Heat treatment tempering furnace

Abstract

The present invention relates to a heat treatment tempering furnace, which relates to the technical field of kilns and furnaces. The furnace system comprises a heating furnace system, a plurality of conveyors, a plurality of random deflection systems and a water spray cooling system. The heating furnace system and the water spray cooling system are connected by a conveyor. The input end and the output end of the heating furnace system are both provided with conveyors. The random deflection system comprises a deflection chassis, a deflection disk and a deflection device. A rotation groove is provided on the lower side of the geometric center of the deflection chassis, a rotation cone is provided at the rotation center of the deflection disk, and a rotation gap is provided between the deflection chassis and the deflection disk due to the padding effect of the rotation cone. The deflection disk swings on the deflection chassis, and the deflection device pushes a workpiece, so that the workpiece deflects and swings in the deflection disk, so that the workpiece is heated and cooled smoothly.

Description

Technical Field

[0001] The present invention relates to the technical field of kilns, in particular to a heat treatment tempering furnace. Background Art

[0002] Heat treatment furnaces are commonly used in the metalworking industry, primarily for tempering metal materials to improve their mechanical properties and service life. Through heating and holding, these furnaces induce phase changes in metal materials, thereby improving their structure and properties. Their operating principle is to achieve the desired mechanical and physical properties by controlling factors such as heating temperature, holding time, and cooling rate.

[0003] A quenching and tempering heat treatment furnace primarily consists of a furnace body, heating system, control system, furnace door, and lining. The furnace body is typically constructed of steel or refractory materials, offering excellent high-temperature resistance and thermal insulation properties. The heating system provides heat energy through electricity, gas, or oil, raising the furnace temperature to the desired treatment temperature. An intelligent control system enables precise control of parameters such as furnace temperature and heating time. The furnace door is typically water-cooled to ensure a tight seal and longevity. The furnace lining provides thermal insulation and insulation.

[0004] When placing metal materials in the furnace, they should be evenly distributed to avoid local overheating or overcooling. The workpieces in existing heat treatment tempering furnaces experience uneven heating and cooling, which affects the heat treatment effect. In the existing technology, when heat treating gear shaft workpieces and gear workpiece blanks, they are often placed directly on metal trays and sent into the furnace for heating, which makes the workpieces easily heated unevenly. Summary of the Invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a heat treatment tempering furnace, which allows the workpiece to be heated and cooled evenly.

[0006] The technical solution adopted by the present invention is:

[0007] A heat treatment tempering furnace comprises a heating furnace system, several conveyors, several random deflection systems and a water spray cooling system. The heating furnace system and the water spray cooling system are connected by a conveyor. The input end and the output end of the heating furnace system are both provided with conveyors. The random deflection system comprises a deflection chassis, a deflection disk and a deflection device. A rotation groove is provided at the geometric center of the deflection chassis. A rotation cone is provided on the lower side of the rotation center of the deflection disk, which is pressed on the rotation groove. A rotation gap is provided between the deflection chassis and the deflection disk due to the raising action of the rotation cone. The deflection disk swings on the deflection chassis. The deflection device pushes the workpiece so that the workpiece deflects and swings in the deflection disk.

[0008] Preferably, the heating furnace system includes a heating furnace body and a plurality of hatch lifting devices, each of the hatch lifting devices is installed at the furnace inlet and the furnace outlet of the heating furnace body, and the heating furnace body is installed with a plurality of gas guns.

[0009] Preferably, the door lifting device includes a door lifting plate, a door lifting cylinder and several door lifting rails. The door lifting plate is slidably mounted on the door lifting rails through a slider. The door lifting cylinder is mounted on the heating furnace body. The door lifting cylinder is transmission-connected to the door lifting plate. The door lifting plate is mounted on the corresponding furnace inlet and furnace outlet.

[0010] Preferably, the conveyor includes conveying rollers and a conveying frame, each of the conveying rollers is rotatably mounted on the conveying frame, each of the conveying rollers is driven by a chain, and the chain is connected to a sprocket on an output end of an external conveying motor.

[0011] Preferably, the water spray cooling system includes a water spray tunnel, and a plurality of water spray ports are provided on the top and sides of the water spray tunnel.

[0012] Preferably, the rotation groove is a cylindrical groove.

[0013] Preferably, the rotating cone is conical.

[0014] Preferably, the deflection device includes a push ring and a tilting cylinder, the lower end of the push ring is provided with a guide rod that slides with the tilting cylinder, the tilting cylinder and the guide rod can be fixed to each other, the tilting cylinder can be rotatably installed on the deflection disk, and the tilting cylinder and the deflection disk can be fixed to each other.

[0015] Preferably, the deflection device includes a pushing cone block and a pushing adaptation plate, a conical groove is formed on the upper side of the rotation center position of the deflection disk, the lower side of the pushing cone block is adapted to the conical groove, the lower side of the pushing adaptation plate is provided with a swinging blind hole adapted to the upper side of the pushing cone block, the pushing adaptation plate is placed on the pushing cone block through the swinging blind hole, and a workpiece is placed on the pushing adaptation plate.

[0016] The beneficial effects of the present invention are:

[0017] The heating furnace system and the water spray cooling system are connected by a conveyor, and the workpiece is conveyed by the conveyor. Conveyors are provided at the input end and the output end of the heating furnace system. The workpiece is placed on the random deflection system, and the workpiece enters and exits the heating furnace system and the water spray cooling system through each conveyor. The random deflection system includes a deflection chassis, a deflection disk and a deflection device. A rotation groove is provided at the geometric center of the deflection chassis, and a rotation cone is provided on the lower side of the rotation center of the deflection disk, which is pressed on the rotation groove. A rotation gap is provided between the deflection chassis and the deflection disk due to the raising effect of the rotation cone. The deflection disk swings on the deflection chassis so that the deflection disk is heated evenly. The deflection device pushes the workpiece so that the workpiece deflects and swings in the deflection disk. Under the pushing action of the deflection device, the workpiece is deflected by the action of water flow or gas during the transportation and process of the conveyor, as well as when heated and cooled in the heating furnace system and the water spray cooling system, so that the workpiece is heated and cooled smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0020] Figure 3 Schematic diagram of the explosion structure of the random deflection system in Example 1.

[0021] Figure 4 Schematic diagram of the assembly structure of the random deflection system in Example 1.

[0022] Figure 5 Schematic diagram of the installation relationship between the deflection disk and the deflection device in Example 1.

[0023] Figure 6 Schematic cross-sectional view of the random deflection system in Example 1.

[0024] Figure 7 Schematic cross-sectional view of the random deflection system in Example 2.

[0025] Figure 8 for Figure 7 Enlarged schematic diagram of point B in the middle.

[0026] Description of reference numerals:

[0027] 1. Heating furnace system; 11. Heating furnace body; 12. Door lifting device; 121. Door lifting cylinder; 122. Door lifting plate; 123. Door lifting rail;

[0028] 2. Conveyor;

[0029] 3. Random deflection system; 31. Deflection chassis; 311. Rotation groove; 32. Deflection plate; 321. Rotation cone; 322. Conical groove; 33. Deflection device; 331. Push ring; 332. Tilting cylinder; 333. Push cone block; 334. Push adaptor plate; 3341. Swing blind hole; 34. Rotation joint; 35. Center of gravity adjustment block; 36. Guide rod;

[0030] 4. Water spray cooling system. DETAILED DESCRIPTION

[0031] Example 1

[0032] The present invention will be further described below in conjunction with the accompanying drawings:

[0033] like Figure 1 — Figure 6 As shown, in order to process gear shaft workpieces, this embodiment provides a heat treatment tempering furnace, including a heating furnace system 1, a plurality of conveyors 2, a plurality of random deflection systems 3 and a water spray cooling system 4. The heating furnace system 1 and the water spray cooling system 4 are connected by a conveyor 2, and the workpiece is transported by the conveyor 2. The input end and the output end of the heating furnace system 1 are both provided with conveyors 2. The workpiece is placed on the random deflection system 3, and the workpiece enters and exits the heating furnace system 1 and the water spray cooling system 4 through each conveyor 2. The random deflection system 3 includes a deflection chassis 31, a deflection disk 32 and a deflection device 33. The geometric center of the deflection chassis 31 is provided with a rotation groove 311, and the rotation center of the deflection disk 32 is provided with a rotation groove 311. A rotating cone 321 is provided on the lower side to press on the rotating groove 311. Since there is point contact between the rotating groove 311 and the rotating cone 321, a rotating gap 34 is provided between the deflection chassis 31 and the deflection disk 32 due to the raising effect of the rotating cone 321. The deflection disk 32 swings on the deflection chassis 31, so that the deflection disk 32 is heated evenly, and the deflection device 33 pushes the workpiece so that the workpiece deflects and swings in the deflection disk 32. Under the pushing action of the deflection device 33, the workpiece is deflected by the water flow or gas flow during transportation and process of the conveyor 2, and during heating and cooling in the heating furnace system 1 and the water spray cooling system 4, thereby changing the contact position of the workpiece and making the heating and cooling of the workpiece smooth.

[0034] Specifically, the heating furnace system 1 includes a heating furnace body 11 and several hatch lifting devices 12. Each hatch lifting device 12 is installed at the furnace inlet and furnace outlet of the heating furnace body 11. The heating furnace body 11 is equipped with several gas guns to heat the workpiece to achieve heat treatment.

[0035] Specifically, the door lifting device 12 includes a door lifting plate 122, a door lifting cylinder 121 and several door lifting rails 123. The door lifting plate 122 is slidably installed on the door lifting rail 123 through a slider. The door lifting cylinder 121 is installed on the heating furnace body 11. The door lifting cylinder 121 is transmission-connected to the door lifting plate 122. The door lifting plate 122 is installed on the corresponding furnace body inlet and furnace body outlet. The door lifting cylinder 121 drives the door lifting plate 122 to rise and fall, thereby opening and closing the heating furnace body 11, preventing heat loss, and having an energy-saving effect.

[0036] Specifically, the conveyor 2 includes conveyor rollers and a conveyor frame, and each conveyor roller is rotatably mounted on the conveyor frame. Each conveyor roller is driven by a chain, and the chain is connected to the sprocket on the output end of the external conveying motor to realize the conveyance of the random deflection system 3 and the workpiece carried by the random deflection system 3.

[0037] Specifically, the water spray cooling system 4 includes a water spray tunnel, and a plurality of water spray ports are provided on the top and sides of the water spray tunnel for cooling the workpiece. A PVC door curtain is provided at the outlet of the water spray tunnel to prevent water mist from leaking and affecting the humidity of the factory.

[0038] Specifically, the rotating groove 311 is a cylindrical groove, the rotating cone 321 is conical, and the height of the rotating cone 321 is higher than the depth of the cylindrical groove, thereby generating a rotating gap 34. The rotating gap 34 provides space for the rotation of the deflection disk 32. Under the lifting effect of the rotating cone 321, the rotating cone 321 is in point contact with the deflection chassis 31. During the transportation of the deflection chassis 31, the deflection disk 32 is able to swing on the deflection chassis 31, and the cylindrical groove limits the lateral position of the rotating cone 321 to prevent it from detaching.

[0039] The cam 332 is fixed to the workpiece 32 by the screw thread 334 and the guide rod 36 for locking the cam 332.

[0040] Please note that Figure 6As shown, the contact position between the gear shaft workpiece and the deflection disk 32 is the tooth surface position, which is a key position in the high-temperature tempering step in the quenching and tempering treatment. Therefore, when most of the tooth surfaces have been lifted away from the deflection disk 32, a center of gravity adjustment block 35 can be set in the deflection disk 32. The side of the center of gravity adjustment block 35 close to the gear shaft workpiece is thinner than the side away from the gear shaft workpiece, thereby maximizing the smooth flow of heat in the furnace and reducing the impact on the temperature control of the gear shaft workpiece. More importantly, by setting the center of gravity adjustment blocks 35 of different sizes, the center of gravity position of the gear shaft workpiece can be controlled, so that the deflection disk 32 can rotate and swing smoothly.

[0041] Example 2

[0042] To process gear parts, such as Figure 1 、 Figure 2 、 Figure 7 and Figure 8 As shown, the only difference between this embodiment and Example 1 is that the deflection device 33 includes a push cone block 333 and a push adaptor plate 334. A conical groove 322 is formed on the upper side of the rotation center of the deflection disk 32. The lower side of the push cone block 333 is adapted to the conical groove 322. The lower side of the push adaptor plate 334 is provided with a swing blind hole 3341 that adapts to the upper side of the push cone block 333. The push adaptor plate 334 is placed on the push cone block 333 through the swing blind hole 3341. When a workpiece is placed on the push adaptor plate 334, the point contact between the swing blind hole 3341 and the push cone block 333 allows the gear-like workpiece to swing on the deflection disk 32 during transportation, changing the contact position of the workpiece and achieving uniform heating. To facilitate the formation of the conical groove 322, the deflection disk 32 is simultaneously formed with the conical groove 322 and the rotating cone 321 by stamping.

[0043] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Heat treatment tempering furnace, characterized in that, The invention comprises a heating furnace system, several conveyors, several random deflection systems and a water spray cooling system. The heating furnace system and the water spray cooling system are connected by a conveyor. The input end and the output end of the heating furnace system are both provided with conveyors. The random deflection system comprises a deflection chassis, a deflection disk and a deflection device. A rotation groove is provided at the geometric center of the deflection chassis. A rotation cone is provided on the lower side of the rotation center of the deflection disk and is pressed on the rotation groove. A rotation gap is provided between the deflection chassis and the deflection disk under the padding effect of the rotation cone. The deflection chassis and the deflection disk have a rotation gap under the padding effect of the rotation cone. The turntable swings on the deflection chassis, and the deflection device pushes the workpiece so that the workpiece deflects and swings in the deflection disk. The rotation groove is a cylindrical groove, and the rotation cone is conical. The deflection device includes a pushing cone block and a pushing adaptation plate. A conical groove is formed on the upper side of the rotation center position of the deflection disk, and the lower side of the pushing cone block is adapted to the conical groove. The lower side of the pushing adaptation plate is provided with a swinging blind hole adapted to the upper side of the pushing cone block. The pushing adaptation plate is placed on the pushing cone block through the swinging blind hole, and the workpiece is placed on the pushing adaptation plate.

2. The heat treatment tempering furnace according to claim 1, characterized in that: The heating furnace system includes a heating furnace body and a plurality of hatch lifting devices, each of the hatch lifting devices is installed at the furnace inlet and the furnace outlet of the heating furnace body, and the heating furnace body is installed with a plurality of gas guns.

3. The heat treatment tempering furnace according to claim 2, characterized in that: The door lifting device includes a door lifting plate, a door lifting cylinder and several door lifting rails. The door lifting plate is slidably installed on the door lifting rails through a slider. The door lifting cylinder is installed on the heating furnace body. The door lifting cylinder is transmission-connected to the door lifting plate. The door lifting plate is installed on the corresponding furnace inlet and furnace outlet.

4. The heat treatment tempering furnace according to claim 1, characterized in that: The conveyor includes a conveying roller and a conveying frame, each of the conveying rollers is rotatably mounted on the conveying frame, and each of the conveying rollers is driven by a chain, which is connected to a sprocket on the output end of an external conveying motor.

5. The heat treatment tempering furnace according to claim 1, characterized in that: The water spray cooling system comprises a water spray tunnel, and a plurality of water spray ports are provided on the top and sides of the water spray tunnel.

6. The heat treatment tempering furnace according to claim 1, characterized in that: The deflection device includes a push ring and a tilting cylinder. The lower end of the push ring is provided with a guide rod that slides with the tilting cylinder. The tilting cylinder and the guide rod are fixed to each other. The tilting cylinder is rotatably installed on the deflection disk. The tilting cylinder and the deflection disk are fixed to each other.

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