into the heating furnace body and sealed. Then, the heating furnace body is started to heat the raw materials. When controlling the cooling rate of the heating furnace body, the rotating mechanism is started. The rotating mechanism drives the rotating cylinder to rotate. At the same time, the water supply component is started to supply cooling water into the water storage space, that is, the outside of the heating furnace body. The rotation of the rotating cylinder drives the cooling water to flow, so that the cooling water evenly cools the heating furnace body. Within a certain rotational speed range of the rotating cylinder, the heat exchange between the cooling water and the heating furnace body gradually increases, that is, the cooling effect gradually improves, and the temperature of the cooling water gradually increases. The cooling water is introduced into the water supply component through the water return component to form a water supply cycle. At the same time, the refrigeration system cools the cooling water; when controlling the cooling rate, within a certain rotational speed range, the rotational speed of the rotating mechanism is increased, so that the heat exchange between the cooling water and the heating furnace body is enhanced. Within an equal time, the temperature of the cooling water rises relatively fast. When the cooling water returns to the water supply component through the water return component, the detection component detects the water temperature. When the water temperature rises, it drives the pushing component to move. The pushing component drives the transmission component to move, so that the transmission component drives the adjustment component to adjust, forcing the water flow rate to increase, and making the speed of the cooling water returning to the water supply component faster; when the rotational speed of the rotating mechanism slows down, the water temperature of the cooling water will drop relatively, causing the detection component to drive the pushing component to retreat. The pushing component drives the transmission component to move in the reverse direction, so that the adjustment component adjusts the flow rate to decrease, and makes the speed of the cooling water returning to the water supply component slower, thereby realizing the control of the cooling rate of the heating furnace body; in summary, a heat treatment furnace with a controllable cooling rate in this application can uniformly control the temperature of the heating furnace body, reduce the delay effect of heat transfer, and reduce the phenomenon of large local temperature differences. The rotational speed of the rotating mechanism corresponds to the heat exchange speed between the cooling water and the heating furnace body, thereby improving the control of the heat exchange temperature of the cooling water by the device, realizing the control of the cooling rate of the heating furnace body, improving the treatment effect of the heating furnace body, improving the consistency of the temperatures at various parts of the heating furnace body, thereby improving the consistency of feeding and improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0022] Figure 1 is a three-dimensional structural solid diagram of the present invention;

[0023] Figure 2 is an internal structural solid diagram of the present invention;

[0024] Figure 3 is a structural solid diagram of the water return component of the present invention;

[0025] Figure 4Structural entity diagram of the rotating mechanism of the present invention;

[0026] Figure 5 Partial structural entity diagram of the present invention;

[0027] Figure 6 Structural entity diagram of the detection component of the present invention;

[0028] Figure 7 Structural entity diagram of the transmission component of the present invention;

[0029] Figure 8 Structural entity diagram of the adjustment component of the present invention;

[0030] Figure 9 Structural entity diagram of the centrifugal component of the present invention;

[0031] Figure 10 Structural entity diagram of the brake component of the present invention.

[0032] In the figure: 1, mounting block; 2, rotating cylinder; 3, heating furnace body; 4, water supply component; 401, water tank; 402, booster pump; 403, water delivery pipe; 5, return water component; 501, spacer ring; 502, return water pipe; 503, annular pipe; 504, conduit; 6, rotating mechanism; 601, motor; 602, driving gear; 603, driven gear; 7, pushing component; 701, fixing plate; 702, cylinder; 703, pushing piston; 704, pushing rod; 8, detection component; 801, expansion airbag; 802, heat conducting rod; 803, temperature probe; 9, transmission component; 901, first straight rack; 902, rotating gear; 903, second straight rack; 10, adjustment component; 1001, connecting block; 1002, metering plate; 1003, metering hole; 1004, connecting rod; 11, centrifugal component; 1101, shaft rod; 1102, driving bevel gear; 1103, driven bevel gear; 1104, turntable; 1105, support block; 1106, slide bar; 1107, friction block; 1108, first spring; 12, brake component; 1201, support plate; 1202, movable rod; 1203, brake disc; 1204, second spring; 1205, magnet block; 1206, limit block. Detailed implementation manners

[0033] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0034] Embodiment 1:

[0035] As Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 As shown in Figure 9 and Figure 10 , a heat treatment furnace with a controllable cooling rate according to the present invention includes a mounting block 1. A rotating cylinder 2 is connected to the mounting block 1 by a bearing. A heating furnace body 3 is provided on the mounting block 1. The rotating cylinder 2 is connected to the outer ring of the heating furnace body 3 by a bearing. A water storage space is formed between the inner wall of the rotating cylinder 2 and the outer wall of the heating furnace body 3. The heating furnace body 3 and the rotating cylinder 2 are open at both ends, and an end cover is installed at the top;

[0036] A water supply assembly 4 connected to the refrigeration system is provided on the mounting block 1. The water supply assembly 4 is used to supply water into the water storage space. A return water assembly 5 communicating with the water supply assembly 4 is provided inside the heating furnace body 3;

[0037] A rotating mechanism 6 is provided on the mounting block 1. The output end of the rotating mechanism 6 is connected to the rotating cylinder 2. The rotating mechanism 6 is used to drive the rotating cylinder 2 to rotate so as to accelerate the flow of water in the water storage space;

[0038] A pushing assembly 7 is provided on the mounting block 1. A detection assembly 8 for detecting the water temperature in the return water assembly 5 and the water storage space is provided on the return water assembly 5. The pushing assembly 7 is connected to the detection assembly 8. A transmission assembly 9 is provided on the pushing assembly 7. A flow rate adjusting assembly 10 for adjusting the flow rate is provided on the transmission assembly 9.

[0039] Working principle: During use, the raw materials are put into the heating furnace body 3 and sealed. Then, the heating furnace body 3 is started to heat the raw materials. When controlling the cooling rate of the heating furnace body 3, the rotating mechanism 6 is started. The rotating mechanism 6 drives the rotating cylinder 2 to rotate. At the same time, the water supply component 4 is started to supply cooling water into the water storage space, that is, the outside of the heating furnace body 3. The rotation of the rotating cylinder 2 drives the cooling water to flow, so that the cooling water evenly cools the heating furnace body 3. Within a certain rotational speed range of the rotating cylinder 2, the heat exchange between the cooling water and the heating furnace body 3 gradually increases, that is, the cooling effect gradually improves, and the temperature of the cooling water gradually increases. The cooling water is introduced into the water supply component 4 through the water return component 5 to form a water supply cycle. At the same time, the refrigeration system cools the cooling water; when controlling the cooling rate, within a certain rotational speed range, the rotational speed of the rotating mechanism 6 is increased, so that the heat exchange between the cooling water and the heating furnace body 3 is enhanced. In an equal time, the temperature of the cooling water rises faster. When the cooling water returns to the water supply component 4 through the water return component 5, the detection component 8 detects the water temperature. When the water temperature rises, it drives the pushing component 7 to move. The pushing component 7 drives the transmission component 9 to move, so that the transmission component 9 drives the adjustment component 10 to adjust, forcing the water flow rate to increase, so that the speed of the cooling water returning to the water supply component 4 is accelerated; when the rotational speed of the rotating mechanism 6 slows down, the water temperature of the cooling water will decrease relatively, causing the detection component 8 to drive the pushing component 7 to retreat. The pushing component 7 drives the transmission component 9 to move in the reverse direction, so that the adjustment component 10 adjusts the flow rate to decrease, so that the speed of the cooling water returning to the water supply component 4 is slowed down, thereby realizing the control of the cooling rate of the heating furnace body 3; In summary, a heat treatment furnace with a controllable cooling rate in the present application can uniformly control the temperature of the heating furnace body 3, reduce the delay effect of heat transfer, reduce the phenomenon of large local temperature differences. The rotational speed of the rotating mechanism 6 corresponds to the heat exchange speed between the cooling water and the heating furnace body 3, thereby improving the control of the heat exchange temperature of the cooling water by the device, realizing the control of the cooling rate of the heating furnace body 3, improving the processing effect of the heating furnace body 3, improving the consistency of the temperatures at various parts of the heating furnace body 3, thereby improving the consistency of feeding and improving the quality of the product.

[0040] Embodiment 2:

[0041] As Figure 1 shown, in a heat treatment furnace with a controllable cooling rate of the present invention, the water supply component 4 includes a water tank 401 provided on the mounting block 1. The water tank 401 is connected to the refrigeration system. A booster pump 402 is installed on the water tank 401. The input end of the booster pump 402 is communicated with the water tank 401. The output end of the booster pump 402 is communicated with a water delivery pipe 403. The end of the water delivery pipe 403 is communicated with the water storage space.

[0042] As Figure 2 and Figure 3As shown in the figure, a heat treatment furnace with a controllable cooling rate according to the present invention, the return water assembly 5 includes a spacer ring 501 provided on the outer wall of the heating furnace body 3. A water storage space is formed between the spacer ring 501, the rotating cylinder 2 and the heating furnace body 3. The rotating cylinder 2 is connected to the spacer ring 501 by bearings. A plurality of return water pipes 502 penetrating through the spacer ring 501 and the mounting block 1 are provided on the spacer ring 501. The return water pipes 502 communicate with the water storage space. An annular pipe 503 is provided on the return water pipes 502. A conduit 504 communicating with the water tank 401 is provided on the annular pipe 503. The adjustment assembly 10 is provided on the conduit 504.

[0043] As Figure 1 , Figure 2 and Figure 4 shown in the figure, a heat treatment furnace with a controllable cooling rate according to the present invention, the rotating mechanism 6 includes a motor 601 installed on the mounting block 1. A driving gear 602 is fixedly sleeved on the output shaft of the motor 601. A driven gear 603 meshing with the driving gear 602 is fixedly sleeved on the outer ring of the rotating cylinder 2.

[0044] As Figure 5 and Figure 7 shown in the figure, a heat treatment furnace with a controllable cooling rate according to the present invention, the pushing assembly 7 includes a fixing plate 701 provided on the mounting block 1. A cylinder 702 is provided on the fixing plate 701. A pushing piston 703 is provided inside the cylinder 702. A pushing rod 704 penetrating through the cylinder 702 is provided on the pushing piston 703.

[0045] As Figure 5 and Figure 6 shown in the figure, a heat treatment furnace with a controllable cooling rate according to the present invention, the detection assembly 8 includes an expansion airbag 801 provided inside the cylinder 702. A heat conducting rod 802 is provided on the expansion airbag 801. A temperature probe 803 located inside the annular pipe 503 is provided on the heat conducting rod 802.

[0046] As Figure 2 , Figure 5 and Figure 8 shown in the figure, a heat treatment furnace with a controllable cooling rate according to the present invention, the adjustment assembly 10 includes a connecting block 1001 provided on the conduit 504. A control plate 1002 is provided inside the connecting block 1001. A plurality of control holes 1003 for controlling the flow rate are provided on the control plate 1002. A connecting rod 1004 penetrating through the connecting block 1001 is provided on the control plate 1002.

[0047] As Figure 2 , Figure 5 and Figure 7As shown in the figure, for a heat treatment furnace with a controllable cooling rate according to the present invention, the transmission assembly 9 includes a first straight rack 901 provided on the push rod 704. A rotating gear 902 meshing with the first straight rack 901 is connected to the fixed plate 701 by a bearing. A second straight rack 903 meshing with the rotating gear 902 is provided on the connecting rod 1004.

[0048] As Figure 2 , Figure 4 and Figure 9 As shown in the figure, for a heat treatment furnace with a controllable cooling rate according to the present invention, a centrifugal assembly 11 is provided on the output shaft of the motor 601. The centrifugal assembly 11 includes a shaft rod 1101 connected to the mounting block 1 by a bearing. A driving bevel gear 1102 is fixedly sleeved on the output shaft of the motor 601. A driven bevel gear 1103 meshing with the driving bevel gear 1102 is fixedly sleeved on the shaft rod 1101. A turntable 1104 is provided on the shaft rod 1101. A support block 1105 is provided on the turntable 1104. A slide rod 1106 penetrating the support block 1105 is provided on the support block 1105. A friction block 1107 is provided on the slide rod 1106. A first spring 1108 sleeved on the outer circle of the slide rod 1106 is provided between the friction block 1107 and the support block 1105.

[0049] As Figure 1 , Figure 2 and Figure 10 As shown in the figure, for a heat treatment furnace with a controllable cooling rate according to the present invention, a braking assembly 12 is provided on the mounting block 1. The braking assembly 12 includes a support plate 1201 provided on the mounting block 1. An active rod 1202 penetrating the support plate 1201 is provided on the support plate 1201. A brake disc 1203 adapted to the friction block 1107 is provided on the active rod 1202. A second spring 1204 sleeved on the outer circle of the active rod 1202 is provided between the support plate 1201 and the brake disc 1203. A magnet block 1205 is provided at the end of the active rod 1202. An electromagnet is installed inside the push rod 704. A limiting block 1206 is provided on the fixed plate 701. The active rod 1202 penetrates the limiting block 1206.

[0050] Working principle: When in use, the raw materials are put into the heating furnace body 3, and the heating furnace body 3 is sealed with the end cover. The heating furnace body 3 is started to heat the raw materials. When controlling the cooling rate of the heating furnace body 3, the booster pump 402 is started. The booster pump 402 introduces the cooling water that has exchanged heat with the refrigeration system in the water tank 401 into the water storage space through the water delivery pipe 403 to supplement the water in the water tank 401, so that both the water tank 401 and the water storage space are filled with water. The valve is opened, and the cooling water enters the annular pipe 503 through the water return pipe 502 on the spacer ring 501, and the cooling water flows back to the water storage space through the conduit 504;

[0051] Start the motor 601. The rotation of the output shaft of the motor 601 drives the rotation of the driving gear 602. The driving gear 602 drives the rotation of the driven gear 603. The driven gear 603 drives the rotation of the rotating drum 2. The rotation of the rotating drum 2 makes the cooling water flow evenly in the water storage space, so that the cooling water cools the heating furnace body 3 evenly, thereby realizing uniform cooling and temperature reduction treatment, reducing the delay effect of heat transfer, and reducing the phenomenon of large local temperature differences;

[0052] When the rotation speed of the rotating drum 2 increases within a certain range, the heat exchange between the cooling water and the heating furnace body 3 gradually increases, that is, the cooling effect gradually increases, and the temperature of the cooling water gradually increases. When it exceeds a certain speed, the heat exchange between the cooling water and the heating furnace body 3 will decrease, and the temperature of the cooling water will decrease;

[0053] Based on the above principle, when controlling the cooling speed of the heating furnace body 3, increase the rotation speed of the motor 601, so that the rotation speeds of the driving gear 602 and the driven gear 603 increase, so that the rotation speed of the rotating drum 2 increases, so that the flow rate of the cooling water increases, and the heat exchange between the cooling water and the heating furnace body 3 increases. In an equal time, the temperature of the cooling water will rise faster. When the cooling water flows back to the return pipe 502, the temperature probe 803 will detect the temperature in the annular pipe 503. As the water temperature rises, the temperature is transmitted to the expansion airbag 801 through the heat conduction rod 802. Due to the temperature difference generated by the water temperature, the expansion airbag 801 will expand. The expansion airbag 801 compresses the gas in the cylinder 702, increasing the pressure, so that the gas pushes the piston 703 to move. The piston 703 drives the push rod 704 to move. The push rod 704 drives the straight rack 901 to move. The straight rack 901 drives the rotating gear 902 to rotate, so that the straight rack 903 moves. The straight rack 903 drives the connecting rod 1004 to move. The connecting rod 1004 drives the control plate 1002 to move, so that the number of control holes 1003 connected to the water path increases, so that the water flow increases, thereby increasing the water flow rate and accelerating the circulation of the cooling water, so as to achieve an accelerated cooling speed and make the temperature of the heating furnace body 3 drop faster;

[0054] When the temperature drop of the heating furnace body 3 slows down, the rotation speed of the motor 601 is reduced, so that the rotation speeds of the driving gear 602 and the driven gear 603 are reduced, the rotation speed of the rotating cylinder 2 is reduced, the flow rate of the cooling water is reduced, and the heat exchange between the cooling water and the heating furnace body 3 decreases. In equal time, the temperature of the cooling water will rise more slowly. When the cooling water flows back to the return water pipe 502, the temperature probe 803 will detect the temperature in the annular pipe 503, and the water temperature drops relatively. The temperature is transmitted to the expansion airbag 801 through the heat conduction rod 802. Due to the temperature difference generated by the water temperature, the expansion airbag 801 will contract, reducing the pressure in the cylinder 702, causing the pushing piston 703 to move in the reverse direction. The pushing piston 703 drives the pushing rod 704 to move in the reverse direction, and the pushing rod 704 drives the first straight rack 901 to move in the reverse direction. The first straight rack 901 drives the rotating gear 902 to rotate in the reverse direction, thereby causing the second straight rack 903 to move in the reverse direction. The second straight rack 903 drives the connecting rod 1004 to move in the reverse direction, and the connecting rod 1004 drives the control plate 1002 to move in the reverse direction, so that the number of control holes 1003 connected to the water path decreases, reducing the water flow through, thereby reducing the water flow rate and slowing down the circulation of the cooling water, thus achieving a slower cooling speed and making the temperature drop of the heating furnace body 3 slower; thereby realizing the control of the heat exchange temperature of the cooling water by the device, realizing the control of the cooling speed of the heating furnace body 3, and improving the processing effect of the heating furnace body 3;

[0055] When the rotational speed of the motor 601 exceeds the normal range, that is, when it is overspeed, the system will automatically detect and correct the device. At this time, the rotational speed of the output shaft of the motor 601 increases, driving the rotational speed of the driving bevel gear 1102 to increase, causing the rotational speed of the driven bevel gear 1103 to increase, and the rotational speed of the shaft rod 1101 to increase. The shaft rod 1101 drives the rotational speed of the turntable 1104 to increase, and the turntable 1104 drives the support block 1105 and the friction block 1107 to increase in rotational speed. Due to the excessive rotational speed of the friction block 1107, a centrifugal force is generated on the friction block 1107, causing the friction block 1107 to move. The movement of the friction block 1107 drives the slide rod 1106 to move on the support block 1105, stretching the first spring 1108, and positioning the friction block 1107 at a certain position; a pressure sensing sheet is provided between the friction block 1107 and the first spring 1108. Due to the movement of the first spring 1108, the system will capture the signal, thereby causing the electromagnet in the push rod 704 to be energized, and the electromagnet will attract the magnet block 1205; when the rotational speed of the motor 601 is too fast, causing the rotational speed of the drum 2 to be too fast, since when it exceeds a certain speed, the heat exchange between the cooling water and the heating furnace body 3 will instead decrease, and the temperature of the cooling water will drop. When the cooling water flows back to the return pipe 502, the temperature probe 803 will detect the temperature in the annular pipe 503. The water temperature drops relatively, and the temperature is transmitted to the expansion airbag 801 through the heat conducting rod 802. Due to the temperature difference of the water temperature, the expansion airbag 801 will contract, reducing the pressure in the cylinder 702, causing the push piston 703 to move backward, and the push piston 703 drives the push rod 704 to move backward. Since the push rod 704 attracts the magnet block 1205, under the limiting action of the support plate 1201 and the limiting block 1206, at this time, the push rod 704 will drive the magnet block 1205 to move backward, causing the magnet block 1205 to drive the movable rod 1202 to move backward, and the movable rod 1202 drives the brake disc 1203 to move backward. At this time, the second spring 1204 is stretched. Since when the rotational speed of the motor 601 just exceeds the normal range, the brake disc 1203 is located outside the friction block 1107. When the rotational speed continues to increase, before the brake disc 1203 has time to move further, that is, before the cooling water and the heating furnace body 3 have time to exchange heat, the centrifugal movement of the friction block 1107 will first contact the inner wall of the brake disc 1203, causing the brake disc 1203 to apply a braking effect on the friction block 1107, reducing the rotational speed of the friction block 1107, thereby causing the rotational speeds of the slide rod 1106, the turntable 1104, the driving bevel gear 1102, and the driven bevel gear 1103 to decrease, effectively reducing the rotational speed of the motor 601, making the rotational speed of the motor 601 closer to the normal range, and achieving the effect of automatic detection and correction of the device;

[0056] The provision of the water supply component 4 can supply cooling water, thereby realizing the heat exchange with the heating furnace body 3, achieving the cooling treatment of the heating furnace body 3, making the cooling water located in the water storage space, enabling the heating furnace body 3 and the cooling water to form a uniform cooling effect, being able to uniformly control the temperature of the heating furnace body 3, reducing the delay effect of heat transfer, and reducing the phenomenon of large local temperature differences; the provision of the return water component 5 can realize the circulation of the cooling water in the water storage space, making the cooling water flow back into the water supply component 4, improving the recycling of the cooling water, and simultaneously utilizing the control function of the device on the cooling speed; the provision of the rotating mechanism 6 can provide a driving force, making the rotating cylinder 2 rotate, thereby making the water in the water storage space flow, achieving a uniform cooling effect, controlling the rotation speed of the motor 601, and realizing different controls on the cooling speed of the cooling water for the heating furnace body 3, making the cooling speed of the heating furnace body 3 controllable; the provision of the detection component 8 can detect the temperature of the cooling water in the annular pipe 503 and in the water storage space, and generate mechanical kinetic energy. The expansion and contraction of the expansion airbag 801 will act on the gas in the cylinder 702, making the device drive the pushing component 7 to move, thereby realizing the adjustment function, skillfully utilizing the temperature difference of the cooling water, and improving the automatic operation ability of the device; the provision of the pushing component 7 makes the temperature difference generate mechanical movement and linear movement, thereby realizing the action on the transmission component 9 and the function of transmitting kinetic energy. At the same time, it can make the push rod 704 move in the reverse direction, thereby realizing bidirectional movement, which is beneficial to the control of the cooling speed of the heating furnace body 3 by the device, and can cooperate with the brake component 12 to move, realizing the automatic detection and speed correction effects of the device; the provision of the transmission component 9 can transmit mechanical action, transmit the movement of the push rod 704 to the adjustment component 10, making the adjustment component 10 generate corresponding movement, thereby realizing the control function of the flow rate. When the cooling speed increases, the circulation of the cooling water accelerates, which is beneficial to the cooling effect of the heating furnace body 3; the provision of the adjustment component 10 can realize the control of the water flow rate. When the number of control holes 1003 connected to the water path increases, the water flow rate through the control holes 1003 per unit time increases. When the number of control holes 1003 connected to the water path decreases, the water flow rate through the control holes 1003 per unit time decreases, realizing the control and adjustment function of the water flow rate; the provision of the centrifugal component 11 can detect the rotation speed of the motor 601. When the rotation speed is too fast, the friction block 1107 moves due to the action of centrifugal force, making the friction block 1107 move to a certain position, and at the same time making the friction block 1107 contact the brake disc 1203, realizing the effect of correcting the rotation speed of the friction block 1107 and the motor 601, making the rotation speed close to the normal range; the provision of the brake component 12 can realize the control function on the brake disc 1203. When the rotation speed is too fast, the brake disc 1203 indirectly inhibits the rotation speed of the motor 601, making the rotation speed of the motor 601 close to the normal range, realizing the automatic detection and correction effects of the device, improving the rationality of the device, making the cooling water operate normally, and normally performing the heat exchange function on the heating furnace body 3.

[0057] As described above, it is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. A heat treatment furnace with a controllable cooling rate, characterized in that, It includes an installation block (1), on which a rotary drum (2) is connected by bearings. A heating furnace body (3) is arranged on the installation block (1). The rotary drum (2) is connected by bearings to the outer ring of the heating furnace body (3). A water storage space is formed between the inner wall of the rotary drum (2) and the outer wall of the heating furnace body (3). A water supply component (4) connected to a refrigeration system is arranged on the installation block (1). The water supply component (4) is used to supply water into the water storage space. A return water component (5) communicating with the water supply component (4) is arranged inside the outer side of the heating furnace body (3). A rotating mechanism (6) is arranged on the installation block (1). The output end of the rotating mechanism (6) is connected to the rotary drum (2). The rotating mechanism (6) is used to drive the rotary drum (2) to rotate so as to accelerate the flow of water in the water storage space. A pushing component (7) is arranged on the installation block (1). A detection component (8) for detecting the water temperature in the return water component (5) and the water storage space is arranged on the return water component (5). The pushing component (7) is connected to the detection component (8). A transmission component (9) is arranged on the pushing component (7). An adjustment component (10) for adjusting the flow rate is arranged on the transmission component (9).

2. The heat treatment furnace with a controllable cooling rate according to claim 1, wherein, The water supply component (4) includes a water tank (401) arranged on the installation block (1). The water tank (401) is connected to the refrigeration system. A booster pump (402) is installed on the water tank (401). The input end of the booster pump (402) communicates with the water tank (401). The output end of the booster pump (402) is communicated with a water delivery pipe (403). The end of the water delivery pipe (403) communicates with the water storage space.

3. The heat treatment furnace with a controllable cooling rate according to claim 2, wherein The return water component (5) includes a separating ring (501) arranged on the outer wall of the heating furnace body (3). A water storage space is formed among the separating ring (501), the rotary drum (2) and the heating furnace body (3). The rotary drum (2) is connected by bearings to the separating ring (501). A plurality of return water pipes (502) penetrating through the separating ring (501) and the installation block (1) are arranged on the separating ring (501). The return water pipes (502) communicate with the water storage space. An annular pipe (503) is arranged on the return water pipes (502). A conduit (504) communicating with the water tank (401) is arranged on the annular pipe (503). The adjustment component (10) is arranged on the conduit (504).

4. A heat treatment furnace with a controllable cooling rate according to claim 3, characterized in that, The rotating mechanism (6) includes a motor (601) installed on the installation block (1). A driving gear (602) is fixedly sleeved on the output shaft of the motor (601). A driven gear (603) meshing with the driving gear (602) is fixedly sleeved on the outer ring of the rotary drum (2).

5. A heat treatment furnace with a controllable cooling rate according to claim 4, characterized in that, The driving assembly (7) includes a fixing plate (701) arranged on the mounting block (1), a cylinder (702) is arranged on the fixing plate (701), a driving piston (703) is arranged inside the cylinder (702), and a driving rod (704) penetrating through the cylinder (702) is arranged on the driving piston (703).

6. The heat treatment furnace with a controllable cooling rate according to claim 5, characterized in that, The detection assembly (8) includes an expansion airbag (801) arranged inside the cylinder (702), a heat conducting rod (802) is arranged on the expansion airbag (801), and a temperature probe (803) located inside the annular pipe (503) is arranged on the heat conducting rod (802).

7. A heat treatment furnace with a controllable cooling rate according to claim 6, characterized in that, The adjusting assembly (10) includes a connecting block (1001) arranged on the conduit (504), a metering plate (1002) is arranged inside the connecting block (1001), a plurality of metering holes (1003) for controlling the flow rate are formed in the metering plate (1002), and a connecting rod (1004) penetrating through the connecting block (1001) is arranged on the metering plate (1002).

8. A heat treatment furnace with a controllable cooling rate according to claim 7, characterized in that, The transmission assembly (9) includes a first straight rack (901) arranged on the driving rod (704), a rotating gear (902) meshing with the first straight rack (901) is connected to the fixing plate (701) by a bearing, and a second straight rack (903) meshing with the rotating gear (902) is arranged on the connecting rod (1004).

9. A heat treatment furnace with a controllable cooling rate according to claim 8, characterized in that, An output shaft of the motor (601) is provided with a centrifugal assembly (11). The centrifugal assembly (11) includes a shaft rod (1101) connected to the mounting block (1) by a bearing. An output shaft of the motor (601) is fixedly sleeved with a driving bevel gear (1102). A driven bevel gear (1103) meshing with the driving bevel gear (1102) is fixedly sleeved on the shaft rod (1101). A turntable (1104) is arranged on the shaft rod (1101). A support block (1105) is arranged on the turntable (1104). A sliding rod (1106) penetrating through the support block (1105) is arranged on the support block (1105). A friction block (1107) is arranged on the sliding rod (1106). A first spring (1108) sleeved on the outer circle of the sliding rod (1106) is arranged between the friction block (1107) and the support block (1105).

10. A heat treatment furnace with a controllable cooling rate according to claim 9, characterized in that, A brake assembly (12) is provided on the mounting block (1). The brake assembly (12) includes a support plate (1201) provided on the mounting block (1). An active rod (1202) penetrating the support plate (1201) is provided on the support plate (1201). A brake disc (1203) adapted to the friction block (1107) is provided on the active rod (1202). A second spring (1204) sleeved on the outer circle of the active rod (1202) is provided between the support plate (1201) and the brake disc (1203). A magnet block (1205) is provided at the end of the active rod (1202). An electromagnet is installed inside the push rod (704). A limit block (1206) is provided on the fixed plate (701). The active rod (1202) penetrates the limit block (1206).

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