High-quenching-penetration crack-preventing external spraying device

Abstract

The invention relates to the technical field of quenching cooling, in particular to a high-through-quenching crack-preventing external spraying device which comprises a main body mechanism, the main body mechanism comprises a conveyor, a water tank is fixedly mounted in the conveyor, and an auxiliary cooling mechanism is arranged in the water tank; the auxiliary cooling mechanism comprises an auxiliary moving unit; the auxiliary cooling mechanism further comprises an auxiliary shaking unit. According to the high-quenching-through anti-crack external spraying device, through cooperative use of the auxiliary moving unit, the auxiliary shaking unit and the steam discharging mechanism, the water spraying sleeve can rotate in a reciprocating mode; and meanwhile, the water spraying sleeve can rotate in a reciprocating mode in the moving process in cooperation with movement of the water spraying sleeve, a water column for spraying water can achieve an S-shaped moving track, each position of the metal rod can be cooled repeatedly, and meanwhile air flow in a water spraying cooling area is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of quenching and cooling, in particular to a high-hardening and crack-proof external spraying device. Background Art

[0002] Quenching is a process in metal material processing, in which the metal workpiece is heated to an appropriate temperature and maintained for a period of time, and then immersed in a quenching medium for rapid cooling to increase the hardness and strength of the workpiece.

[0003] When processing metal rods, they need to be quenched. First, the metal rods are passed through a heating furnace and then cooled by an external spray device to complete the quenching. When existing external spray devices cool heated metal rods, they usually spray water at fixed points, which will result in a shorter time for water to be sprayed on a contact point of the workpiece. At the same time, the water flow at each point on the metal rod is different and uneven, which will lead to poor cooling effect. The high temperature during quenching will cause cracks on the surface of the metal rod, thus affecting the normal use of the metal rod. To this end, we propose a high-hardening and crack-proof external spray device.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing high-hardenability anti-crack external spraying device on the market, and even if it can be solved, it needs to be solved with the cooperation of external tools, which cannot achieve the desired effect. Therefore, we propose a high-hardenability anti-crack external spraying device. Summary of the invention

[0005] In view of this, the object of the present invention is to provide a high hardenability and crack prevention external spraying device to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the technical solutions adopted are as follows: A high hardening and crack-proof external spraying device comprises a main body mechanism, the main body mechanism comprises a conveyor, a water tank is installed inside the conveyor, a bracket is fixedly installed on the upper part of the water tank, a water spraying sleeve is slidably installed on the inner wall of the bracket, a plurality of spray heads are fixedly connected to the inner wall of the water spraying sleeve, and are evenly distributed in an annular shape on the inner wall of the water spraying sleeve, a water inlet pipe is fixedly connected to the outer wall of the water spraying sleeve, a drain pipe is fixedly connected to one side of the water tank, and an auxiliary cooling mechanism is arranged inside the water tank; The auxiliary cooling mechanism includes an auxiliary moving unit, which is arranged inside the water tank and below the water spray jacket, and is used to drive the water spray jacket to reciprocate linearly; The auxiliary cooling mechanism also includes an auxiliary shaking unit, which is arranged on one side of the auxiliary moving unit, and is used in conjunction with the auxiliary moving unit, and is used to drive the water spray sleeve to shake; A steam exhaust mechanism is installed on the bracket. The steam exhaust mechanism is used in conjunction with the auxiliary moving unit and is used to exhaust steam.

[0007] Preferably, the auxiliary mobile unit includes a support rod, which is fixedly mounted on the inner wall of the water tank, a guide rail is fixedly mounted on the top of the support rod, a support sleeve is slidably mounted on the guide rail, a shell is fixedly mounted on one side of the support sleeve, a motor is fixedly mounted in the shell, the motor output shaft extends to the inner cavity of the support sleeve and is connected to the first gear, a connecting frame is rotatably connected to the support sleeve, a telescopic rod is fixedly mounted on the top of the connecting frame, the upper end of the telescopic rod is slidably connected to the water spray sleeve, the guide rail is a hollow ring structure, and the inner ring of the guide rail is provided with a tooth groove for cooperating with the first gear.

[0008] Preferably, a slider is fixedly installed on the upper end of the telescopic rod, a positioning block is fixedly installed on the bottom surface of the water spray sleeve, the slider is slidably installed in the inner cavity of the positioning block, a guide block is fixedly installed in the axial direction of the outer wall of the water spray sleeve, and a guide groove is opened on the inner wall of the bracket to be slidably connected to the guide block.

[0009] Preferably, the inner wall of the support sleeve is rotatably connected to two pulleys, the outer circumference of the pulleys is concave, and the pulleys fit the surface of the guide rail.

[0010] Preferably, the auxiliary shaking unit includes a mounting rod, which is fixedly mounted on the inner wall of the water tank, one end of the mounting rod is fixedly mounted with a box body, one side of the box body is rotatably connected to a second gear, one side of the second gear is fixedly mounted with a transmission crankshaft, one end of the transmission crankshaft passes through the interior of the box body and is rotatably connected to the inner wall of the box body, six connecting rods are sleeved on the transmission crankshaft, one end of the connecting rod is rotatably connected to a lifting block, a movable plate is slidably mounted on the inner wall of the box body, a lifting rod is fixedly mounted on the upper part of the movable plate, a matching block used in conjunction with the lifting rod is fixedly mounted on the outer wall of the water spray sleeve, the second gear is meshingly connected to a tooth plate, a slide plate is fixedly mounted on the bottom of the tooth plate, and the slide plate is slidably mounted on one side of the guide rail.

[0011] Preferably, a bearing is fixedly installed on the inner wall of the box body, the bearing is connected to one end of the transmission crankshaft, a fixed shaft is fixedly installed on the bottom of the lifting block, the connecting rod is rotatably connected to the lifting block through the fixed shaft, sliding blocks are fixedly installed on both ends of the movable plate, and sliding grooves cooperating with the sliding blocks are opened on both sides of the inner wall of the box body.

[0012] Preferably, a push rod is fixedly installed on one side of the connecting frame, a movable groove cooperating with the push rod is opened on one side of the skateboard, two groups of symmetrically arranged T-shaped rods are fixedly installed on one side of the skateboard, and the number of T-shaped rods in each group is two, and a T-shaped slot cooperating with the T-shaped rod is opened on one side of the guide rail, and the number of T-shaped slots is two.

[0013] Preferably, a strong spring is fixedly installed on one side of the slider, and the end of the strong spring away from the slider is fixedly installed on the inner wall of the positioning block. Strong magnets are fixedly installed on one side of the positioning block and the slider, and the two strong magnets are respectively close to the two ends of the strong spring, and the opposite surfaces of the two strong magnets are the same poles.

[0014] Preferably, the steam exhaust mechanism includes a fixed plate, which is rotatably connected to the bracket, a fan is fixedly installed on the fixed plate, a support plate is fixedly installed on the upper part of the fixed plate, an extrusion block is slidably installed in the support plate, an extrusion groove matching the extrusion block is opened on the upper part of the support plate, one side of the extrusion block contacts the inner wall of the extrusion groove, the bottom of the extrusion block and the inner wall of the extrusion groove are both arranged to be inclined, an extrusion rod is fixedly installed on the upper part of the extrusion block, and the end of the extrusion rod away from the extrusion block is fixedly connected to the outer wall of the water spray sleeve.

[0015] Preferably, damping sleeves are fixedly installed on both sides of the fixed plate, a positioning rod is rotatably connected inside the damping sleeve, and one end of the positioning rod away from the damping sleeve is fixedly connected to the bracket.

[0016] The beneficial effects of the present invention are: The auxiliary moving unit in the present invention moves the water spray sleeve during the movement of the metal rod, spraying water on the surface of the metal rod for multiple times to increase the cooling effect; The present invention provides an auxiliary shaking unit to make the water spray sleeve reciprocatingly rotate. The water spray sleeve can also reciprocate and rotate during the movement. The water column of the spray head realizes an S-shaped moving trajectory. During the quenching process of the metal rod, the water column can be evenly sprayed on the metal rod, so that the water flow sprayed on each part of the surface of the metal rod is consistent, further ensuring the cooling effect. The present invention provides a steam exhaust mechanism to quickly exhaust water vapor generated by high temperature, thereby ensuring air flow in the water spray cooling area, thereby improving the cooling effect and ensuring the stability of the metal rod during cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the coordination structure of the auxiliary cooling mechanism and the steam exhaust mechanism in the present invention; Figure 3 It is a schematic diagram of the coordination structure of the auxiliary moving unit and the auxiliary shaking unit in the present invention; Figure 4 It is a structural schematic diagram of the auxiliary mobile unit in the present invention; Figure 5 for Figure 4 A partial enlarged view of the middle A; Figure 6 for Figure 4 A partial enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the connection between the water tank and the support rod in the present invention; Figure 8 It is a schematic diagram of the connection between the housing and the motor in the present invention; Fig. 9 It is a structural schematic diagram of the auxiliary shaking unit in the present invention; Fig.10 Schematic diagram of the operating structure of the auxiliary shaking unit in the present invention; Fig.11 It is a structural schematic diagram of the steam exhaust mechanism in the present invention; Fig.12 It is a schematic diagram of the structure of the extrusion block in the extrusion groove of the present invention; Fig.13 It is a schematic diagram of the cooperation between the positioning block and the sliding block in the present invention.

[0018] In the figure: 1. main mechanism; 11. conveyor; 12. water tank; 13. bracket; 14. water spray sleeve; 15. drain pipe; 16. water inlet pipe; 17. nozzle; 2. auxiliary cooling mechanism; 21. auxiliary moving unit; 2101. guide block; 2102. guide groove; 2103. support rod; 2104. guide rail; 2105. support sleeve; 2106. connecting frame; 2107. shell; 2108. motor; 2109. first gear; 2110. pulley; 2111. telescopic rod; 2112. push rod; 2113. positioning block; 2114. slider; 22. auxiliary shaking unit; 2201. mounting rod; 2202. box; 2203. Matching block; 2204, tooth plate; 2205, slide plate; 2206, T-bar; 2207, T-slot; 2208, second gear; 2209, strong spring; 2210, strong magnet; 2211, bearing; 2212, transmission crankshaft; 2213, connecting rod; 2214, movable plate; 2215, slide groove; 2216, movable groove; 2217, fixed shaft; 2218, lifting block; 2219, sliding block; 2220, lifting rod; 3, steam discharge mechanism; 301, extrusion rod; 302, extrusion block; 303, support plate; 304, extrusion groove; 305, fan; 306, fixed plate; 307, positioning rod; 308, damping sleeve. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-13A high hardening and crack prevention external spraying device comprises a main body mechanism 1, the main body mechanism 1 comprises a conveyor 11, a water tank 12 is installed inside the conveyor 11, a bracket 13 is fixedly installed on the upper part of the water tank 12, a water spraying sleeve 14 is slidably installed on the inner wall of the bracket 13, a plurality of spray heads 17 are fixedly connected to the inner wall of the water spraying sleeve 14, and are evenly distributed in an annular shape on the inner wall of the water spraying sleeve 14, a water inlet pipe 16 is fixedly connected to the outer wall of the water spraying sleeve 14, a drain pipe 15 is fixedly connected to one side of the water tank 12, and an auxiliary cooling mechanism 2 is arranged inside the water tank 12; The auxiliary cooling mechanism 2 includes an auxiliary moving unit 21, which is disposed inside the water tank 12 and below the water spray jacket 14. The auxiliary moving unit 21 is used to drive the water spray jacket 14 to perform linear reciprocating motion.

[0021] The auxiliary mobile unit 21 includes a support rod 2103, which is fixedly mounted on the inner wall of the water tank 12. A guide rail 2104 is fixedly mounted on the top of the support rod 2103, and a support sleeve 2105 is slidably mounted on the guide rail 2104. A shell 2107 is fixedly mounted on one side of the support sleeve 2105, and a motor 2108 is fixedly mounted in the shell 2107. The output shaft of the motor 2108 extends to the inner cavity of the support sleeve 2105 and is connected to the first gear 2109. A connecting frame 2106 is rotatably connected to the support sleeve 2105, and a telescopic rod 2111 is fixedly mounted on the top of the connecting frame 2106. The upper end of the telescopic rod 2111 is slidably connected to the water spray sleeve 14. The guide rail 2104 is a hollow annular structure, and the inner ring of the guide rail 2104 is provided with a tooth groove used in conjunction with the first gear 2109. A slider 2114 is fixedly installed on the upper end of the telescopic rod 2111, a positioning block 2113 is fixedly installed on the bottom surface of the water spray sleeve 14, the slider 2114 is slidably installed in the inner cavity of the positioning block 2113, a guide block 2101 is fixedly installed in the axial direction of the outer wall of the water spray sleeve 14, and a guide groove 2102 slidably connected to the guide block 2101 is provided on the inner wall of the bracket 13; through the coordinated use of the slider 2114 and the positioning block 2113, the connecting frame 2106 drives the water spray sleeve 14 to move during the movement, and at the same time, the water spray sleeve 14 has enough rotation space; through the coordinated use of the guide groove 2102 and the guide block 2101, the movement of the water spray sleeve 14 is more stable, avoiding the phenomenon of deflection; The inner wall of the support sleeve 2105 is rotatably connected to two pulleys 2110, the outer circumference of the pulley 2110 is concave, and the outer circumference of the pulley 2110 fits the surface of the guide rail 2104; the pulley 2110 prevents the support sleeve 2105 from detaching when moving on the guide rail 2104, ensuring the stability of the water spray sleeve 14 when moving.

[0022] The conveyor 11 slowly conveys the high-temperature heated metal rod through the water spray sleeve 14. When the metal rod slowly passes through the water spray sleeve 14, the motor 2108 is started, and the motor 2108 drives the first gear 2109 to rotate. The first gear 2109 cooperates with the tooth groove on the inner ring of the guide rail 2104 and drives the support sleeve 2105 to move. The support sleeve 2105 drives the connecting frame 2106 to move, and the connecting frame 2106 drives the telescopic rod 2111 to move. The telescopic rod 2111 drives the slider 2114 to move. The slider 2114 drives the positioning block 2113 to move. The positioning block 2113 drives the water spray sleeve 14 to move. The water spray sleeve 14 drives the guide block 2101 to move in the inner cavity of the guide groove 2102. The sleeve 2105 moves to the turning point of the guide rail 2104, rotates through the rotating shaft between the support sleeve 2105 and the connecting frame 2106, and then moves downward. During the downward movement of the support sleeve 2105, the telescopic rod 2111 will extend to adapt to the position of the support sleeve 2105, so that the support sleeve 2105 moves on the trajectory of the guide rail 2104, and the water spray sleeve 14 makes a reciprocating linear motion. During the movement of the water spray sleeve 14, the external water source is transported to the inner cavity of the water spray sleeve 14 through the water inlet pipe 16, and then sprayed out through the nozzle 17. The nozzle 17 is inclined in the direction of conveying the metal rod to prevent water from entering the inside of the metal rod. The water is sprayed on the surface of the metal rod, and multiple water spray cooling is performed to improve the quenching effect.

[0023] Further definition of the auxiliary cooling mechanism 2 of the present invention, the auxiliary cooling mechanism 2 also includes an auxiliary shaking unit 22, the auxiliary shaking unit 22 is arranged on one side of the auxiliary moving unit 21, the auxiliary shaking unit 22 is used in conjunction with the auxiliary moving unit 21, and the auxiliary shaking unit 22 is used to drive the water spray jacket 14 to shake; The auxiliary shaking unit 22 includes a mounting rod 2201, which is fixedly mounted on the inner wall of the water tank 12, one end of the mounting rod 2201 is fixedly mounted with a box body 2202, one side of the box body 2202 is rotatably connected with a second gear 2208, one side of the second gear 2208 is fixedly mounted with a transmission crankshaft 2212, one end of the transmission crankshaft 2212 penetrates into the box body 2202 and is rotatably connected to the inner wall of the box body 2202, six connecting rods 2213 are respectively sleeved on the eccentric shaft of the transmission crankshaft 2212, and one end of the connecting rod 2213 away from the transmission crankshaft 2212 is rotatably connected with a jacking Block 2218, a movable plate 2214 is slidably mounted on the inner wall of the box body 2202, a lifting rod 2220 is fixedly mounted on the upper part of the movable plate 2214, a matching block 2203 used in conjunction with the lifting rod 2220 is fixedly mounted on the outer wall of the water spray sleeve 14, a second gear 2208 is meshedly connected with the tooth plate 2204, a slide plate 2205 is fixedly mounted on the bottom of the tooth plate 2204, and the slide plate 2205 is slidably mounted on one side of the guide rail 2104; the auxiliary shaking unit 22 enables the water spray sleeve 14 to perform reciprocating rotation during the movement, and the water column of the nozzle 17 realizes an S-shaped moving trajectory, thereby improving the cooling effect; A bearing 2211 is fixedly installed on the inner wall of the box body 2202, and the bearing 2211 is connected to one end of the transmission rod 2212. A fixed shaft 2217 is fixedly installed on the bottom of the lifting block 2218. The connecting rod 2213 is rotatably connected to the lifting block 2218 through the fixed shaft 2217. Sliding blocks 2219 are fixedly installed on both ends of the movable plate 2214. Slide grooves 2215 cooperating with the sliding blocks 2219 are provided on both sides of the inner wall of the box body 2202. The sliding blocks 2219 and the slide grooves 2215 are used in combination to prevent the movable plate 2214 from being deflected during the movement, thereby driving the lifting rod 2220 to move stably. A push rod 2112 is fixedly installed on one side of the connecting frame 2106, and a movable groove 2216 cooperating with the push rod 2112 is provided on one side of the slide plate 2205. Two groups of symmetrically arranged T-shaped rods 2206 are fixedly installed on one side of the slide plate 2205, and each group of T-shaped rods 2206 has two T-shaped slots 2207 cooperating with the T-shaped rods 2206 are provided on one side of the guide rail 2104, and the number of the T-shaped slots 2207 is two; the push rod 2112 and the movable slot 2216 are used in combination to enable the slide plate 2205 to move through the connecting frame 2106, and the movable slot 2216 is used to prevent the push rod 2112 and the slide plate 2205 from getting stuck when the support sleeve 2105 rotates; the T-shaped rod 2206 and the T-shaped slot 2207 are used in combination to make the slide plate 2205 more stable during the movement process, and provide a moving track for the slide plate 2205; A strong spring 2209 is fixedly installed on one side of the slider 2114, and one end of the strong spring 2209 away from the slider 2114 is fixedly installed on the inner wall of the positioning block 2113. Strong magnets 2210 are fixedly installed on one side of the positioning block 2113 and the slider 2114, and the two strong magnets 2210 are respectively close to the two ends of the strong spring 2209, and the opposite surfaces of the two strong magnets 2210 are the same poles; the strong spring 2209 and the strong magnet 2210 are used together, so that the water spray sleeve 14 can be quickly reset for the next rotation after rotation.

[0024] When the connecting frame 2106 moves, the push rod 2112 slides in the movable groove 2216 and drives the slide plate 2205 to move, the slide plate 2205 drives the T-bar 2206 to move in the T-slot 2207, the slide plate 2205 drives the tooth plate 2204 to move, the tooth plate 2204 drives the second gear 2208 to rotate, the second gear 2208 drives the transmission crankshaft 2212 to rotate, the transmission crankshaft 2212 drives the jacking block 2218 to move through the connecting rod 2213 and the fixed shaft 2217, the jacking block 2218 drives the movable plate 2214 to move, the movable plate 2214 drives the jacking rod 2220 to move, the jacking rod 2220 squeezes the matching block 2203, the matching block 2203 drives the water spray sleeve 14 to rotate, and the transmission crankshaft 2212 rotates. During the process, the six lifting rods 2220 are driven to move up and down in sequence, and the second gear 2208 rotates one circle to drive the six lifting blocks 2218 to lift once, thereby increasing the frequency of lifting the water spray sleeve 14. During the rotation of the water spray sleeve 14, the positioning block 2113 is driven to move, and the positioning block 2113 squeezes the strong spring 2209. At the same time, the positioning block 2113 drives the strong magnet 2210 to move, and the two strong magnets 2210 repel each other. When one of the lifting blocks 2218 is separated from the lifting of the movable plate 2214, the repulsive force between the two strong magnets 2210 and the reaction force of the strong spring 2209 cause the water spray sleeve 14 to quickly reset, and then the other lifting block 2218 is lifted, and the above steps are repeated, thereby causing the water spray sleeve 14 to rotate back and forth.

[0025] The bracket 13 is provided with a steam exhaust mechanism 3, which is used in conjunction with the auxiliary mobile unit 21 and is used to exhaust steam; The steam exhaust mechanism 3 includes a fixed plate 306, which is rotatably connected to the bracket 13, and a fan 305 is fixedly installed on the fixed plate 306. A support plate 303 is fixedly installed on the upper part of the fixed plate 306, and an extrusion block 302 is slidably installed in the support plate 303. An extrusion groove 304 cooperating with the extrusion block 302 is opened on the upper part of the support plate 303. One side of the extrusion block 302 contacts the inner wall of the extrusion groove 304, and the bottom of the extrusion block 302 and the inner wall of the extrusion groove 304 are both set to be inclined surfaces. An extrusion rod 301 is fixedly installed on the upper part of the extrusion block 302, and one end of the extrusion rod 301 away from the extrusion block 302 is fixedly connected to the outer wall of the water spray sleeve 14; the fan 305 sprays water around the metal rod to quickly discharge the water vapor generated by the high temperature, thereby ensuring the air flow in the water spray cooling area, improving the cooling effect, and ensuring the stability of the metal rod when cooling; Damping sleeves 308 are fixedly installed on both sides of the fixed plate 306, and a positioning rod 307 is rotatably connected inside the damping sleeve 308. The end of the positioning rod 307 away from the damping sleeve 308 is fixedly connected to the bracket 13; the damping sleeve 308 and the positioning rod 307 are used in conjunction with each other to make the fixed plate 306 and the fan 305 more stable during rotation.

[0026] The extrusion rod 301 is driven to move during the movement of the water spray sleeve 14, and the extrusion rod 301 drives the extrusion block 302 to move in the extrusion groove 304. The extrusion block 302 cooperates with the extrusion groove 304 and drives the fixed plate 306 to rotate. Since only one side of the extrusion block 302 is in contact with the inner cavity of the extrusion groove 304, and there is a large space between the other side and the extrusion groove 304, the water spray sleeve 14 will not get stuck during the movement. When the fixed plate 306 rotates, it drives the damping sleeve 308 to rotate on the positioning rod 307. After the fixed plate 306 is squeezed to a certain angle by the extrusion block 302, the damping sleeve 308 prevents the fixed plate 306 from continuing to flip. At the same time, the fixed plate 306 drives the fan 305 to rotate, so that the fan 305 rotates back and forth. At this time, the fan 305 is started, and the fan 305 sprays water on the metal rod and the water vapor generated by the high temperature is quickly discharged, ensuring the air flow in the water spray cooling area, improving the cooling effect, and ensuring the stability of the metal rod during cooling.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] 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 high hardening and crack prevention external spraying device, comprising a main body mechanism (1), characterized in that: The main mechanism (1) comprises a conveyor (11), a water tank (12) is installed inside the conveyor (11), a bracket (13) is fixedly installed on the upper part of the water tank (12), a water spray sleeve (14) is slidably installed on the inner wall of the bracket (13), a plurality of spray heads (17) are fixedly connected to the inner wall of the water spray sleeve (14) and are evenly distributed in an annular shape on the inner wall of the water spray sleeve (14), a water inlet pipe (16) is fixedly connected to the outer wall of the water spray sleeve (14), a drainage pipe (15) is fixedly connected to one side of the water tank (12), and an auxiliary cooling mechanism (2) is arranged inside the water tank (12); The auxiliary cooling mechanism (2) comprises an auxiliary moving unit (21), the auxiliary moving unit (21) being arranged inside the water tank (12), the auxiliary moving unit (21) being located below the water spray jacket (14), and the auxiliary moving unit (21) being used to drive the water spray jacket (14) to perform linear reciprocating motion; The auxiliary cooling mechanism (2) further comprises an auxiliary shaking unit (22), the auxiliary shaking unit (22) being arranged on one side of the auxiliary moving unit (21), the auxiliary shaking unit (22) being used in conjunction with the auxiliary moving unit (21), and the auxiliary shaking unit (22) being used to drive the water spray jacket (14) to shake; A steam exhaust mechanism (3) is installed on the bracket (13). The steam exhaust mechanism (3) is used in conjunction with the auxiliary moving unit (21). The steam exhaust mechanism (3) is used to exhaust steam.

2. A high hardening and crack prevention external spraying device according to claim 1, characterized in that: The auxiliary moving unit (21) comprises a support rod (2103), the support rod (2103) being fixedly mounted on the inner wall of the water tank (12), a guide rail (2104) being fixedly mounted on the top of the support rod (2103), a support sleeve (2105) being slidably mounted on the guide rail (2104), a housing (2107) being fixedly mounted on one side of the support sleeve (2105), a motor (2108) being fixedly mounted in the housing (2107), and the motor (2108) outputting The shaft extends to the inner cavity of the support sleeve (2105) and is connected to the first gear (2109). The support sleeve (2105) is rotatably connected to a connecting frame (2106). A telescopic rod (2111) is fixedly installed on the top of the connecting frame (2106). The upper end of the telescopic rod (2111) is slidably connected to the water spray sleeve (14). The guide rail (2104) is a hollow annular structure. The inner ring of the guide rail (2104) is provided with a tooth groove for use with the first gear (2109).

3. A high hardening and crack prevention external spraying device according to claim 2, characterized in that: A slider (2114) is fixedly mounted on the upper end of the telescopic rod (2111), a positioning block (2113) is fixedly mounted on the bottom surface of the water spray sleeve (14), the slider (2114) is slidably mounted in the inner cavity of the positioning block (2113), a guide block (2101) is fixedly mounted on the outer wall of the water spray sleeve (14) in the axial direction, and a guide groove (2102) slidably connected to the guide block (2101) is provided on the inner wall of the bracket (13).

4. A high hardening and crack prevention external spraying device according to claim 2, characterized in that: The inner wall of the support sleeve (2105) is rotatably connected to two pulleys (2110), the outer circumference of the pulleys (2110) is concave, and the pulleys (2110) are in contact with the surface of the guide rail (2104).

5. The high hardening and crack prevention external spraying device according to claim 2, characterized in that: The auxiliary shaking unit (22) comprises a mounting rod (2201), the mounting rod (2201) being fixedly mounted on the inner wall of the water tank (12), one end of the mounting rod (2201) being fixedly mounted with a box body (2202), one side of the box body (2202) being rotatably connected to a second gear (2208), one side of the second gear (2208) being fixedly mounted with a transmission crankshaft (2212), one end of the transmission crankshaft (2212) passing through the interior of the box body (2202) and being rotatably connected to the inner wall of the box body (2202), and six connecting rods (221 3), one end of the connecting rod (2213) is rotatably connected to a lifting block (2218), a movable plate (2214) is slidably mounted on the inner wall of the box body (2202), a lifting rod (2220) is fixedly mounted on the upper part of the movable plate (2214), a matching block (2203) used in conjunction with the lifting rod (2220) is fixedly mounted on the outer wall of the water spray sleeve (14), the second gear (2208) is meshedly connected to the tooth plate (2204), a slide plate (2205) is fixedly mounted on the bottom of the tooth plate (2204), and the slide plate (2205) is slidably mounted on one side of the guide rail (2104).

6. A high hardening and crack prevention external spraying device according to claim 5, characterized in that: A bearing (2211) is fixedly installed on the inner wall of the box body (2202), and the bearing (2211) is connected to one end of the transmission crankshaft (2212). A fixed shaft (2217) is fixedly installed on the bottom of the lifting block (2218). The connecting rod (2213) is rotatably connected to the lifting block (2218) through the fixed shaft (2217). Sliding blocks (2219) are fixedly installed on both ends of the movable plate (2214), and sliding grooves (2215) that cooperate with the sliding blocks (2219) are opened on both sides of the inner wall of the box body (2202).

7. The high hardening and crack prevention external spraying device according to claim 5, characterized in that: A push rod (2112) is fixedly mounted on one side of the connecting frame (2106); a movable groove (2216) cooperating with the push rod (2112) is provided on one side of the slide plate (2205); two groups of symmetrically arranged T-shaped rods (2206) are fixedly mounted on one side of the slide plate (2205); each group of T-shaped rods (2206) has two T-shaped grooves (2207) cooperating with the T-shaped rods (2206) is provided on one side of the guide rail (2104); the number of the T-shaped grooves (2207) is two.

8. The high hardening and crack prevention external spraying device according to claim 3, characterized in that: A strong spring (2209) is fixedly mounted on one side of the slider (2114); one end of the strong spring (2209) away from the slider (2114) is fixedly mounted on the inner wall of the positioning block (2113); strong magnets (2210) are fixedly mounted on one side of the positioning block (2113) and the slider (2114); and the two strong magnets (2210) are respectively close to the two ends of the strong spring (2209), and the opposite surfaces of the two strong magnets (2210) are of the same pole.

9. The high hardening and crack prevention external spraying device according to claim 1, characterized in that: The steam exhaust mechanism (3) comprises a fixed plate (306), the fixed plate (306) being rotatably connected to the bracket (13), a fan (305) being fixedly mounted on the fixed plate (306), a support plate (303) being fixedly mounted on the upper part of the fixed plate (306), an extrusion block (302) being slidably mounted inside the support plate (303), an extrusion groove (304) cooperating with the extrusion block (302) being provided on the upper part of the support plate (303), one side of the extrusion block (302) being in contact with the inner wall of the extrusion groove (304), the bottom of the extrusion block (302) and the inner wall of the extrusion groove (304) being both arranged to form an inclined surface, an extrusion rod (301) being fixedly mounted on the upper part of the extrusion block (302), and one end of the extrusion rod (301) away from the extrusion block (302) being fixedly connected to the outer wall of the water spray sleeve (14).

10. A high hardening and crack prevention external spraying device according to claim 9, characterized in that: A damping rotating sleeve (308) is fixedly mounted on both sides of the fixed plate (306), a positioning rod (307) is rotatably connected inside the damping rotating sleeve (308), and one end of the positioning rod (307) away from the damping rotating sleeve (308) is fixedly connected to the bracket (13).

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