A horizontal roll quenching machine tool

Abstract

The present invention relates to the technical field of roll quenching, and specifically to a horizontal roll quenching machine tool, comprising a main chuck and a roll clamped in the main chuck, a heat treatment mechanism arranged outside the roll, a quenching mechanism installed on the heat treatment mechanism, a load-bearing and sliding-assisting mechanism installed outside the heat treatment mechanism, and a transmission mechanism installed on the load-bearing and sliding-assisting mechanism. By setting the traditional vertical suspension roll mode to a horizontal load-bearing mode, when the roll is horizontally placed and extended toward the inside of a protective outer silo and is heat treated within a set time, the controlled protective outer silo will move toward the other end of the roll, and at the same time, the blade of the spray outer silo will scrape off the oxidized material on the roll surface, thereby ensuring that the roll surface will not be quenched and solidified to form a tumor due to the residual oxidized carbon deposits after heat treatment.

Description

Technical Field

[0001] The invention relates to the technical field of roll quenching, in particular to a horizontal roll quenching machine tool. Background Art

[0002] Rollers are components on a rolling mill that cause the rolled metal to undergo plastic deformation. The shape, size and material of the rolls must be compatible with the rolling mill and the rolled products. Commonly used rolls need to be quenched before being put into use to ensure that the rolled workpiece will not easily cause wear on the roll body and other problems.

[0003] During the trial period, the straight seam welded pipe forming roller exerts a strong extrusion force on the rolled workpiece, so the pressure and friction it bears are also very large. This type of roller has certain defects in the traditional quenching process. Since the straight seam welded pipe forming roller belongs to the category of cold rolling, but the pressure it bears is relatively large, it needs to be subjected to surface hardening and deep quenching treatment. Due to the traditional vertical suspension heat treatment and subsequent transfer quenching, the roller surface will not be quenched in time during the process, forming oxidized carbon deposits, and after quenching, the oxidized carbon deposits will harden, which will affect the quality of the subsequent finished products of the rollers. In addition, this type of vertical suspension is difficult to turn. Affected by the weight of the rollers themselves, the replacement of the rollers requires the cooperation of specific cranes, which increases the cost of heat treatment to quenching of the rollers.

[0004] In view of this, a horizontal roll quenching machine was designed to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is:

[0007] A horizontal roller quenching machine comprises a main chuck and a roller clamped in the main chuck, a heat treatment mechanism arranged outside the roller, a quenching mechanism installed on the heat treatment mechanism, a load-bearing and sliding-assisting mechanism installed outside the heat treatment mechanism, and a transmission mechanism installed on the load-bearing and sliding-assisting mechanism; the heat treatment mechanism comprises a horizontally placed heating component, a load-bearing beam arranged on the heating component, and a screw sleeve installed inside the load-bearing beam; the quenching mechanism comprises two spray outer chambers arranged on the heating component and a plurality of nozzles for quenching spray coolant; the load-bearing and sliding-assisting mechanism comprises two bottom beam plates and two top beam plates arranged outside the heating component and a linkage shaft for boosting the screw sleeve; the transmission mechanism is used to block the heat energy during the heat treatment of the roller and provide kinetic energy for boosting the heating component.

[0008] In a preferred example, the present invention can be further configured as follows: the heating assembly includes a protective outer silo;

[0009] Two T-shaped end columns are arranged on both sides of the protective outer silo, and a pad and a clamp seat installed on the T-shaped end column are arranged on the threaded section of the T-shaped end column;

[0010] Two brackets installed in two T-shaped end columns, auxiliary clamps installed on the two brackets, and a heating coil arranged inside the protective outer silo;

[0011] The diameter width of the inner cavity of the protective outer silo is adapted to the diameter width of the roller.

[0012] In a preferred example, the present invention can be further configured as follows: the spray outer chamber is composed of an annular tube and an annular gasket, and bolts are arranged in the annular gasket;

[0013] The bottoms of the two spray outer bins are both provided with end pipes, wherein the end pipe at the bottom of one spray outer bin is connected to a first joint, and the end pipe at the bottom of the other spray outer bin is connected to a second joint;

[0014] A flow guide tube, a plug rod movably installed inside the flow guide tube, and a support frame installed at the outer end of the plug rod are installed at the bottom of the first joint and the second joint.

[0015] In a preferred example, the present invention can be further configured as follows: a socket adapted to the bracket is provided in the T-shaped end column in the protective outer silo, and a nut pressed against the clamp seat is installed on the threaded section of the T-shaped end column.

[0016] In a preferred example, the present invention can be further configured as follows: the inner layer of the protective outer silo is provided with a hollow cavity, and a flame retardant and heat insulating plugging material is arranged in the hollow cavity.

[0017] In a preferred example, the present invention can be further configured as follows: the annular tube and the annular gasket in the spray outer chamber are both made of stainless steel, and a blade for scraping off oxidized carbon deposits on the surface of the roller is provided at one end of the annular tube close to the annular gasket.

[0018] In a preferred example, the present invention can be further configured as follows: the flow guide pipe is composed of a thin-diameter pipe and a wide-diameter pipe, and the outer end of the wide-diameter pipe is connected to the liquid injection pipe;

[0019] The plug rod is composed of an extended rod body and a plug head, and the plug head is movably installed inside the small-diameter pipe. The plug head is used to block the port at the bottom of the first joint and guide the coolant to flow into the second joint.

[0020] In a preferred example, the present invention can be further configured as follows: the load-bearing and sliding-assisting mechanism further includes two bottom frames mounted on two bottom beam plates, two top frames mounted on two top beam plates, and a limiting shaft sleeve mounted inside the top frames;

[0021] The support frame is fixedly mounted on one of the base frames.

[0022] In a preferred example, the present invention can be further configured as follows: the linkage shaft is composed of an extended screw rod, two column heads, and an insertion rod installed on one column head.

[0023] In a preferred example, the present invention can be further configured as follows: the transmission mechanism includes a heat insulation board installed on the inner sides of the two top frames, a chassis installed on the top of the heat insulation board, and a motor installed inside the chassis.

[0024] By adopting the above technical solution, the beneficial effects achieved by the present invention are:

[0025] 1. The present invention sets the traditional vertical suspension mode of the rolling roller to a horizontal load-bearing mode. When the rolling roller is horizontally placed and extends into the protective outer silo and is heat-treated within a set time, the controlled protective outer silo will move toward the other end of the rolling roller. At the same time, the blade of the spray outer silo will scrape off the oxidized substances on the surface of the rolling roller, thereby ensuring that the surface of the rolling roller will not be quenched and solidified to form nodules due to oxidized carbon residues after heat treatment.

[0026] 2. The present invention sets symmetrically distributed spray outer bins at both ends of the protective outer bin, cooperates with the guide pipe and the plug rod to control the two joints separately. At this time, during the transposition heat treatment process of the roll in the horizontal state, the other half of the static roll body can be quickly and stably quenched after the drainage of the plug rod, thereby avoiding the need to transfer the roll after the heat treatment and forming a large amount of oxidized carbon deposits.

[0027] 3. The present invention provides a freely movable main chuck and a stationary auxiliary chuck at the other end of the protective outer cylinder. When the auxiliary chuck follows the protective outer cylinder to move toward the other half of the roller, the half of the roller that has been quenched can be quickly plugged and fixed by the auxiliary chuck. When the main chuck is withdrawn from the other end of the roller, the roller body can still be stably located inside the protective outer cylinder, so that the roller body can be evenly heated in a stationary state. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the present invention when used;

[0029] Figure 2 It is a bottom view schematic diagram of the present invention;

[0030] Figure 3 is a schematic diagram of the transmission mechanism of the present invention;

[0031] Figure 4 It is an exploded schematic diagram of the load-bearing and sliding-assisting mechanism of the present invention;

[0032] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point A in the middle;

[0033] Figure 6 It is a partial front view schematic diagram of the present invention;

[0034] Figure 7 It is a schematic diagram of the quenching mechanism of the present invention;

[0035] Figure 8 For the present invention Figure 7 The enlarged schematic diagram of point B in the middle;

[0036] Fig. 9 For the present invention Figure 7 The enlarged schematic diagram of the center C;

[0037] Fig.10 It is a schematic diagram of the heat treatment mechanism of the present invention;

[0038] Fig.11 For the present invention Fig.10 Enlarged schematic diagram of point D in the middle.

[0039] Reference numerals:

[0040] 100, main chuck;

[0041] 200, roller;

[0042] 300, heat treatment mechanism; 310, heating assembly; 311, protective outer silo; 312, pad; 313, clamp seat; 320, heating coil; 330, load-bearing beam; 340, screw sleeve; 350, bracket; 360, auxiliary clamp;

[0043] 400, quenching mechanism; 410, spray outer chamber; 420, spray head; 430, flow guide pipe; 440, first joint; 450, second joint; 460, plug rod; 470, support frame;

[0044] 500, bearing and sliding aid mechanism; 510, bottom beam plate; 520, top beam plate; 530, bottom frame; 540, top frame; 550, limiting shaft sleeve; 560, linkage shaft;

[0045] 600, transmission mechanism; 610, heat shield; 620, chassis; 630, motor. DETAILED DESCRIPTION

[0046] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0047] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0048] A horizontal roll quenching machine provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings. Embodiment 1:

[0049] Combination Figure 1-Figure 11 As shown, a horizontal roll quenching machine provided by the present invention includes a main chuck 100 and a roll 200 clamped in the main chuck 100, a heat treatment mechanism 300 arranged outside the roll 200, a quenching mechanism 400 installed on the heat treatment mechanism 300, a load-bearing and sliding-assisting mechanism 500 installed outside the heat treatment mechanism 300, and a transmission mechanism 600 installed on the load-bearing and sliding-assisting mechanism 500, wherein the transmission mechanism 600 is used to prevent the heat energy of the roll 200 from overflowing during the heat treatment, and the load-bearing and sliding-assisting mechanism 500 is used to provide a stable support platform for the heat treatment mechanism 300.

[0050] The heat treatment mechanism 300 comprises a horizontally placed heating assembly 310, a load-bearing beam 330 disposed on the heating assembly 310, and a screw sleeve 340 installed inside the load-bearing beam 330;

[0051] The quenching mechanism 400 includes two spraying outer chambers 410 disposed on the heating assembly 310 and a plurality of spray heads 420 for quenching and spraying a cooling liquid;

[0052] The bearing and sliding-assisting mechanism 500 includes two bottom beams 510 and two top beams 520 arranged outside the heating assembly 310, a linkage shaft 560 for assisting the screw sleeve 340, two bottom frames 530 installed on the two bottom beams 510, two top frames 540 installed on the two top beams 520, and a limiting shaft sleeve 550 installed inside the top frame 540. The linkage shaft 560 is composed of an extended screw rod, two column heads, and a plug rod installed on one column head.

[0053] The support frame 470 is fixedly mounted on one of the base frames 530;

[0054] The transmission mechanism 600 is used to block the heat energy of the roller 200 during the heat treatment and provide kinetic energy for the boost of the heating assembly 310;

[0055] The transmission mechanism 600 includes a heat insulation plate 610 installed inside the two top frames 540 , a chassis 620 installed on the top of the heat insulation plate 610 , and a motor 630 installed inside the chassis 620 .

[0056] Since the straight seam welded pipe forming roller belongs to the category of cold-bending forming molds, when the workpiece is in the forming process, the roller is subjected to strong extrusion and friction. The roller that has not been well heat treated and quenched will wear due to excessive extrusion and friction. The situation that the roller that has not been well heat treated is half hard and half soft is mainly because the heating temperature of the roller is uneven during the quenching heating process and the heating is transferred to the quenching link. There is initial temperature loss on the surface of the roller. With contact with oxygen, derivatives of oxidized carbon deposits will be produced on the surface of the roller. When the oxidized carbon deposits are not cleaned in time, the oxidized carbon deposits after quenching will harden, which will affect the quality of the roller. At the same time, the vertically suspended roller needs to be turned over with the cooperation of a crane, which will increase the cost.

[0057] The device is formed by placing the roller horizontally, setting a horizontal protective outer silo 311, and setting a heating coil 320 inside the protective outer silo 311. When the external wire of the heating coil 320 is energized and continuously releases heat, the main chuck 100 clamps one end of the roller 200 and delivers it to the inner cavity of the protective outer silo 311. The end of the roller 200 extending into the inner cavity of the protective outer silo 311 can be continuously heat-treated. At this time, the roller 200 can avoid being transferred during the heat treatment process. At the same time, the small space heat treatment method can reduce the formation of oxidized carbon deposits on the surface of the roller. When the end of the roller 200 extending into the inner side of the heating coil 320 is heat-treated and transferred outward, the end of the roller 200 that has been heat-treated will extend outward from one of the spray outer silos 410. Finally, the oxidized carbon deposits on the heat-treated end of the roller 200 will be scraped off by the blade of the spray outer silo 410. Finally, the roller 200 can be quickly quenched at the moment when the oxidized carbon deposits on the surface of the roller are scraped off.

[0058] When one end of the roller 200 is heat treated and quenched, the protective outer cylinder 311 moves laterally along the outside of the roller 200 until the protective outer cylinder 311 and the heating coil 320 are transferred to the other end of the roller 200. At this time, the end of the roller 200 that has been initially heat treated and quenched can be clamped and fixed by the auxiliary clamp 360. At this time, the horizontally placed roller 200 can be quickly heat treated without the need for transportation, thereby effectively reducing costs. Embodiment 2:

[0059] Combination Figure 4-Figure 11 As shown, based on the embodiment 1, the heating assembly 310 includes a protective outer silo 311;

[0060] Two T-shaped end columns are arranged on both sides of the protective outer silo 311, and a washer 312 and a clamp seat 313 installed on the T-shaped end column are arranged on the threaded section of the T-shaped end column;

[0061] Two brackets 350 installed in two T-shaped end columns, a secondary clamp 360 installed on the two brackets 350, and a heating coil 320 arranged inside the protective outer silo 311;

[0062] The diameter width of the inner cavity of the protective outer silo 311 is adapted to the diameter width of the roller 200;

[0063] A plug hole adapted to the bracket 350 is provided in the T-shaped end column in the protective outer silo 311, and a nut pressed against the clamp seat 313 is installed on the threaded section of the T-shaped end column;

[0064] The inner layer of the protective outer silo 311 is provided with a hollow cavity, and a flame retardant and heat insulating plugging material is arranged in the hollow cavity.

[0065] Two sets of bolts are used to assemble the two bottom beam plates 510 and the two top beam plates 520. At this time, the adjacent bottom beam plates 510 and the top beam plates 520 can position and clamp the pad 312. At this time, the heating component 310 that is limited and clamped by the two sets of bottom beam plates 510 and the top beam plates 520 can provide a uniformly heated bearing platform for the horizontally placed roller 200. At this time, the horizontally placed roller 200 can be quickly heat-treated by the freely extended heating component 310 without the need for transportation.

[0066] When the motor 630 starts and runs, its internal transmission shaft will drive the linkage shaft 560. At this time, the linkage shaft 560 will help the screw sleeve 340 and the load-bearing beam 330 to move stably along the bottom of the insulation board 610. Under the load of the two bottom beams 510 and the two top beams 520, the heating component 310 will carry the bracket 350 and the auxiliary clamp 360 to evenly heat and clamp the two ends of the roller 200. Embodiment three:

[0067] Combination Figure 6-Figure 11 As shown, on the basis of Example 1, the spray outer chamber 410 is composed of an annular tube and an annular gasket, and bolts are arranged inside the annular gasket;

[0068] The bottoms of the two spray outer chambers 410 are both provided with end pipes, wherein the end pipe at the bottom of one spray outer chamber 410 is connected to a first joint 440, and the end pipe at the bottom of the other spray outer chamber 410 is connected to a second joint 450;

[0069] The first joint 440 and the second joint 450 are provided with a guide tube 430, a plug rod 460 movably installed inside the guide tube 430, and a support frame 470 installed at the outer end of the plug rod 460 at the bottom thereof;

[0070] The annular tube and the annular gasket in the spray outer chamber 410 are both made of stainless steel, and a knife edge for scraping off the oxidized carbon deposits on the surface of the roller 200 is provided at one end of the annular tube close to the annular gasket;

[0071] The flow guide pipe 430 is composed of a thin-diameter pipe and a wide-diameter pipe, and the outer end of the wide-diameter pipe is connected to the injection pipe;

[0072] The plug rod 460 is composed of an extended rod body and a plug head, and the plug head is movably installed inside the small-diameter pipe. The plug head is used to block the port at the bottom of the first joint 440 and guide the coolant to flow into the second joint 450.

[0073] By installing the two spray outer chambers 410 at the two ends of the protective outer chamber 311, the blades of the two spray outer chambers 410 face the ports at the two ends of the protective outer chamber 311, and the main chuck 100 and the auxiliary chuck 360 are symmetrically distributed in the horizontal direction. When the guide tube 430 is connected to the external injection pipeline, as the heating component 310 moves horizontally as a whole, the guide tube 430 will shrink along the outside of the plug rod 460, and the plug head at the inner end of the plug rod 460 will move from the narrow-diameter pipeline to the wide-diameter pipeline. The cooling liquid in the wide-diameter pipe is transferred from the narrow-diameter pipe to the second joint 450, and finally enters another spray outer chamber 410 from the second joint 450. At the same time, the heating component 310 is transferred to the other half of the roller 200 as a whole, and the auxiliary clamp 360 can fix the end of the roller 200 after initial heat treatment and quenching, thereby effectively ensuring that the roller 200 can be adaptively quenched after being heated in the whole partition.

[0074] The working principle and use process of the present invention: the traditional method requires the use of a rotating chuck to clamp and fix one end of the roller until the roller is placed vertically. At this time, the part suspended in the heat treatment furnace can be evenly heated under high-speed rotation, and after heating, it is transferred to the next link for quenching. This method has many disadvantages. After the roller surface is heated, a certain amount of oxidized carbon deposits will be produced. At the same time, the roller will appear half hard and half soft, resulting in insufficient heating temperature and undissolved carbon deposits, which reduces the hardness of the roller.

[0075] The device clamps and fixes one end of the roller 200 by using the main chuck 100 until the horizontal roller 200 is lifted horizontally, and then the horizontal roller 200 is directed toward the inner cavity of the protective outer silo 311. At this time, the heating coil 320 arranged in the inner cavity of the protective outer silo 311 can heat-treat the half roller body of the roller 200 when it is powered on, and set the heating time. After the half roller body of the roller 200 is continuously heat-treated, the outer end of the guide tube 430 can be connected to the water pipe. In the initial state, the plug rod 460 is located in the cavity of the guide tube 430 near the second joint 450, so the cooling water will enter the interior of one of the spray outer silos 410 along the first joint 440, and be sprayed outward in atomization along multiple nozzles 420.

[0076] When the guide tube 430 is started and operated, its internal transmission shaft will drive the linkage shaft 560, and the linkage shaft 560 constrained by the two limiting sleeves 550 will assist the screw sleeve 340 and the load-bearing beam 330. At this time, the heating component 310 installed at the bottom of the load-bearing beam 330 will move laterally along the slideway formed by the bottom beam plate 510 and the top beam plate 520. At this time, the heating component 310 will move laterally toward the main chuck 100. At this time, the part of the roller 200 that extends into the inner cavity of the protective outer silo 311 and is heat-treated will move closer to the auxiliary chuck 360. As the heat-treated part of the roller 200 continues to extend, the spray outer chamber 410 and the multiple nozzles 420 for spraying the coolant can continuously and stably quench the roller body until the quenched end of the roller 200 is inserted into the auxiliary chuck 360, and the protective outer chamber 311 is also transferred to the other half of the roller 200. At the same time, the plug of the plug rod 460 will move to the port at the bottom of the first joint 440 and seal the first joint 440, and the coolant in the inner cavity of the guide tube 430 will be injected into the second joint 450 and the other spray outer chamber 410.

[0077] When the other half of the above-mentioned roller 200 is heat-treated, according to the above steps, until the heating component 310 is reset and the heating coil 320 is de-energized, another spray outer chamber 410 and multiple nozzles 420 in the water-flowing state can quickly quench the roller body of the other half of the roller 200 that has been heat-treated. At this time, the device can avoid the problem that the large roller needs to be transferred and quenched after heat treatment, resulting in one side of the roller body being soft and the other side being hard. At the same time, the blades on the inner side of the two spray outer chambers 410 are scraped along the surface of the roller 200. The oxidized carbon deposits on the surface of the roller 200 that have risen due to heat treatment can be repeatedly scraped off and quenched in time after scraping to avoid the oxidized carbon deposits being hardened by quenching in an instant when they cannot be cleaned, thereby causing scratches on the surface of the roller 200.

[0078] Although the 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 claims and their equivalents.

Claims

1. A horizontal roll quenching machine tool, comprising a main chuck (100) and a roll (200) clamped in the main chuck (100), characterized in that: It also includes a heat treatment mechanism (300) disposed outside the rolling roller (200), a quenching mechanism (400) mounted on the heat treatment mechanism (300), a load-bearing and sliding-assisting mechanism (500) mounted outside the heat treatment mechanism (300), and a transmission mechanism (600) mounted on the load-bearing and sliding-assisting mechanism (500); The heat treatment mechanism (300) comprises a horizontally placed heating component (310), a load-bearing beam (330) disposed on the heating component (310), and a screw sleeve (340) installed inside the load-bearing beam (330); The heating assembly (310) comprises a protective outer barrel (311), two brackets (350) installed in two T-shaped end columns, a secondary clamp (360) installed on the two brackets (350), and a heating coil (320) arranged inside the protective outer barrel (311); The diameter width of the inner cavity of the protective outer silo (311) is adapted to the diameter width of the roller (200); The quenching mechanism (400) comprises two spraying outer chambers (410) arranged on the heating assembly (310) and a plurality of spray heads (420) for quenching and spraying cooling liquid; The bottoms of the two spray outer chambers (410) are both provided with end pipes, wherein the end pipe at the bottom of one spray outer chamber (410) is connected to a first joint (440), and the end pipe at the bottom of the other spray outer chamber (410) is connected to a second joint (450); The load-bearing and sliding-assisting mechanism (500) comprises two bottom beam plates (510) and two top beam plates (520) arranged outside the heating assembly (310), and a linkage shaft (560) for assisting the screw sleeve (340); The transmission mechanism (600) is used to block the heat energy of the roller (200) during the heat treatment and to provide kinetic energy for the boost of the heating component (310); After the other half of the roller (200) is heat-treated, until the heating component (310) is reset and the heating coil (320) is powered off, another spray outer chamber (410) and a plurality of nozzles (420) in a water-flowing state can quickly quench the roller body of the other half of the roller (200) that has been heat-treated, thereby avoiding the problem that a large roller body becomes soft on one side and hard on the other side during the quenching process after heat treatment. At the same time, the blades on the inner sides of the two spray outer chambers (410) scrape along the surface of the roller (200), and the oxidized carbon deposits on the surface of the roller (200) that are raised due to heat treatment can be repeatedly scraped off, and the roller can be quenched in time after scraping off.

2. A horizontal roll quenching machine according to claim 1, characterized in that: Two T-shaped end columns are arranged on both sides of the protective outer storage tube (311), and a washer (312) and a clamping seat (313) mounted on the T-shaped end column are arranged on the threaded section of the T-shaped end column.

3. A horizontal roll quenching machine according to claim 1, characterized in that: The spray outer chamber (410) is composed of an annular tube and an annular gasket, and bolts are arranged inside the annular gasket; A flow guide tube (430), a plug rod (460) movably mounted inside the flow guide tube (430), and a support frame (470) mounted on the outer end of the plug rod (460) are installed at the bottom of the first joint (440) and the second joint (450).

4. A horizontal roll quenching machine according to claim 2, characterized in that: A plug hole adapted to the bracket (350) is provided in the T-shaped end column in the protective outer silo (311), and a nut pressed against the clamping seat (313) is installed on the threaded section of the T-shaped end column.

5. The horizontal roll quenching machine tool according to claim 2, characterized in that: The inner layer of the protective outer silo (311) is provided with a hollow cavity, and a flame retardant and heat insulating plugging material is arranged in the hollow cavity.

6. The horizontal roll quenching machine tool according to claim 1, characterized in that: The annular tube and the annular gasket in the spray outer chamber (410) are both made of stainless steel, and a knife edge for scraping off oxidized carbon deposits on the surface of the roller (200) is provided at one end of the annular tube close to the annular gasket.

7. The horizontal roll quenching machine tool according to claim 3, characterized in that: The flow guide pipe (430) is composed of a thin-diameter pipe and a wide-diameter pipe, and the outer end of the wide-diameter pipe is connected to the liquid injection pipe; The plug rod (460) is composed of an extended rod body and a plug head, and the plug head is movably installed inside the narrow-diameter pipe, and the plug head is used to block the port at the bottom of the first joint (440) and guide the coolant toward the inside of the second joint (450).

8. The horizontal roll quenching machine tool according to claim 3, characterized in that: The load-bearing and sliding-assisting mechanism (500) further comprises two bottom frames (530) mounted on the two bottom beam plates (510), two top frames (540) mounted on the two top beam plates (520), and a limiting shaft sleeve (550) mounted inside the top frame (540); The support frame (470) is fixedly mounted on one of the base frames (530).

9. The horizontal roll quenching machine tool according to claim 1, characterized in that: The linkage shaft (560) is composed of an extended screw rod, two column heads, and an insertion rod installed on one of the column heads.

10. The horizontal roll quenching machine tool according to claim 1, characterized in that: The transmission mechanism (600) comprises a heat insulation board (610) installed inside two top frames (540), a chassis (620) installed on the top of the heat insulation board (610), and a motor (630) installed inside the chassis (620).

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