Four-side quenching device for toothed rail and quenching method of four-side quenching device

Abstract

The invention relates to the technical field of heat treatment, and discloses a four-side quenching device for a rack rail and a quenching method.The four-side quenching device comprises a rack, a conveying mechanism and a quenching mechanism, the conveying mechanism comprises a conveying trolley and a driving mechanism for driving the conveying trolley to move, and a rack rail containing frame is fixed to the upper portion of the conveying trolley; the quenching mechanism comprises a heating assembly and a spraying assembly, the heating assembly comprises an electromagnetic inductor, the electromagnetic inductor is installed through an inductor installation frame so that the electromagnetic inductor and the rack can be kept relatively fixed, and in the moving direction of the conveying trolley, the electromagnetic inductor is provided with four edges for heating the four faces of the toothed rail at the same time. According to the four-side quenching device disclosed by the invention, a two-side quenching inductor is changed into a four-side simultaneous quenching inductor, so that the quenching efficiency is obviously improved, meanwhile, the stress problem caused by heating for several times is also solved, and the production efficiency of the toothed rail is improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat treatment, and in particular to a four-sided quenching device for a rack and a quenching method thereof. Background Art

[0002] The rack rail is a component of the fully-mechanized scraper. It is located on the Yuanbao seat on the baffle groove of the fully-mechanized scraper and is the walking track of the coal mining machine. The rack rail is the main component of the coal mining conveyor and is also a vulnerable part. When the rack rail is in normal use, the teeth and sides of the rack rail will rub against the gears of the coal mining machine, causing severe wear. In the gear production process, quenching is an indispensable process. Quenching can give the rack rail a higher surface hardness and increase the service life of the rack rail.

[0003] At present, the quenching of the rack is usually completed quickly by heating with a high-frequency coil. However, the existing rack quenching device has a heating coil in the shape of a "┓" shape, and at least two operations are required to complete the quenching of the rack. Not only is the efficiency low, but the loss of electric energy is also large. In addition, the processing technology of quenching in two steps is also prone to stress problems. Summary of the invention

[0004] The present invention aims to provide a four-side quenching device for a rack and a quenching method thereof, so as to solve the problems of low quenching efficiency and high energy consumption of existing quenching equipment.

[0005] The present invention is achieved through the following technical solutions:

[0006] On the one hand, a four-sided quenching device for a rack is provided, comprising a frame, a conveying mechanism and a quenching mechanism, wherein the conveying mechanism comprises a conveying trolley and a driving mechanism for driving the conveying trolley to move, a rack placing frame is fixed above the conveying trolley, the quenching mechanism comprises a heating component and a spray component, the heating component comprises an electromagnetic inductor, the electromagnetic inductor is installed through an inductor mounting frame so as to be relatively fixed with the frame, in the moving direction of the conveying trolley, the electromagnetic inductor is provided with four sides for heating the four sides of the rack at the same time, in this direction, the electromagnetic inductor is a square frame as a whole and the square frame A notch is opened at the bottom of the frame, through which the upper end of the rack is located in the electromagnetic inductor in the direction of movement of the conveying trolley, and the lower end of the rack is fixed to the conveying trolley outside the frame of the electromagnetic inductor. The spray assembly is provided on both sides of the heating assembly, and the spray assembly includes a cooling sprayer, and the cooling sprayer includes four spray edges, which spray the four sides of the rack respectively. In the direction of movement of the conveying trolley, the cooling sprayer has the same shape characteristics as the electromagnetic inductor to facilitate the movement of the rack.

[0007] In a possible design, the conveying mechanism also includes two parallel guide rails fixed on the top of the frame, the conveying trolley travels on the guide rails, the top of the guide rails is conical, the conveying trolley also includes wheels and a frame, the wheels are rotatably arranged on the frame, the placement rack mounting platform is fixed on the frame, and the wheels are provided with grooves that cooperate with the guide rails.

[0008] In a possible design, the driving mechanism includes a transmission screw and a driving motor, the motor body of the driving motor is fixed to the frame, the motor shaft of the driving motor is fixed to one end of the transmission screw, and the other end of the transmission screw is rotatably matched with the frame, and a nut seat is also provided on the transmission screw, which is threadably matched with the transmission screw, and the nut seat is also fixed on the mounting table of the placement rack, and the end of the transmission screw away from the driving motor is rotatably matched with the bearing seat, and the bearing seat is fixed to the frame through the mounting frame.

[0009] In a possible design, a placement rack mounting platform is fixedly provided at both ends of the conveying trolley, and a rack placement rack is fixed on each placement rack mounting platform. Furthermore, the placement rack mounting platform is fixed on the conveying trolley in a detachable manner, and the installation distance between the two placement rack mounting platforms is adjustable in the movement direction of the conveying trolley.

[0010] In a possible design, the quenching mechanism is fixed as a whole on the fixing frame, the fixing frame is fixed to the frame, a mounting beam is fixedly provided on the top of the fixing frame, the inductor mounting frame is fixed on the mounting beam, and a plurality of spray holes are provided on the inner wall of the cooling sprayer. To prevent the liquid sprayed from splashing onto the inner side of the electromagnetic inductor and affecting the heating process, the surface on which the spray holes are provided is an inclined surface, which makes the water column sprayed from each spray hole obliquely away from the side of the electromagnetic inductor.

[0011] In a possible design, a water inlet pipe head is fixed on the cooling sprayer, and the water inlet pipe head is connected to the inside of the cooling sprayer. The water inlet pipe head is used to connect to an external water pipe, and the external water pipe is connected to an electric pump. A recovery trough and a water tank are provided below the guide rail. The recovery trough is used to recover the cooling liquid sprayed from the cooling sprayer. The recovery trough is located below the cooling sprayer. Clean spray water is stored in the water tank, and the water tank is connected to the electric pump through a water pipe.

[0012] In a possible design, it also includes a quenching liquid recovery system, which includes a splash-proof deflector. Two splash-proof deflectors are provided at both ends of the electromagnetic inductor, and the top of each splash-proof deflector is fixed to the mounting beam. The cooling sprayer is fixed in each splash-proof deflector. In each splash-proof deflector, the cooling sprayer is fixed at one end of the splash-proof deflector close to the electromagnetic inductor.

[0013] In one possible design, the bottom of the splash guard includes a first inclined plate and a second inclined plate of different heights, wherein the first inclined plate is higher than the second inclined plate, and when observed from the movement direction of the conveying trolley, the rack is in a Z shape, and in the Z-shaped structure of the rack, the inclined plate in the middle of the Z shape can slide between the first inclined plate and the second inclined plate.

[0014] In a possible design, the bottom of the second inclined plate is fixedly connected to one end of the guide plate, and a strip hole is also opened at the bottom of the second inclined plate. The quenching liquid on the inner side of the splash-proof deflector flows into the guide plate through the strip hole, and the other end of the guide plate is arranged directly above the diverter groove, and the diverter groove is fixedly installed on one side of the fixed frame through a bracket. The guide plate is an inclined surface, and the end of the guide plate close to the splash-proof deflector is higher than the end of the guide plate close to the diverter groove. A plurality of magnets are fixed under the guide plate, and a plurality of partitions are arranged in the recovery groove. The partitions in the recovery groove separate the recovery groove into a plurality of recovery grooves, and a plurality of notches are arranged at the bottom of the fixed frame.

[0015] On the other hand, a quenching method for a four-sided quenching device for a rack is provided, comprising the following steps:

[0016] S1. Adjust the position of the conveyor trolley so that the conveyor trolley completely moves out of the area below the quenching mechanism and then places the rail on the rack;

[0017] S2, start the quenching mechanism, and open the spray assembly located on the front side of the conveyor trolley in the quenching mechanism sensor mounting frame for spraying;

[0018] S3, control the driving motor to rotate, the driving motor drives the entire conveying trolley through the transmission screw, and the conveying trolley drives the rack to move toward the quenching mechanism, one end of the rack is first heated at the sensor mounting frame, and then sprayed at the cooling sprayer after heating to achieve rapid cooling and quenching;

[0019] S4. After the quenching of the entire rack is completed, the next rack is replaced, and at the same time, the cooling sprayer that is spraying water on one side of the sensor mounting frame is turned off, and the cooling sprayer on the other side of the sensor mounting frame is turned on, and then the quenching operation of the next rack is carried out.

[0020] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0021] The four-sided quenching device of the present invention changes the two-sided quenching sensor into a four-sided simultaneous quenching sensor, thereby significantly improving the quenching efficiency, and also solving the stress problem caused by heating in batches, thereby improving the production efficiency of the rack. When the rack is heated, the horizontal trolley on the frame is controlled by a stepper motor, and the reducer controls the moving speed of the rack, thereby controlling the heating time of the four sides of the rack, ensuring that the quenching hardness of the rack meets the technical requirements and solving the problem of uneven hardness. Spray cooling mechanisms are installed on both sides of the sensor of the device, and the heated rack slowly passes through the spray area for rapid cooling. After the entire rack is sent for heating and quenching by the horizontal trolley, the quenched rack is removed, and the next rack is replaced and installed on the horizontal trolley tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a rear view of the present invention;

[0025] Figure 3 For the present invention Figure 2 Sectional view at AA;

[0026] Figure 4 For the present invention Figure 2 The enlarged view of point B in the middle;

[0027] Figure 5 It is a structural schematic diagram of a quenching mechanism in an embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the cooling sprayer and the electromagnetic inductor in the present invention;

[0029] Figure 7 It is a structural schematic diagram of an electromagnetic inductor in an embodiment of the present invention;

[0030] Figure 8 It is a structural schematic diagram of a quenching liquid recovery system in an embodiment of the present invention;

[0031] Fig. 9 For the present invention Figure 8 Sectional view at CC.

[0032] The reference numerals represent: 1-frame, 2-guide rail, 3-transport trolley, 301-wheel, 302-frame, 303-mounting rack mounting table, 4-rack rail mounting rack, 5-transmission screw, 6-drive motor, 7-recovery trough, 8-fixed frame, 801-mounting beam, 9-water tank, 10-C-type water retaining bar steel, 11-cooling sprayer, 1101-water inlet pipe head, 1102-spray hole, 12-sensor mounting frame, 13-electromagnetic sensor, 14-bearing seat, 15-mounting frame, 16-splash-proof deflector, 1601-first inclined plate, 1602-second inclined plate, 1603-strip hole, 1604-first baffle bar, 1605-second baffle bar, 17-guide plate, 18-diversion trough. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0034] Embodiment 1, as Figures 1 to 9 As shown, this embodiment includes a frame 1, a conveying mechanism and a quenching mechanism, wherein the conveying mechanism includes a conveying trolley 3 and a driving mechanism for driving the conveying trolley 3 to move, and a rack placement rack 4 is fixed above the conveying trolley 3;

[0035] The quenching mechanism includes a heating component and a spray component, and the heating component includes an electromagnetic inductor 13. The electromagnetic inductor 13 is installed through an inductor mounting frame 12 so as to be relatively fixed to the frame 1. In the movement direction of the conveying trolley 3, the electromagnetic inductor 13 is provided with four sides for heating the four sides of the rack at the same time. In this direction, the electromagnetic inductor 13 is a square frame as a whole, and a notch is opened at the bottom of the square frame. Through the notch, in the movement direction of the conveying trolley 3, the upper end of the rack placing frame 4 is located in the electromagnetic inductor 13, and the lower end of the rack placing frame 4 is fixed to the conveying trolley 3 outside the square frame of the electromagnetic inductor 13, and the rack is placed on the upper end of the rack placing frame 4. The rack placing frame 4 can drive the rack to move to the inside of the electromagnetic inductor 13 to heat the rack;

[0036] The spray assembly is provided on both sides of the heating assembly, and the spray assembly includes a cooling sprayer 11. The cooling sprayer 11 includes four spray edges, and the four spray edges spray the four sides of the rack respectively. In the movement direction of the conveying trolley 3, the cooling sprayer 11 has the same shape characteristics as the electromagnetic inductor 13 to facilitate the movement of the rack placement rack 4.

[0037] A placement rack mounting platform 303 is fixedly provided at both ends of the conveying trolley 3, and a rack placement rack 4 is fixed on each of the placement rack mounting platforms 303. Furthermore, the placement rack mounting platform 303 is fixed on the conveying trolley 3 in a detachable manner. In the movement direction of the conveying trolley 3, the installation distance between the two placement rack mounting platforms 303 is adjustable, so that racks of different lengths can be placed conveniently.

[0038] Helpfully, reference Figure 7 The electromagnetic inductor 13 is formed by S-shaped winding of a square copper tube. The electromagnetic inductor 13 cooperates with the rack placement frame 4, which can not only enable the conveying trolley 3 carrying the rack to move unimpeded on the electromagnetic inductor 13, but also enable the electromagnetic inductor 13 to complete one-time heating of the four sides of the rack.

[0039] In this embodiment, the conveying mechanism also includes two parallel guide rails 2, the guide rails 2 are fixed on the top of the frame 1, the conveying trolley 3 walks on the guide rails 2, the top of the guide rails 2 is conical, and the conveying trolley 3 also includes wheels 301 and a frame 302, the wheels 301 are rotatably set on the frame 302, the placement rack mounting platform 303 is fixed on the frame 302, and the wheels 301 are provided with grooves that cooperate with the guide rails 2. The cooperation between the wheels 301 and the guide rails 2 can ensure that the conveying trolley 3 will only move in a single direction, thereby ensuring the stability of the direction of the conveying trolley 3 during operation.

[0040] In this embodiment, the driving mechanism includes a transmission screw 5 and a driving motor 6. The motor body of the driving motor 6 is fixed to the frame 1, the motor shaft of the driving motor 6 is fixed to one end of the transmission screw 5, and the other end of the transmission screw 5 is rotatably matched with the frame 1. The transmission screw 5 is also provided with a nut seat, which is threadedly matched with the transmission screw 5, and the nut seat is also fixed on the placement rack mounting table 303. When the conveying trolley 3 is driven, the transmission screw 5 is controlled to rotate by the driving motor 6. The rotation of the transmission screw 5 will drive the nut seat to move along the axial direction of the transmission screw 5, thereby driving the conveying trolley 3 to move. The driving motor 6 uses a reduction motor with a speed regulation function, such as a stepping motor with a reducer. By controlling the speed of the driving motor 6, the moving speed of the conveying trolley 3 can be controlled, thereby controlling the heating time of the rack, and further achieving the effect of controlling the heating temperature.

[0041] Advantageously, the quenching mechanism is fixedly mounted on the fixing frame 8 as a whole, the fixing frame 8 is fixed to the frame 1, a mounting crossbeam 801 is fixedly arranged on the top of the fixing frame 8, the inductor mounting frame 12 is fixed on the mounting crossbeam 801, a plurality of spray holes 1102 are opened on the inner wall of the cooling sprayer 11, and in order to prevent the liquid sprayed from splashing to the inner position of the electromagnetic inductor 13 during spraying and affecting the heating process, the surface provided with the spray holes 1102 is an inclined surface, which makes the surface of each spray hole 1102 The water column sprayed obliquely away from the side of the electromagnetic inductor 13 can prevent the splashing liquid from affecting the heating process of the rack rail. The cooling sprayer 11 is fixed on the mounting crossbeam 801. A water inlet pipe head 1101 is fixed on the cooling sprayer 11. The water inlet pipe head 1101 is connected to the inside of the cooling sprayer 11. The water inlet pipe head 1101 is used to connect with an external water pipe, and the external water pipe is connected to an electric pump. The electric pump is used to inject coolant into the cooling sprayer 11 to achieve a spraying effect.

[0042] Furthermore, a recovery trough 7 and a water tank 9 are provided below the guide rail 2. The recovery trough 7 is used to recover the cooling liquid sprayed from the cooling sprayer 11. The recovery trough 7 is located below the cooling sprayer 11. The water tank 9 contains clean spray water. The water tank 9 is connected to the electric pump through a water pipe.

[0043] Optionally, both ends of the square copper tube of the electromagnetic inductor 13 are respectively a water inlet and a water return port, and the water inlet and the water return port are respectively provided with a wiring copper plate connected to the power input line of the high-frequency quenching machine tool and an output line connecting copper plate connected to the power output line, and the inductor mounting frame 12 is horizontally arranged along the conveying direction of the horizontal trolley conveying mechanism.

[0044] Advantageously, lubricating oil is generally required to be applied between the transmission screw 5 and the nut seat to reduce the friction between the transmission screw 5 and the nut seat, so as to improve the stability of the transmission screw 5 when driven. The water sprayed by the cooling sprayer 11 during spraying can easily wash away the lubricating oil on the transmission screw 5. Therefore, a C-shaped water retaining bar 10 is fixedly provided on the conveying trolley 3. A part of the transmission screw 5 is located in the C-shaped water retaining bar 10. The C-shaped water retaining bar 10 can shield the transmission screw 5 to prevent the lubricating oil on the transmission screw 5 from being washed away by the water sprayed from the cooling sprayer 11.

[0045] In this embodiment, one end of the transmission screw 5 away from the driving motor 6 is rotatably matched with the bearing seat 14 , and the bearing seat 14 is fixed to the frame 1 through a mounting frame 15 .

[0046] Advantageously, the rack mounting platform 303 is in a bar shape, and a plurality of rack rail mounting racks 4 can be mounted on each rack mounting platform 303, and then the corresponding rack rails 4 are mounted on the mounting crossbeam 801, thereby completing the quenching operation of a plurality of rails at one time.

[0047] Embodiment 2. This embodiment is based on embodiment 1. During quenching, different quenching liquids are required as cooling media for different process requirements, and these quenching liquids should be recovered in different recovery boxes. Based on this, this embodiment further provides a quenching liquid recovery system, and the quenching liquid recovery system includes a splash-proof deflector 16. Two splash-proof deflectors 16 are provided at both ends of the electromagnetic inductor 13. The top of each splash-proof deflector 16 is fixed on the mounting beam 801. The cooling sprayer 11 is fixed in each splash-proof deflector 16. In each splash-proof deflector 16, the cooling sprayer 11 is fixed at one end of the splash-proof deflector 16 close to the electromagnetic inductor 13.

[0048] Furthermore, the bottom of the splash-proof air deflector 16 includes a first inclined plate 1601 and a second inclined plate 1602 of different heights, and the height of the first inclined plate 1601 is higher than that of the second inclined plate 1602. When observed from the movement direction of the conveying trolley 3, the rack 4 is in a "Z" shape. In the Z-shaped structure of the rack 4, the inclined plate in the middle of the Z shape can slide between the first inclined plate 1601 and the second inclined plate 1602, so that the rack 4 can move unhindered at the splash-proof air deflector 16.

[0049] Advantageously, the bottom of the second inclined plate 1602 is fixedly connected to one end of the guide plate 17, and a strip hole 1603 is also provided at the bottom of the second inclined plate 1602. The quenching liquid on the inner side of the splash-proof deflector 16 flows into the guide plate 17 through the strip hole 1603. The other end of the guide plate 17 is arranged directly above the diverter groove 18, and the diverter groove 18 is fixedly mounted on one side of the fixed frame 8 through a bracket. The guide plate 17 is an inclined surface, and one end of the guide plate 17 close to the splash-proof deflector 16 is higher than the other end of the guide plate 17 close to the diverter groove 18. The splash-proof deflector 16 blocks the quenching liquid sprayed from the cooling sprayer 11 to prevent the quenching liquid from splashing, and then gathers the sprayed quenching liquid. The quenching liquid in the splash-proof deflector 16 flows into the diverter groove 18 through the second inclined plate 1602 for diversion and collection for reuse.

[0050] Advantageously, a plurality of magnets are fixed below the guide plate 17. During quenching, a large amount of scrap iron filings are generated. When the quenching liquid flows from above the guide plate 17, the scrap iron filings in the quenching liquid can be adsorbed by the magnets, which can achieve a good filtering effect. A plurality of partitions are provided in the recovery tank 7. The partitions in the recovery tank 7 divide the recovery tank 7 into a plurality of recovery tanks 7. A plurality of notches are provided at the bottom of the fixed frame 8, each notch corresponding to a designated recovery tank 7. By opening the notch of the diversion tank 18, different types of quenching liquid can be recovered into the designated recovery tank 7 for recycling.

[0051] Furthermore, on the inner side of the splash-proof guide cover 16, a first baffle bar 1604 fixed on the second inclined plate 1602 is provided above the strip hole 1603, and a second baffle bar 1605 is fixed near the lower end of the first inclined plate 1601. The first baffle bar 1604 and the second inclined plate 1602 cooperate to form a first confluence groove, and the second baffle bar 1605 cooperates with the first inclined plate 1601 to form a second confluence groove. The quenching liquid sprayed on the inner wall of the splash-proof guide cover 16 will first converge in each confluence groove and then turn over the baffle bar. After the quenching liquid turns over the baffle bar, the flow rate of the quenching liquid at each location along the length direction of the baffle bar is uniform, and thus the flow rate at each location along the length direction of the baffle bar on the guide plate 17 is also uniform.

[0052] It should be noted that the multiple magnets below the guide plate 17 are fixed on a hard plate. The magnets are small boron magnets with strong magnetic force. The multiple neodymium iron boron magnets are evenly laid and fixed on the hard plate so that a uniform magnetic field is formed above the guide plate 17. The uniform magnetic field cooperates with the uniform flow rate at various locations on the guide plate 17 to fully remove the scrap iron filings in the quenching liquid. The hard plate and the guide plate 17 are detachably fixedly connected. When cleaning the scrap iron filings adsorbed on the guide plate 17, the hard plate can be removed to make the guide plate 17 lose its magnetism, thereby easily cleaning up the iron filings.

[0053] Embodiment 3: Based on Embodiment 1, this embodiment further provides a quenching method to improve the quenching efficiency of the rack, comprising the following steps:

[0054] S1. Adjust the position of the conveying trolley 3 so that the conveying trolley 3 completely moves out of the area below the quenching mechanism, and then place the rack on the rack placement rack 4;

[0055] S2, start the quenching mechanism, and open the spray assembly located on the front side of the running direction of the conveying trolley 3 in the quenching mechanism sensor mounting frame 12 for spraying;

[0056] S3, control the driving motor 6 to rotate, the driving motor 6 drives the entire conveying trolley 3 through the transmission screw 5, and the conveying trolley 3 then drives the rack to move toward the quenching mechanism, one end of the rack is first heated at the inductor mounting frame 12, and then sprayed at the cooling sprayer 11 after heating to achieve rapid cooling and quenching;

[0057] S4. After the quenching of the entire rack is completed, the next rack is replaced, and at the same time, the cooling sprayer 11 that is spraying water on one side of the sensor mounting frame 12 is turned off, and the cooling sprayer 11 on the other side of the sensor mounting frame 12 is turned on, and then the quenching operation of the next rack is carried out.

[0058] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A four-sided quenching device for a rack, comprising a frame (1), a transmission mechanism and a quenching mechanism, characterized in that: The conveying mechanism comprises a conveying trolley (3) and a driving mechanism for driving the conveying trolley (3) to move, and a rack placement frame (4) is fixed above the conveying trolley (3); The quenching mechanism comprises a heating component and a spray component, the heating component comprises an electromagnetic inductor (13), the electromagnetic inductor (13) is installed through an inductor mounting frame (12) so as to be relatively fixed with the frame (1), in the moving direction of the conveying trolley (3), the electromagnetic inductor (13) is provided with four sides for heating the four sides of the rack simultaneously, in this direction, the electromagnetic inductor (13) is a whole frame and a notch is opened at the bottom of the frame, through the notch, in the moving direction of the conveying trolley (3), the upper end of the rack placing frame (4) is located in the electromagnetic inductor (13), and the lower end of the rack placing frame (4) is fixed to the conveying trolley (3) outside the frame of the electromagnetic inductor (13); The spray assembly is provided on both sides of the heating assembly, and the spray assembly includes a cooling sprayer (11). The cooling sprayer (11) includes four spray edges, and the four spray edges spray the four sides of the rack respectively. In the movement direction of the conveying trolley (3), the cooling sprayer (11) has the same shape characteristics as the electromagnetic inductor (13) to facilitate the movement of the rack placement rack (4).

2. A four-sided quenching device for a rack rail according to claim 1, characterized in that: The conveying mechanism further comprises two mutually parallel guide rails (2), wherein the guide rails (2) are fixed on the top of the frame (1), and the conveying trolley (3) travels on the guide rails (2), wherein the top end of the guide rails (2) is conical, and the conveying trolley (3) further comprises wheels (301) and a frame (302), wherein the wheels (301) are rotatably arranged on the frame (302), a placement frame mounting platform (303) is fixed on the frame (302), and the wheels (301) are provided with grooves that cooperate with the guide rails (2).

3. A four-sided quenching device for a rack rail according to claim 1, characterized in that: The driving mechanism comprises a transmission screw (5) and a driving motor (6); a motor body of the driving motor (6) is fixed to the frame (1); a motor shaft of the driving motor (6) is fixed to one end of the transmission screw (5); the other end of the transmission screw (5) is rotationally engaged with the frame (1); a nut seat is also provided on the transmission screw (5); the nut seat is threadedly engaged with the transmission screw (5); and the nut seat is also fixed on a mounting platform (303) of a placement rack; one end of the transmission screw (5) away from the driving motor (6) is rotationally engaged with a bearing seat (14); and the bearing seat (14) is fixed to the frame (1) via a mounting rack (15).

4. A four-sided quenching device for a rack rail according to claim 2, characterized in that: A placement rack mounting platform (303) is fixedly provided at both ends of the conveying trolley (3), and a rack placement rack (4) is fixed on each of the placement rack mounting platforms (303). Furthermore, the placement rack mounting platform (303) is fixed on the conveying trolley (3) in a detachable manner, and the installation distance between the two placement rack mounting platforms (303) is adjustable in the movement direction of the conveying trolley (3).

5. The four-side quenching device for a rack rail according to claim 2, characterized in that: The quenching mechanism is fixedly mounted as a whole on a fixing frame (8), the fixing frame (8) and the frame (1) are kept fixed, a mounting crossbeam (801) is fixedly provided at the top of the fixing frame (8), the inductor mounting frame (12) is fixed on the mounting crossbeam (801), and a plurality of spray holes (1102) are provided on the inner wall of the cooling sprayer (11). In order to prevent the liquid sprayed during spraying from splashing onto the inner side of the electromagnetic inductor (13) and affecting the heating process, the surface on which the spray holes (1102) are provided is an inclined surface, and the inclined surface makes the water column sprayed from each spray hole (1102) obliquely away from the side of the electromagnetic inductor (13).

6. A four-side quenching device for a rack rail according to claim 5, characterized in that: A water inlet pipe head (1101) is fixed on the cooling sprayer (11), and the water inlet pipe head (1101) is connected to the inside of the cooling sprayer (11). The water inlet pipe head (1101) is used to be connected to an external water pipe, and the external water pipe is connected to an electric pump. A recovery trough (7) and a water tank (9) are provided below the guide rail (2). The recovery trough (7) is used to recover the cooling liquid sprayed from the cooling sprayer (11). The recovery trough (7) is located below the cooling sprayer (11). Clean spray water is stored in the water tank (9), and the water tank (9) is connected to the electric pump through a water pipe.

7. The four-side quenching device for a rack rail according to claim 1, characterized in that: It also includes a quenching liquid recovery system, which includes a splash-proof deflector (16). Two splash-proof deflectors (16) are provided at both ends of the electromagnetic inductor (13). The top of each splash-proof deflector (16) is fixed on the mounting crossbeam (801). The cooling sprayer (11) is fixed in each splash-proof deflector (16). In each splash-proof deflector (16), the cooling sprayer (11) is fixed at one end of the splash-proof deflector (16) close to the electromagnetic inductor (13).

8. A four-side quenching device for a rack rail according to claim 7, characterized in that: The bottom of the splash-proof deflector (16) comprises a first inclined plate (1601) and a second inclined plate (1602) of different heights, wherein the height of the first inclined plate (1601) is higher than that of the second inclined plate (1602). When observed from the moving direction of the conveying trolley (3), the rack rail placement frame (4) is in a "Z" shape. In the Z-shaped structure of the rack rail placement frame (4), the inclined plate in the middle of the Z shape can slide between the first inclined plate (1601) and the second inclined plate (1602).

9. A four-sided quenching device for a rack rail according to claim 8, characterized in that: The bottom of the second inclined plate (1602) is fixedly connected to one end of the guide plate (17), and a strip hole (1603) is also opened at the bottom of the second inclined plate (1602). The quenching liquid inside the splash-proof guide cover (16) flows into the guide plate (17) through the strip hole (1603). The other end of the guide plate (17) is arranged directly above the diverter groove (18), and the diverter groove (18) is fixedly mounted on the fixing frame (8) through a bracket. On one side of the guide plate (17), the guide plate (17) is an inclined surface, one end of the guide plate (17) close to the splash-proof guide cover (16) is higher than one end of the guide plate (17) close to the diversion groove (18), a plurality of magnets are fixed below the guide plate (17), a plurality of partitions are provided in the recovery groove (7), the partitions in the recovery groove (7) separate the recovery groove (7) into a plurality of recovery grooves (7), and a plurality of notches are provided at the bottom of the fixing frame (8).

10. A quenching method for a rack four-side quenching device according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1. Adjust the position of the conveying trolley (3) so that the conveying trolley (3) completely moves out of the area below the quenching mechanism and then places the rail on the rack rail placement rack (4); S2, start the quenching mechanism, and open the spray assembly located on the front side of the running direction of the conveying trolley (3) in the quenching mechanism sensor mounting frame (12) to spray; S3, controlling the driving motor (6) to rotate, the driving motor (6) drives the entire conveying trolley (3) through the transmission screw (5), and the conveying trolley (3) then drives the rack to move toward the quenching mechanism, one end of the rack is first heated at the sensor mounting frame (12), and then sprayed at the cooling sprayer (11) after heating, so as to achieve rapid cooling and quenching; S4. After the quenching of the entire rack is completed, the next rack is replaced, and at the same time, the cooling sprayer (11) that is spraying water on one side of the sensor mounting frame (12) is turned off, and the cooling sprayer (11) on the other side of the sensor mounting frame (12) is turned on, and then the quenching operation of the next rack is carried out.

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