A metal bar heat treatment device for nuclear power engineering

Abstract

The present invention provides a metal bar heat treatment device for nuclear power engineering, which relates to the technical field of heat treatment equipment, comprising: a heat treatment box; a group of cooling water troughs are provided on the heat treatment box, a heat treatment heater is installed in the heat treatment box, a guide rail groove is provided on the inner side of the heat treatment box, and the outer end of the rear end rotating rod is fixedly installed on the transmission shaft of the motor, and the guide shafts at the bottom outside the rotating seat are slidably installed on the driving groove of the linkage plate respectively; this device can realize the automatic entry and exit of metal bars in the cooling water trough, thereby improving efficiency and safety; and the device can synchronously adjust the spacing between adjacent rotating seats to adapt to different metal bar structures and enhance the adjustability of the device; it solves the problem that the cooling link relies on manual labor to move the heat-treated metal bars to the cooling water trough for cooling operation; the operation process is cumbersome, which reduces the use efficiency of the device, and the device is not easy to quickly and synchronously adjust the spacing of the metal bars, which easily leads to the problem of insufficient versatility of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment equipment, and in particular to a heat treatment device for metal bars used in nuclear power engineering. Background Art

[0002] In the field of nuclear power engineering, metal bars are key structural materials, and their performance is directly related to the safety, reliability and service life of nuclear power facilities. The extreme working environment faced by nuclear power projects, such as high temperature, high pressure, strong radiation and complex stress states, places extremely stringent requirements on the comprehensive performance of metal bars, such as strength, toughness, corrosion resistance and fatigue resistance. In order to enable metal bars to meet these special requirements, heat treatment process has become an indispensable key link. Heat treatment is an important metal thermal processing process. Its core principle is to change the internal structure of the metal through a series of precisely controlled means such as heating, insulation and cooling the material in the solid state. And then obtain the expected organizational morphology and performance characteristics; in the heat treatment process, the heating stage can enable the metal atoms to obtain enough energy, break the original lattice structure, and promote the occurrence of atomic diffusion and phase change; the insulation stage provides sufficient time for atomic diffusion and phase change, ensuring that the organizational transformation can be fully carried out, so that the internal organization of the metal reaches a uniform and stable state; the cooling stage affects the phase change process and final organizational morphology of the metal by controlling the cooling rate, thereby realizing the regulation of metal properties. In order to meet the strict requirements of nuclear power projects for high performance and high quality of metal bars and improve the stability and repeatability of the heat treatment process, a metal bar heat treatment device for nuclear power projects is needed.

[0003] As for the existing heat treatment equipment for metal bars used in nuclear power projects, the cooling process relies on manual movement of the heat-treated metal bars to the cooling water tank for cooling operations; the operation process is cumbersome, which reduces the efficiency of the device, and because the temperature of the metal bars is extremely high after heat treatment, manual operation is very likely to cause safety scalding accidents, posing a serious threat to the personal safety of operators; during the heat treatment process, the existing equipment is difficult to ensure the uniformity of heating of the metal bars; the metal bars are prone to local uneven heating, which in turn affects the heat treatment effect, reduces the quality of the metal bars, and cannot meet the high-quality requirements of nuclear power projects for metal bars. In addition, metal bars of different structures and sizes for nuclear power projects have different requirements for heat treatment spacing, and it is not easy for the device to quickly and synchronously adjust the spacing of the metal bars, which easily leads to the problem of insufficient versatility of the device. Summary of the Invention

[0004] An embodiment of the present invention relates to a metal bar heat treatment device for nuclear power projects. Its mounting plate cooperates with the guide rod and the adjustment screw by means of guide holes, threaded holes, and moves left and right under the drive of a drive motor. Combined with the guide rail groove structure, the metal bar can automatically enter and exit the cooling water tank, avoiding manual burns and improving efficiency and safety; the motor drives the rotating rod, chain and drive roller driven sprocket to rotate in the same direction, allowing adjacent drive rollers to drive the metal bar to rotate, ensuring uniform heat treatment and improving the effect; the linkage plate cooperates with the connecting screw and connecting rod of the base through the connecting screw hole and the connecting hole. Rotating the connecting screw can make it move left and right. Combined with the cooperation between the rotating seat and the linkage plate drive groove, the spacing between adjacent rotating seats can be synchronously adjusted to adapt to different metal bar structures, thereby enhancing the adjustability of the device.

[0005] In a first aspect, the present invention provides a heat treatment device for metal bars used in nuclear power engineering, specifically comprising: a heat treatment box;

[0006] The top of the base is slidably mounted on the side of the base, and the driving mechanism can be effectively prevented from swaying and bending, and the like, and the like, when rotating, and the like, and the like, and the driving mechanism can be effectively prevented from swaying and bending, and the like, and the like, and the driving mechanism can be effectively prevented from swaying and bending.

[0007] In at least some embodiments, a group of guide blocks are fixedly mounted on the bottom of the rotating seat, a guide groove is provided on the top of the base, and the guide blocks on the bottom of the rotating seat are slidably mounted on the guide grooves on the top of the base.

[0008] In at least some embodiments, a set of slide rods are fixedly mounted on the inner end of the mounting plate, two sets of guide holes are opened on the right end of the base, and the two sets of guide holes on the right end of the base are slidably mounted on the slide rods on the inner end of the mounting plate.

[0009] In at least some embodiments, a group of connecting screws are rotatably mounted on the left end of the base, a group of connecting screw holes are opened on the left end of the linkage plate, and the connecting screw holes on the left end of the linkage plate are threadedly mounted on the connecting screws on the left end of the base.

[0010] In at least some embodiments, a set of driving sprockets is fixedly mounted on the outer end of the rotating rod, and a set of chains is transmission-connected to the driving sprockets at the outer ends of the two sets of rotating rods.

[0011] In at least some embodiments, a group of guide rods are fixedly installed at the rear end of the heat treatment box, a group of guide holes are opened at the rear end of the mounting plate, and the guide holes at the rear end of the mounting plate are slidably installed on the guide rods at the rear end of the heat treatment box.

[0012] In at least some embodiments, a group of connecting rods are provided at the right end of the base, a group of connecting holes are opened at the right end of the linkage plate, and the connecting holes at the right end of the linkage plate are slidably mounted on the connecting rods at the right end of the base.

[0013] In at least some embodiments, a group of adjustment screws are rotatably installed at the front end of the heat treatment box, a drive motor is fixedly installed at the outer end of the heat treatment box, the outer end of the adjustment screw is fixedly installed on the transmission shaft of the drive motor, a group of threaded holes are opened at the front end of the mounting plate, and the threaded holes at the front end of the mounting plate are threadedly installed on the adjustment screws at the front end of the heat treatment box.

[0014] In at least some embodiments, a group of driven sprockets are fixedly mounted on the outer end of the driving roller, and the driven sprockets at the outer end of the driving roller are respectively meshed and transmission-connected with the bottom of the chain.

[0015] In at least some embodiments, the guide rail groove is a structure with high transverse grooves on both sides and a low transverse groove in the middle. The high transverse grooves and the low transverse grooves are connected by an oblique groove. A group of guide rail rods are fixedly installed at the front and rear ends of the base, and the guide rail rods at the front and rear ends of the base are respectively slidably installed on the guide rail grooves.

[0016] The present invention provides a heat treatment device for metal bars for nuclear power engineering, which has the following beneficial effects:

[0017] The mounting plate in the present invention cooperates with the guide rod and the adjusting screw through the guide hole and the threaded hole, and is driven by the driving motor to move left and right. Combined with the guide rail groove structure, the metal bar automatically enters the cooling water tank for cooling when the mounting plate moves to the middle, and automatically leaves when it moves to the right end, avoiding burns during manual operation, thereby improving the use efficiency and safety protection effect; the motor drives the rotating rod, the chain and the driven sprocket at the outer end of the driving roller to rotate in the same direction, so that the two adjacent groups of driving rollers drive the metal bar to rotate, ensuring uniform heat treatment and improving the heat treatment effect; the linkage plate cooperates with the connecting screw and the connecting rod of the base through the connecting screw hole and the connecting hole. Rotating the connecting screw can move the linkage plate left and right. Combined with the cooperation of the rotating seat and the driving groove of the linkage plate, the spacing between the two adjacent groups of rotating seats can be adjusted synchronously, which is convenient for adjusting the heat treatment spacing according to different metal bar structures and enhancing the adjustability of the device.

[0018] The guide rail is connected to the bottom of the cooling water tank for cooling, and the guide rail is connected to the bottom of the cooling water tank for cooling. When the mounting plate is moved to the right end, the base and the metal bar on it are automatically moved to the bottom of the cooling water tank for cooling. When the mounting plate is moved to the right end, the base and the metal bar on it are automatically moved to the plane of the device in the cooling water tank, which effectively improves the use efficiency of the device and avoids the problem that the hot bar needs to be manually moved to the water tank for cooling after the heat treatment of the metal bar is completed, which may cause safety scalding accidents. The device has better safety protection effect.

[0019] In addition, a group of chains are connected to the driving sprockets at the outer ends of the two groups of rotating rods, and the motor drives the rotating rods to rotate to drive the chain to operate. The driven sprockets at the outer ends of the driving rollers are respectively engaged and connected with the bottom of the chain to drive the driven sprockets at the outer ends of the driving rollers to rotate in the same direction, so as to drive the metal bars thereon to rotate through the two adjacent groups of driving rollers, so that the device has better heat treatment uniformity when heat treating the metal bars, effectively improving the heat treatment effect of the device, and avoiding the metal bars being easily heated unevenly during heat treatment, which affects the heat treatment effect of the metal bars.

[0020] The cam is fixed to the left side of the base frame, and the guide block at the bottom of the swivel seat is slidably mounted on the guide groove at the top of the base frame, and the guide shaft at the bottom outer side of the swivel seat is slidably mounted on the driving groove of the swivel plate, and the outer ends of the two adjacent groups of driving grooves are equidistant, and the inner ends of the two adjacent groups of driving grooves are equidistant, and the outer end spacing of the two adjacent groups of driving grooves is smaller than the inner end spacing of the two adjacent groups of driving grooves, so that the device can synchronously adjust the spacing between the two adjacent groups of rotating seats, so that the device can easily adjust the heat treatment spacing of the metal bars according to different structures, so that the device has better adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached figure:

[0024] Figure 1 It is a front axial schematic diagram of a heat treatment device for metal bars for nuclear power engineering according to the present invention.

[0025] Figure 2 It is a rear axial schematic diagram of a heat treatment device for metal bars for nuclear power engineering according to the present invention.

[0026] Figure 3 The present invention is a schematic diagram of disassembly and assembly of a mounting plate of a metal bar heat treatment device for nuclear power engineering.

[0027] Figure 4 The invention is a schematic diagram of the outer end installation of the base of the metal bar heat treatment device for nuclear power engineering.

[0028] Figure 5 It is a schematic diagram of the inner end of the mounting plate of the metal bar heat treatment device for nuclear power engineering of the present invention.

[0029] Figure 6 The present invention is a schematic diagram of disassembling and assembling a driving roller of a heat treatment device for metal bars used in nuclear power engineering.

[0030] Figure 7 It is a schematic diagram of the rotating seat of the metal bar heat treatment device for nuclear power engineering of the present invention.

[0031] Figure 8 The present invention is a schematic diagram of disassembly and assembly of a linkage plate of a metal bar heat treatment device for nuclear power engineering.

[0032] Figure 9 The invention is a schematic diagram of the installation of a linkage plate of a heat treatment device for metal bars used in nuclear power engineering.

[0033] Reference Signs List

[0034] 1. Heat treatment box; 101. Cooling water trough; 102. Guide rod; 103. Adjusting screw; 104. Driving motor; 105. Guide rail groove; 2. Mounting plate; 201. Guide hole; 202. Threaded hole; 203. Sliding rod; 3. Base; 301. Guide rail rod; 302. Driving roller; 3021. Driven sprocket; 303. Guide hole; 304. Rotating seat; 3041. Guide block; 3042. Guide shaft; 305. Guide groove; 306. Rotating rod; 3061. Driving sprocket; 307. Chain; 308. Connecting screw; 309. Connecting rod; 4. Linkage plate; 401. Connecting screw hole; 402. Connecting hole; 403. Driving groove. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of 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 described 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.

[0036] Please refer to Figures 1 to 9 As shown: Example

[0037] The present invention provides a heat treatment device for metal bars used in nuclear power engineering, comprising a heat treatment box 1;

[0038] A group of cooling water tanks 101 are provided on the heat treatment box 1, a group of heat treatment heaters are installed in the heat treatment box 1, and guide rail grooves 105 are provided on the inner sides of the front and rear ends of the heat treatment box 1. A group of mounting plates 2 are threadedly installed on the top of the heat treatment box 1, and a group of bases 3 are slidably installed on the left end of the mounting plate 2. The base 3 is also slidably installed on the inner end of the heat treatment box 1, and a rotating seat 304 is slidably installed on the top of the base 3. The driving rollers 302 are rotatably installed on the rotating seat 304, and the outer bottom of the rotating seat 304 is also fixedly installed with a guide shaft 3042. The front and rear ends of the right side of the base 3 are respectively rotatably installed. The movable rod 306 and the top of the base 3 are also equipped with a motor, and the outer end of the rear end rotating rod 306 is fixedly mounted on the transmission shaft of the motor, and the outer end of the rotating rod 306 is driven by a chain 307. The bottom of the base 3 is also threadedly equipped with a group of linkage plates 4, and a driving groove 403 is provided on the linkage plate 4. The outer ends of the two adjacent groups of driving grooves 403 are equidistant, and the inner ends of the two adjacent groups of driving grooves 403 are equidistant, and the outer end spacing of the two adjacent groups of driving grooves 403 is smaller than the inner end spacing of the two adjacent groups of driving grooves 403. The guide shafts 3042 at the outer bottom of the rotating seat 304 are respectively slidably mounted on the driving grooves 403 of the linkage plate 4.

[0039] A group of guide rods 102 are fixedly installed at the rear end of the heat treatment box 1, and a group of guide holes 201 are opened at the rear end of the mounting plate 2, and the guide holes 201 at the rear end of the mounting plate 2 are slidably installed on the guide rods 102 at the rear end of the heat treatment box 1; a group of adjusting screws 103 are rotatably installed at the front end of the heat treatment box 1, and a driving motor 104 is fixedly installed at the outer end of the heat treatment box 1, and the outer end of the adjusting screw 103 is fixedly installed on the transmission shaft of the driving motor 104, and a group of threaded holes 202 are opened at the front end of the mounting plate 2, and the threaded holes 202 at the front end of the mounting plate 2 are threadedly installed on the adjusting screw 103 at the front end of the heat treatment box 1.

[0040] In the embodiment of the present invention, Figures 2 to 5As shown, a group of slide bars 203 are fixedly installed on the inner end of the mounting plate 2, and two groups of guide holes 303 are opened at the right end of the base 3, and the two groups of guide holes 303 at the right end of the base 3 are slidably installed on the slide bar 203 at the inner end of the mounting plate 2, and the guide rail groove 105 is a high transverse groove on both sides and a low transverse groove in the middle. The high transverse groove and the low transverse groove are connected by an oblique groove, and the front and rear ends of the base 3 are respectively fixedly installed with a group of guide rail rods 301, and the guide rail rods 301 at the front and rear ends of the base 3 are respectively slidably installed on the guide rail groove 105; specifically, the metal bar is placed on the top of the two adjacent groups of driving rollers 302, and the guide hole 201 at the rear end of the mounting plate 2 is slidably installed on the guide rod 102 at the rear end of the heat treatment box 1, and the threaded hole 202 at the front end of the mounting plate 2 is threadedly installed on the adjusting screw 103 at the front end of the heat treatment box 1, and the driving motor 104 is driven by the adjusting screw 1 03 rotates to drive the mounting plate 2 and the base 3 on it to move left and right. When the mounting plate 2 moves to the left end, the two sets of guide holes 303 at the right end of the base 3 are slidably installed on the slide bar 203 at the inner end of the mounting plate 2, and the guide rail groove 105 is a high transverse groove on both sides and a low transverse groove in the middle. The high transverse groove and the low transverse groove are connected by an oblique groove, so that when the mounting plate 2 moves to the middle, the base 3 and the metal bar material thereon automatically move to the bottom of the cooling water trough 101 for cooling treatment. When the mounting plate 2 moves to the right end, the base 3 and the metal bar material thereon automatically move to the device plane in the cooling water trough 101, effectively improving the use efficiency of the device, avoiding the problem that the device needs to manually move the hot bar material to the water trough for cooling after the heat treatment of the metal bar material is completed, which can easily cause safety scalding accidents, so that the device has better safety protection effect.

[0041] Among them, Figure 8 As shown, a group of driving sprockets 3061 are fixedly installed on the outer ends of the rotating rods 306, and a group of chains 307 are connected to the driving sprockets 3061 at the outer ends of the two groups of rotating rods 306. A group of driven sprockets 3021 are fixedly installed on the outer ends of the driving rollers 302, and the driven sprockets 3021 at the outer ends of the driving rollers 302 are respectively meshed and connected to the bottoms of the chains 307. Specifically, the driving sprockets 3061 at the outer ends of the two groups of rotating rods 306 are connected to the chains 307, and the motor drives the rotating rods 306 to rotate. The drive chain 307 is used for operation, and the driven sprockets 3021 at the outer ends of the drive rollers 302 are respectively engaged with the bottom of the chain 307 for transmission connection, so as to drive the driven sprockets 3021 at the outer ends of the drive rollers 302 to rotate in the same direction, so as to drive the metal bars thereon to rotate through the two adjacent groups of drive rollers 302, so that the device has better heat treatment uniformity when heat treating the metal bars, effectively improving the heat treatment effect of the device, and avoiding the metal bars being easily heated unevenly during heat treatment, which affects the heat treatment effect of the metal bars.

[0042] Example 2: Based on Example 1, Figures 6 to 9 As shown, a group of guide blocks 3041 are fixedly installed at the bottom of the rotating seat 304, a guide groove 305 is provided at the top of the base 3, and the guide blocks 3041 at the bottom of the rotating seat 304 are slidably installed on the guide groove 305 at the top of the base 3, and a group of connecting screws 308 are rotatably installed on the left end of the base 3, a group of connecting screw holes 401 are provided at the left end of the linkage plate 4, and the connecting screw holes 401 at the left end of the linkage plate 4 are threadedly installed on the connecting screws 308 at the left end of the base 3, a group of connecting rods 309 are provided at the right end of the base 3, a group of connecting holes 402 are provided at the right end of the linkage plate 4, and the connecting holes 402 at the right end of the linkage plate 4 are slidably installed on the connecting rods 309 at the right end of the base 3; specifically, the connecting screw holes 401 at the left end of the linkage plate 4 are threadedly installed on the connecting screws 308 at the left end of the base 3, The connecting hole 402 at the right end of the plate 4 is slidably mounted on the connecting rod 309 at the right end of the base 3. By rotating the connecting screw 308, the linkage plate 4 can move left and right. The guide blocks 3041 at the bottom of the rotating seat 304 are slidably mounted on the guide grooves 305 at the top of the base 3. The guide shafts 3042 at the outer bottom of the rotating seat 304 are slidably mounted on the driving grooves 403 of the linkage plate 4, and the outer ends of the two adjacent groups of driving grooves 403 are equidistant, the inner ends of the two adjacent groups of driving grooves 403 are equidistant, and the outer end spacing of the two adjacent groups of driving grooves 403 is smaller than the inner end spacing of the two adjacent groups of driving grooves 403, so that the device can synchronously adjust the spacing between the two adjacent groups of rotating seats 304, so that the device can easily adjust its heat treatment spacing according to metal bars with different structures, so that the device has better adjustability.

[0043] The specific usage and function of this embodiment: In the present invention, the metal bar is placed on the top of two adjacent groups of driving rollers 302, and the driving motor 104 drives the mounting plate 2 and the base 3 thereon to move left and right by rotating the adjusting screw 103. When the mounting plate 2 moves to the left end, the two groups of guide holes 303 at the right end of the base 3 are slidably mounted on the slide bar 203 at the inner end of the mounting plate 2, and the guide rail groove 105 is a high transverse groove on both sides and a low transverse groove in the middle. The high transverse groove and the low transverse groove are connected by an oblique groove, so that when the mounting plate 2 moves to the middle, the base 3 and the metal bar on it are connected. The metal bar material automatically moves to the bottom of the cooling water tank 101 for cooling treatment. When the mounting plate 2 moves to the right end, the base 3 and the metal bar material thereon automatically move to the device plane in the cooling water tank 101, which effectively improves the use efficiency of the device and avoids the problem that the hot bar material needs to be manually moved to the water tank for cooling after the heat treatment of the metal bar material is completed, which may cause safety scalding accidents. The device has a better safety protection effect; the motor drives the rotating rod 306 to rotate to drive the chain 307 to operate, and the driven sprocket 3021 at the outer end of the driving roller 302 is respectively connected to the driven sprocket 3021 of the outer end of the driving roller 302. The bottom of the chain 307 is meshed with a transmission connection to drive the driven sprocket 3021 at the outer end of the driving roller 302 to rotate in the same direction, so as to drive the metal bar thereon to rotate through the two adjacent sets of driving rollers 302, so that the device has better heat treatment uniformity when heat treating the metal bar, effectively improving the heat treatment effect of the device, and avoiding the metal bar being easily heated unevenly during heat treatment, which affects the heat treatment effect of the metal bar; rotating the connecting screw 308 can make the linkage plate 4 move left and right, and the guide blocks 3041 at the bottom of the rotating seat 304 are respectively slidably installed The guide shafts 3042 on the outer bottom of the rotating seat 304 are respectively slidably mounted on the driving grooves 403 of the linkage plate 4, and the outer ends of two adjacent groups of driving grooves 403 are equidistant, and the inner ends of two adjacent groups of driving grooves 403 are equidistant, and the outer end spacing of two adjacent groups of driving grooves 403 is smaller than the inner end spacing of two adjacent groups of driving grooves 403, so that the device can synchronously adjust the spacing between two adjacent groups of rotating seats 304, so that the device can adjust the heat treatment spacing according to metal bars with different structures, so that the device has better adjustability.

Claims

1. A heat treatment device for metal bars used in nuclear power engineering, characterized in that: It includes a heat treatment box (1); The heat treatment box (1) is provided with a group of cooling water troughs (101), a group of heat treatment heaters are installed in the heat treatment box (1), and the inner sides of the front and rear ends of the heat treatment box (1) are provided with guide rail grooves (105). The top of the heat treatment box (1) is threadedly provided with a group of mounting plates (2), and the left end of the mounting plate (2) is slidably provided with a group of bases (3), which are also slidably provided on the inner end of the heat treatment box (1). The top of the base (3) is slidably provided with a rotating seat (304), and the rotating seat (304) is rotatably provided with a driving roller (302), and the outer bottom of the rotating seat (304) is also fixedly provided with a guide shaft (3042). The front and rear ends of the right side of the base (3) are rotatably provided with a rotating seat (304). A rotating rod (306) is provided, a motor is further installed on the top of the base (3), and the outer end of the rear rotating rod (306) is fixedly installed on the transmission shaft of the motor, and a chain (307) is installed on the outer end of the rotating rod (306). A linkage plate (4) is also threadedly installed on the bottom of the base (3), and a driving groove (403) is provided on the linkage plate (4), and the outer ends of two adjacent groups of driving grooves (403) are equidistant, the inner ends of two adjacent groups of driving grooves (403) are equidistant, and the outer end spacing of the two adjacent groups of driving grooves (403) is smaller than the inner end spacing of the two adjacent groups of driving grooves (403). The guide shafts (3042) at the outer bottom of the rotating seat (304) are respectively slidably installed on the driving grooves (403) of the linkage plate (4).

2. The heat treatment device for metal bars for nuclear power engineering according to claim 1, characterized in that: A group of guide rods (102) are fixedly mounted on the rear end of the heat treatment box (1), a group of guide holes (201) are opened on the rear end of the mounting plate (2), and the guide holes (201) on the rear end of the mounting plate (2) are slidably mounted on the guide rods (102) on the rear end of the heat treatment box (1).

3. The heat treatment device for metal bars for nuclear power engineering according to claim 1, characterized in that: A group of adjusting screws (103) are rotatably mounted on the front end of the heat treatment box (1), a driving motor (104) is fixedly mounted on the outer end of the heat treatment box (1), the outer end of the adjusting screw (103) is fixedly mounted on the transmission shaft of the driving motor (104), a group of threaded holes (202) are opened on the front end of the mounting plate (2), and the threaded holes (202) at the front end of the mounting plate (2) are threadedly mounted on the adjusting screws (103) at the front end of the heat treatment box (1).

4. The heat treatment device for metal bars for nuclear power engineering according to claim 1, characterized in that: A set of slide bars (203) are fixedly mounted on the inner end of the mounting plate (2), two sets of guide holes (303) are opened on the right end of the base (3), and the two sets of guide holes (303) on the right end of the base (3) are slidably mounted on the slide bars (203) on the inner end of the mounting plate (2).

5. The heat treatment device for metal bars for nuclear power engineering according to claim 1, characterized in that: The guide rail groove (105) is a structure with high transverse grooves on both sides and a low transverse groove in the middle, and the high transverse grooves and the low transverse grooves are connected by an oblique groove. A group of guide rail rods (301) are fixedly installed at the front and rear ends of the base (3), and the guide rail rods (301) at the front and rear ends of the base (3) are respectively slidably installed on the guide rail grooves (105).

6. The heat treatment device for metal bars for nuclear power engineering according to claim 1, characterized in that: A set of driving sprockets (3061) is fixedly mounted on the outer end of the rotating rod (306), and a set of chains (307) are transmission-connected to the driving sprockets (3061) at the outer ends of the two sets of rotating rods (306).

7. The heat treatment device for metal bars for nuclear power engineering according to claim 6, characterized in that: A set of driven sprockets (3021) are fixedly mounted on the outer end of the driving roller (302), and the driven sprockets (3021) on the outer end of the driving roller (302) are respectively meshed and transmission-connected with the bottom of the chain (307).

8. The heat treatment device for metal bars used in nuclear power engineering according to claim 1, characterized in that: A group of guide blocks (3041) are fixedly mounted on the bottom of the rotating seat (304), a guide groove (305) is provided on the top of the base (3), and the guide blocks (3041) at the bottom of the rotating seat (304) are respectively slidably mounted on the guide grooves (305) at the top of the base (3).

9. The heat treatment device for metal bars used in nuclear power engineering according to claim 1, characterized in that: A group of connecting screws (308) are rotatably mounted on the left end of the base (3), a group of connecting screw holes (401) are opened on the left end of the linkage plate (4), and the connecting screw holes (401) on the left end of the linkage plate (4) are threadedly mounted on the connecting screws (308) on the left end of the base (3).

10. The heat treatment device for metal bars used in nuclear power engineering according to claim 1, characterized in that: A group of connecting rods (309) are provided at the right end of the base (3), a group of connecting holes (402) are opened at the right end of the linkage plate (4), and the connecting holes (402) at the right end of the linkage plate (4) are slidably mounted on the connecting rods (309) at the right end of the base (3).

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