Double-channel high-strength round pipe induction quenching equipment

Abstract

The invention provides double-channel high-strength circular tube induction quenching equipment. The equipment comprises a circular tube discharging mechanism, a quenching mechanism and a quenching mechanism, the round tube split blanking conveying mechanism is mounted on the side edge of the round tube discharging mechanism; the round pipe conveying mechanism, the double-round-pipe power propelling mechanism, the double-round-pipe pressing transition mechanism, the double-round-pipe friction conveying mechanism, the quenching and tempering device, the double-round-pipe friction conveying mechanism, the slow-cooling discharging mechanism and the discharging buffering mechanism are installed behind the round pipe split blanking conveying mechanism in the round pipe conveying direction; and the round pipe stacking swing frame is mounted on one side of the unloading buffering mechanism. According to the double-channel high-strength round pipe induction quenching equipment, automatic feeding, distributing and forward conveying of round pipes can be achieved, two round pipes can be conveyed at the same time, and the feeding and conveying efficiency of the round pipes is greatly improved. The double-channel high-strength round pipe induction quenching equipment is reasonable in design and simple in structure, and automatic feeding, material distribution, stable forward pushing, quenching, tempering, slow cooling, surface grinding and discharging of double round pipes can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of quenching equipment, and in particular to a double-channel high-strength round tube induction quenching equipment. Background Art

[0002] During the actual processing, high-strength round tubes need to undergo surface quenching, tempering and other operations to enhance the surface strength of the round tubes. After quenching, tempering and water cooling, the high-strength round tubes also need to be polished on the surface of the tempered round tubes, and the round tubes need to be slowly pushed forward so that the round tubes are gradually cooled before unloading. In the prior art, the patent CN115198078A previously applied by the applicant discloses a continuous induction quenching heat treatment equipment for automobile bumper bars, which can adapt to the processing requirements of automatic loading, conveying, speed separation, linear forward conveying, quenching, tempering, cooling and unloading of automobile bumper bars of different models and sizes, and can realize the stable linear forward conveying of automobile bumper bars, and prevent deviation and slipping during quenching and tempering. However, in actual application, the following defects are still found: (1) The equipment can only load, convey, quench and temper one round tube at a time, and cannot load, convey, quench and temper two round tubes at the same time, so the production efficiency is low; (2) It is impossible to grind the surface of the round tube after quenching, and it is impossible to realize automatic unloading of the two round tubes; (3) It is impossible to realize the stable and uniform forward advancement of the two round tubes at the same time; (4) It is impossible to realize automatic channel dropping when loading the two round tubes. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention proposes a dual-channel high-strength round tube induction quenching equipment, which can realize automatic loading, material distribution, stable forward advancement, quenching, tempering, slow cooling, surface grinding and unloading of double round tubes.

[0004] The present invention provides a dual-channel high-strength round tube induction quenching equipment, comprising: a round tube discharging mechanism, the round tube discharging mechanism comprises a discharging rack, a plurality of steel tube placing brackets arranged side by side in a horizontal direction and spaced apart are installed on the discharging rack, the steel tube placing brackets are arranged tilted forward, a plurality of blanking guide plates arranged side by side in a horizontal direction and spaced apart are installed in front of the steel tube placing brackets on the discharging rack, strip holes are opened on the upper surface of each blanking guide plate in a vertical direction, a front moving cross bar penetrates through the strip holes of each blanking guide plate in a horizontal direction, a moving cross bar push-pull cylinder is installed below the front moving cross bar in a vertical direction and is connected to the front moving cross bar, a plurality of front baffle plates arranged side by side and spaced apart are installed in a horizontal direction on the upper surface of the front moving cross bar, A rear baffle plate mounting cross bar is installed at the oblique rear, and a plurality of rear baffle plates are installed on the rear baffle plate mounting cross bar; a round tube channel blanking conveying mechanism is installed on the side of the round tube discharge mechanism, and the round tube channel blanking conveying mechanism includes a blanking frame, and two channel blanking assemblies with the same structure are installed in parallel and at intervals on the blanking frame, a first synchronous adjustment assembly is installed between the two channel blanking assemblies, a first conveyor belt device is installed above the first synchronous adjustment assembly and is located between the two channel blanking assemblies, and the channel blanking assembly includes a support plate, and the support plate is installed on the blanking frame, and the wedge-shaped guide frame is installed on the support plate, the first blanking assembly and the second blanking assembly are installed on the blanking frame in parallel and at intervals and are located behind the support plate, and the side plates are fixed On the second support plate arranged in the second blanking assembly, the second support plate is installed on the telescopic shaft of the vertically arranged second cylinder, and the second cylinder drives the second support plate to drive the side plates to move up and down. A central rotating shaft is installed above the first blanking assembly and the second blanking assembly, and two symmetrically arranged flip plates are respectively fixed on the left and right sides of the central rotating shaft, and the two flip plates are connected by multiple connecting rods. The end of the flip plate is hinged to the top of the pull rod, and the bottom of the pull rod is hinged to the side plate. When the second cylinder drives the second support plate to drive the side plates to move downward, the side plates drive the flip plates to rotate around the central rotating shaft through the pull rod, so that the front end of the flip plate is tilted; when the second cylinder drives the second support plate to drive the side plates to reset, the side plates drive the flip plates to rotate around the central rotating shaft through the pull rod. The turning plate is reset; a round tube conveying mechanism is installed behind the round tube channel blanking conveying mechanism along the round tube conveying direction; a double round tube power propulsion mechanism is installed behind the round tube conveying mechanism along the round tube conveying direction; a double round tube pressing material transition mechanism is installed behind the double round tube power propulsion mechanism along the round tube conveying direction; a double round tube friction conveying mechanism is installed behind the double round tube pressing material transition mechanism along the round tube conveying direction; a quenching and tempering device is installed behind the double round tube friction conveying mechanism along the round tube conveying direction; a double round tube friction conveying mechanism is installed behind the quenching and tempering device along the round tube conveying direction; a slow cooling unloading mechanism is installed behind the double round tube friction conveying mechanism along the round tube conveying direction; and a unloading buffer mechanism is installed behind the slow cooling unloading mechanism along the round tube conveying direction;And a round tube stacking swing frame installed on one side of the unloading buffer mechanism. ;

[0005] Preferably, the first blanking assembly includes a first bracket, which is fixed to the blanking machine frame, the first cylinder is fixed to the first bracket in the vertical direction, the first support plate is fixed to the telescopic axis of the first cylinder, and a plurality of first circular tube support blocks distributed in parallel and at intervals are installed on the first support plate, each first circular tube support block has a V-shaped groove for limiting the position of the circular tube on the top, and a first partition plate is installed obliquely behind the first circular tube support block; the second blanking assembly includes a second bracket, which is fixed to the blanking machine frame and is located behind the first bracket, the second cylinder is fixed to the second bracket in the vertical direction, the second support plate is fixed to the telescopic axis of the second cylinder, and a plurality of second circular tube support blocks distributed in parallel and at intervals are installed on the second support plate, each second circular tube support block has a V-shaped groove for limiting the position of the circular tube on the top, a vertically arranged second partition plate is installed in front of the second circular tube support block, a rear baffle plate is installed behind the second circular tube support block, and the side plates are fixed to the sides of the second support plate.

[0006] Preferably, the first synchronous adjustment component includes a first gearbox fixed on the blanking machine frame, two second gearboxes are symmetrically installed on the front and rear sides of the first gearbox, and synchronous lifting worm gears are symmetrically installed on the left and right sides of each second gearbox, and the synchronous drive motor is installed on the input shaft of the first gearbox, and the output shaft of the first gearbox is connected to the input shaft of the second gearbox through a driving rod, and the output shaft of the second gearbox is connected to the synchronous lifting worm gear through a synchronous connecting rod, and the top of the worm of each synchronous lifting worm gear is installed with a connecting flange; the first conveyor belt device includes an outer shell, and a plurality of support ears are installed at the bottom of the outer shell, and the outer shell is connected to the connecting flange at the top of the synchronous lifting worm gear in the first synchronous adjustment component through the support ears, and two parallel and spaced annular conveyor belts are installed on the outer shell, and limit baffles are correspondingly installed on the left and right sides of each annular conveyor belt.

[0007] Preferably, the round tube conveying mechanism comprises a conveying frame, a second synchronous adjustment component is mounted on the conveying frame, and a second conveyor belt device is mounted on the second synchronous adjustment component.

[0008] Preferably, the double-tube power propulsion mechanism includes a propulsion frame, a gear box is installed on the propulsion frame, a propulsion motor is installed on the input shaft of the gear box, a plurality of output shafts are arranged on the front side of the gear box, a support plate is installed in the front of the gear box, two slide rails are installed on the support plate, which are spaced side by side and vertically downward, and the front mounting frame is installed on the slide rail, and a front mounting frame adjusting hand wheel is installed on the top of the support plate, and the front mounting frame adjusting hand wheel is connected to the back of the front mounting frame through a front mounting frame adjusting screw rod, and an upper conveying roller group and a lower conveying roller group are installed on the front mounting frame, and two rows of conveying rollers are arranged in parallel and spaced front and back on the upper conveying roller group and the lower conveying roller group are respectively connected to the output shaft of the gear box through a transmission coupling, and the upper conveying roller group adjusting cylinder is vertically downwardly installed on the top of the front mounting frame, and the telescopic shaft of the upper conveying roller group adjusting cylinder is connected to the mounting frame of the upper conveying roller group.

[0009] Preferably, the double-tube press transition mechanism includes a transition frame, a transition conveying roller mounting frame is installed on the transition frame, two rows of transition conveying rollers spaced apart and arranged in parallel front and back are installed on the transition conveying roller mounting frame, a first cross beam is installed above the transition frame, a first press cylinder vertically downward is installed on the first cross beam, a press bar mounting plate is installed on the telescopic shaft of the first press cylinder, and two press bars facing the two rows of transition conveying rollers below are installed on the press bar mounting plate.

[0010] Preferably, the double-circular tube friction conveying mechanism includes a conveying frame, on which are installed a plurality of bearing mounting seats, four parallel and spaced transmission rods are respectively installed on the bearing mounting seats through bearings, and each transmission rod is installed with a friction wheel, wherein the friction wheels on the first transmission rod and the second transmission rod are fitted together to form a first friction conveying channel for the circular tube, and the friction wheels on the third transmission rod and the fourth transmission rod are fitted together to form a second friction conveying channel for the circular tube, a second crossbeam is installed above the conveying frame, a pressing cylinder is vertically installed downward on the second crossbeam, and a pressing roller assembly is installed on the telescopic shaft of the pressing cylinder and is located above the first friction conveying channel and the second friction conveying channel.

[0011] Preferably, the quenching and tempering device includes a frame; a friction transmission power mechanism installed on the frame, the friction transmission power mechanism includes a power output reduction box installed on the frame, a power output motor is installed on the input shaft of the power output reduction box, the output shaft of the power output reduction box is connected to the power output transmission rod, the power output transmission rod is fixed to the frame through a plurality of power output transmission rod bearing mounting seats arranged in parallel and at intervals, a gear shaft is installed at the end of the power output transmission rod, an active output gear is installed on the gear shaft, four synchronous transmission rods are installed on the frame in parallel and at intervals through synchronous transmission rod bearing seats and are located above the power output transmission rod, each synchronous transmission rod is installed with a friction wheel, wherein the friction wheels on the first synchronous transmission rod and the second synchronous transmission rod are fitted to form a first friction transmission channel of the circular tube, the friction wheels on the third synchronous transmission rod and the fourth synchronous transmission rod are fitted to form a second friction transmission channel of the circular tube, and synchronous transmission gears are installed on the four synchronous transmission rods Wheel, the synchronous transmission gear is connected with the active output gear on the gear shaft through a synchronous belt respectively; four pressing roller assemblies are installed in parallel and at intervals above the friction conveying mechanism along the round tube conveying direction, wherein the first pressing roller assembly and the third pressing roller assembly are located above the first friction conveying channel, and the second pressing roller assembly and the fourth pressing roller assembly are located above the first friction conveying channel; a first quenching mechanism, a second quenching mechanism and a tempering mechanism are installed in parallel and at intervals behind the friction conveying mechanism along the round tube conveying direction, wherein the first quenching mechanism is arranged relative to the first friction conveying channel, the second quenching mechanism is arranged relative to the second friction conveying channel, and the tempering mechanism is arranged relative to the first friction conveying channel and the second friction conveying channel at the same time; a tempering cooling water conveying mechanism installed on one side of the tempering mechanism, the tempering cooling water conveying mechanism is connected to the spray pipe in the tempering mechanism; a water collecting tank installed on the frame and located below the friction conveying mechanism, the water collecting tank and the tempering cooling water conveying mechanism are connected by a pipeline.

[0012] Preferably, the first quenching mechanism and the second quenching mechanism have the same structure, both comprising a quenching machine XY moving guide rail, a quenching machine displacement drive motor is installed on one side of the quenching machine XY moving guide rail, the quenching machine body is installed on the quenching machine XY moving guide rail, and a quenching ring is installed at the front end of the quenching machine body, wherein the quenching ring at the front end of the first quenching mechanism is arranged opposite to the first friction conveying channel, and the quenching ring at the front end of the second quenching mechanism is arranged opposite to the second friction conveying channel; the tempering mechanism comprises a tempering machine XY moving guide rail, and a quenching machine displacement drive motor is installed on one side of the tempering machine XY moving guide rail. A tempering machine displacement drive motor is installed, and the tempering machine body is installed on the tempering machine XY moving guide rail. Two tempering rings are installed at the front end of the tempering machine body, which are respectively arranged opposite to the first friction conveying channel and the second friction conveying channel. A spray pipe is installed on one side of each tempering ring. The tempering cooling water delivery mechanism includes a cooling water tank, and a water pump is arranged on one side of the cooling water tank. The water pump is connected to the spray pipe in the tempering mechanism through a water supply pipe, and the water collecting tank is connected to the cooling water tank through a return pipe. The cooling water tank is also connected to an external water source through an external water pipe.

[0013] Preferably, the slow cooling unloading mechanism includes a slow cooling rack, on which are installed a plurality of groups of slow cooling transmission rod bearing seats arranged in parallel and at intervals along the conveying direction of the round tube, four slow cooling transmission rods are installed in parallel and at intervals on the slow cooling rack through the slow cooling transmission rod bearing seats, and each slow cooling transmission rod is installed with a slow cooling friction wheel, wherein the slow cooling friction wheels on the first slow cooling transmission rod and the second slow cooling transmission rod are fitted together to form the first slow cooling friction conveying channel for the round tube, and the slow cooling friction wheels on the third slow cooling transmission rod and the fourth slow cooling transmission rod are fitted together After that, a second slow cooling friction conveying channel for the round tube is formed, and a polishing slow cooling device is installed on the slow cooling frame. The polishing slow cooling device includes four supporting guide rods installed on the slow cooling frame along a square distribution, and a top plate is installed on the top of the supporting guide rod. The movable mounting plate is connected to the supporting guide rod through a guide sleeve, and two groups of upper polishing rollers are installed on the bottom of the movable mounting plate. The two groups of upper polishing rollers are respectively located above the first slow cooling friction conveying channel and the second slow cooling friction conveying channel. The two groups of upper polishing rollers are transmitted through the upper polishing rollers. The upper polishing roller is connected with the moving rod, one end of the upper polishing roller transmission rod is connected with the upper polishing roller driving motor, the lower polishing roller mounting seat is installed on the slow cooling frame, two groups of lower polishing rollers are installed on the lower polishing roller mounting seat and are respectively located below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, the slow cooling frame is also equipped with an upper unloading device, the upper unloading device is installed below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel; the upper unloading device includes a cylinder mounting seat, the cylinder mounting The seat is fixed on the slow cooling rack or the cache rack, the first unloading cylinder mounting inclined plate is mounted on the cylinder mounting seat, the first unloading cylinder is mounted obliquely upward on the first unloading cylinder mounting inclined plate and is located below the first slow cooling friction conveying channel, the first round tube head is mounted on the telescopic shaft of the first unloading cylinder, the second unloading cylinder is vertically mounted upward on the cylinder mounting seat and is located below the second slow cooling friction conveying channel, the second round tube head is mounted on the telescopic shaft of the second unloading cylinder, and the top surface of the second round tube head is set as an inclined surface.

[0014] Preferably, the unloading cache mechanism includes a cache rack, on which a plurality of support rollers are installed along the conveying direction of the round tube and are spaced apart side by side, a top unloading device is installed below the support rollers on the cache rack, and a guide plate biased toward the round tube stacking rack is installed on the end edge of the cache rack.

[0015] The beneficial effects of the dual-channel high-strength round tube induction quenching equipment provided by the present invention are:

[0016] (1) This dual-channel high-strength round tube induction quenching equipment has a reasonable design and simple structure. It can realize automatic loading, material distribution, stable forward advancement, quenching, tempering, slow cooling, surface grinding and unloading of double round tubes. In actual work, it is only necessary to place the round tubes to be loaded on the round tube discharging mechanism, discharge them through the round tube discharging mechanism, and then drop the two round tubes into two lane dropping components with the same structure through the round tube lane dropping conveying mechanism, and then convey the two round tubes to the round tube conveying mechanism installed behind the round tube lane dropping conveying mechanism through the first conveyor belt device in the round tube lane dropping conveying mechanism, and convey the two round tubes forward at the same time through the round tube conveying mechanism, and realize the steady advancement of the double round tubes through the cooperation among the double round tube power propulsion mechanism, the double round tube pressing transition mechanism and the double round tube friction conveying mechanism, and realize the high-frequency quenching and tempering cooling of the double round tubes through the quenching and tempering device; realize the grinding treatment of the surface of the double round tubes after tempering through the slow cooling unloading mechanism, and realize the stable advancement, cooling and unloading of the two round tubes at the same time, with high degree of automation and high efficiency of round tube quenching and tempering.

[0017] (2) The present invention can realize automatic and one-by-one discharging of round tubes through the structural design of the round tube discharging mechanism. The round tube discharging mechanism has a simple structure and fully utilizes the gravity of the round tubes themselves to discharge the tubes one by one. There is no need to use manual labor or a robot, and the discharging speed is fast and the efficiency is high.

[0018] (3) The present invention can realize the separate dropping of round tubes through the structural design of the round tube separate dropping and conveying mechanism, ensuring that two different round tubes are stably dropped into two different round tube conveying channels, thereby improving the efficiency of round tube conveying.

[0019] (4) The present invention can realize the stable and uniform forward propulsion of the double round tubes and improve the quality of double round tube quenching through the structural design of the double round tube power propulsion mechanism, the double round tube material pressing transition mechanism and the double round tube friction conveying mechanism.

[0020] (5) The present invention can realize the stable and uniform forward advancement of the double round tubes through the structural design of the quenching and tempering device, and can simultaneously realize the stable advancement of the two round tubes and the simultaneous quenching, tempering, cooling and other operations, thereby achieving high production efficiency.

[0021] (6) The present invention can achieve grinding treatment on the surface of the double round tubes after tempering and simultaneously realize stable forward cooling and unloading of the two round tubes through the structural design of the slow cooling unloading mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2It is a three-dimensional structural diagram of the round tube unloading mechanism, the round tube channel dropping and conveying mechanism and the round tube conveying mechanism in the present invention.

[0024] Figure 3 It is a front view of the three-dimensional structure of the round tube discharging mechanism of the present invention.

[0025] Figure 4 It is a rear view of the three-dimensional structure of the round tube unloading mechanism in the present invention.

[0026] Figure 5 It is a partial structural diagram when the front baffle plate in the round tube unloading mechanism of the present invention falls to the lowest position.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the round tube channel blanking and conveying mechanism in the present invention.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of the channel blanking assembly in the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the first blanking component in the present invention.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the second blanking assembly in the present invention.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the first synchronous adjustment component in the present invention.

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the first conveyor belt device in the present invention.

[0033] Fig.12 It is a three-dimensional structural schematic diagram of the round tube conveying mechanism in the present invention.

[0034] Fig.13 It is a three-dimensional structural diagram of the double-tube power propulsion mechanism, the double-tube material pressing transition mechanism, the double-tube friction conveying mechanism and the friction conveying power mechanism in the present invention.

[0035] Fig.14 It is a three-dimensional structural schematic diagram of the double-circular tube power propulsion mechanism and the double-circular tube material pressing transition mechanism in the present invention.

[0036] Fig.15 It is a rear view of the three-dimensional structure of the double-tube friction conveying mechanism in the present invention.

[0037] Fig.16 It is a front view of the three-dimensional structure of the friction transmission power mechanism in the present invention.

[0038] Fig.17 It is a rear view of the three-dimensional structure of the friction transmission power mechanism in the present invention.

[0039] Fig.18 It is a three-dimensional structural schematic diagram of the pressing roller assembly in the present invention.

[0040] Fig.19 It is a three-dimensional structural schematic diagram of the quenching and tempering device in the present invention.

[0041] Fig. 20 It is a front view of the internal structure installation stereoscopic structure of the quenching and tempering device in the present invention.

[0042] Fig.21 It is a rear view of the internal structure installation stereoscopic structure of the quenching and tempering device in the present invention.

[0043] Fig. 22 It is a schematic diagram of the three-dimensional structural installation of the first quenching mechanism, the second quenching mechanism and the tempering mechanism in the present invention.

[0044] Fig.23 It is a three-dimensional structural schematic diagram of the slow cooling unloading mechanism, the unloading buffer mechanism and the round tube stacking swing frame in the present invention.

[0045] Fig.24 It is a three-dimensional structural schematic diagram of the slow cooling unloading mechanism in the present invention.

[0046] Fig.25 It is a schematic diagram of the three-dimensional structure of the polishing slow cooling device in the present invention.

[0047] Fig.26 It is a three-dimensional structural schematic diagram of the top unloading device in the present invention.

[0048] Fig. 27 It is a three-dimensional structural schematic diagram of the round tube stacking swing frame in the present invention.

[0049] In the figure: 1. round tube unloading mechanism; 11. unloading rack; 12. steel tube placement bracket; 13. blanking guide plate; 14. strip hole; 15. front moving cross bar; 16. front baffle plate; 17. moving cross bar push-pull cylinder; 18. rear baffle plate mounting cross bar; 19. rear baffle plate;

[0050] 2. Round tube channel blanking conveying mechanism; 21. Blanking machine frame; 22. Channel blanking assembly; 221. Support plate; 222. Wedge-shaped guide frame; 223. First blanking assembly; 2231. First bracket; 2232. First cylinder; 2233. First support plate; 2234. First round tube support block; 2235. First partition plate; 224. Second blanking assembly; 2241. Second bracket; 2242. Second cylinder; 2243. Second support plate; 2244. Second round tube support block; 2245. Third bracket; 22 46. ​​second partition plate; 225. side plate; 226. pull rod; 227. flip plate; 228. central shaft; 229. rear baffle plate; 23. first synchronous adjustment assembly; 231. synchronous drive motor; 232. first gearbox; 233. drive rod; 234. second gearbox; 235. synchronous connecting rod; 236. synchronous lifting worm gear; 237. connecting flange; 24. first conveyor belt device; 241. outer shell; 242. endless conveyor belt; 243. limit baffle plate; 244. support ear;

[0051] 3. round tube conveying mechanism; 31. conveying frame; 32. second synchronous adjustment component; 33. second conveyor belt device;

[0052] 4. Double-tube power propulsion mechanism; 41. Propulsion frame; 42. Gear box; 43. Propulsion motor; 44. Transmission coupling; 45. Support plate; 46. Slide rail; 47. Front mounting frame; 48. Upper conveying roller group adjustment cylinder; 49. Front mounting frame adjustment hand wheel; 410. Front mounting frame adjustment screw rod; 411. Upper conveying roller group; 412. Lower conveying roller group;

[0053] 5. Double-tube pressing material transition mechanism; 51. Transition frame; 52. Transition conveying roller mounting frame; 53. Transition conveying roller; 54. First crossbeam; 55. First pressing material cylinder; 56. Pressing material strip mounting plate; 57. Pressing material strip;

[0054] 6. Double-tube friction conveying mechanism; 61. Conveying frame; 62. Bearing mounting seat; 63. Bearing; 64. Transmission rod; 65. Friction wheel; 66. Second crossbeam; 67. Pressing roller assembly; 671. Pressing cylinder; 672. Pressing roller mounting frame; 673. Universal wheel mounting column; 674. Universal roller; 675. Tube shield; 69. Coupling;

[0055] 7. Quenching and tempering device; 71. Friction transmission power mechanism; 711. Power transmission mounting frame; 712. Power output reduction box; 713. Power output transmission rod bearing mounting seat; 714. Power output transmission rod; 715. Gear shaft; 716. Active output gear; 717. Synchronous belt; 718. Synchronous transmission gear; 719. Synchronous transmission rod; 7110. Synchronous transmission rod bearing seat; 7111. Transmission friction wheel; 7112. Power output motor; 72. First quenching mechanism; 721. Quenching machine Displacement drive motor; 722, quenching machine XY moving guide rail; 723, quenching machine body; 724, quenching ring; 73, second quenching mechanism; 74, tempering mechanism; 741, tempering machine displacement drive motor; 742, tempering machine XY moving guide rail; 743, tempering machine body; 744, tempering ring; 745, spray pipe; 75, tempering cooling water delivery mechanism; 751, cooling water tank; 752, water pump; 753, water supply pipe; 754, water return pipe; 755, external water pipe; 76, outer cover; 77, water collecting tank;

[0056] 8. Slow cooling unloading mechanism; 81. Slow cooling frame; 82. Slow cooling transmission rod bearing seat; 83. Slow cooling transmission rod; 84. Slow cooling friction wheel; 85. Coupling; 86. Polishing slow cooling device; 861. Guide rod; 862. Top plate; 863. Movable mounting plate; 864. Guide sleeve; 865. Adjusting screw rod; 866. Adjusting hand wheel; 867. Upper polishing roller driving motor; 868. Upper polishing roller; 869. Upper polishing roller transmission rod; 8610. Lower polishing roller mounting seat; 8611. Lower polishing roller; 87. Upper top unloading device; 871. Cylinder mounting seat; 872. First unloading cylinder mounting inclined plate; 873. First unloading cylinder; 874. First round tube top head; 875. Second unloading cylinder; 876. Second round tube top head; 88. Unloading guide plate;

[0057] 9. Discharge buffer mechanism; 91. Buffer rack; 92. Support roller; 93. Guide plate;

[0058] 10. Round tube stacking rack; 20. Control center. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary persons in the art without creative work are within the scope of protection of the present invention.

[0060] Embodiment: A dual-channel high-strength round tube induction quenching equipment.

[0061] Reference Figures 1 to 27As shown, a dual-channel high-strength round tube induction quenching equipment comprises:

[0062] Round tube unloading mechanism 1 (refer to Figures 2 to 5 As shown), the round tube unloading mechanism 1 includes a unloading rack 11, on which a plurality of steel tube placing brackets 12 are installed, which are spaced side by side in a transverse direction. The steel tube placing brackets 12 are tilted forward, so that the round tubes placed on the steel tube placing brackets 12 can always roll forward under the action of gravity, so as to facilitate the subsequent round tubes to be loaded one by one under the action of gravity. A plurality of blanking guide plates 13 are installed in front of the steel tube placing brackets 12, which are spaced side by side in a transverse direction. The top of the blanking guide plate 13 is arranged to be tilted forward, so as to facilitate the round tube to slide down naturally after entering the blanking guide plate 13. Each blanking guide plate 13 is provided with a strip hole 14 in the vertical direction, and a front movable cross bar 15 penetrates each blanking guide plate 13 in the transverse direction. The strip hole 14 and the moving cross bar push-pull cylinder 17 are installed in the vertical direction below the front moving cross bar 15 and are connected to the front moving cross bar 15. During actual operation, the front moving cross bar 15 can be driven to move up and down in the strip hole 14 of the blanking guide plate 13 by the moving cross bar push-pull cylinder 17. A plurality of front baffle plates 16 arranged side by side and spaced apart are installed horizontally on the front moving cross bar 15. The function of the front baffle plate 16 is to control the timing of the round tube entering the blanking guide plate 13. A rear baffle plate mounting cross bar 18 is installed on the discharging frame 11 at the oblique rear of the blanking guide plate 13. A plurality of rear baffle plates 19 arranged side by side and spaced apart are installed on the rear baffle plate mounting cross bar 18. The function of the rear baffle plate 19 is to stop the round tube from rolling downward from the steel pipe placing bracket 12. In actual work, the round tubes that need to be quenched are placed on the steel tube placing bracket 12 and blocked by the rear baffle plate 16. When loading is required, the moving crossbar push-pull cylinder 17 drives the front moving crossbar 15 to drive the front baffle plate 16 to move downward. When the front baffle plate 16 is lower than the position of the blanking guide plate 13, the round tubes fall into the subsequent round tube channel blanking conveying mechanism 2 along the blanking guide plate 13 under the action of gravity. When the moving crossbar push-pull cylinder 17 drives the front moving crossbar 15 to drive the front baffle plate 16 to the lowest position, the position of the front baffle plate 16 is lowered. When the rear baffle plate 19 is in position, a round tube on the rear baffle plate 19 is just above the front baffle plate 16, and then the moving cross bar push-pull cylinder 17 drives the front moving cross bar 15 to drive the front baffle plate 16 to move upward and reset, the round tube can be lifted up by the front baffle plate 16 and placed on the blanking guide plate 13. According to this cycle, the round tube can be automatically discharged one by one. Moreover, the round tube discharge mechanism 1 has a simple structure and makes full use of the round tube's own gravity to discharge one by one. There is no need to use manual labor or manipulators, and the discharge speed is fast and the efficiency is high.

[0063] The round tube discharging conveying mechanism 2 installed in front of the round tube discharging mechanism 1 is shown in FIG. Figure 5As shown, the circular tube channel drop conveying mechanism 2 comprises a drop frame 21, on which two channel drop assemblies 22 of the same structure are installed in parallel and at intervals, a first synchronous adjustment assembly 23 is installed between the two channel drop assemblies 22, and a first conveyor belt device 24 is installed above the first synchronous adjustment assembly 23 and located between the two channel drop assemblies 22; wherein the channel drop assemblies 22 are used for the channel drop of two circular tubes, the first synchronous adjustment assembly 23 is used for adjusting the upper and lower positions of the first conveyor belt device 24, and the first conveyor belt device 24 is used for conveying the two circular tubes falling into the channel drop assemblies 22 forward. In actual operation, after the circular tube discharge mechanism 1 discharges, the channel drop assemblies 22 in the circular tube channel drop conveying mechanism 2 can drop the two circular tubes to the corresponding conveying tracks respectively, and then the first conveyor belt device 24 transports the two circular tubes to the circular tube conveying mechanism 3 installed behind the circular tube channel drop conveying mechanism 2.

[0064] Reference Figures 6 to 9As shown, the lane blanking assembly 22 includes a support plate 221, the support plate 221 is mounted on the blanking machine frame 21, the wedge-shaped guide frame 222 is mounted on the support plate 221, the first blanking assembly 223 and the second blanking assembly 224 are installed in parallel and spaced apart on the blanking machine frame 21 and are located behind the support plate 221, the first blanking assembly 223 includes a first bracket 2231, the first bracket 2231 is fixed on the blanking machine frame 21, the first cylinder 2232 is fixed on the first bracket 2231 in the vertical direction, and the first support plate 2233 is fixed on the first bracket 2231. On the telescopic axis of a cylinder 2232, a plurality of first circular tube support blocks 2234 are installed on the first support plate 2233 and are distributed in parallel and at intervals. A V-shaped groove for limiting the circular tube is provided on the top of each first circular tube support block 2234, and an inclined first partition plate 2235 is installed behind the first circular tube support block 2234. During actual operation, the first cylinder 2232 can drive the first support plate 2233 to drive the first circular tube support block 2234 to move up and down, and the V-shaped grooves provided on the tops of the plurality of first circular tube support blocks 2234 form a first blanking limiting channel for the circular tube. The second blanking assembly 224 includes a second bracket 2241, which is fixed on the blanking machine frame 21 and located behind the first bracket 2231. The second cylinder 2242 is fixed on the second bracket 2241 in the vertical direction. The second support plate 2243 is fixed on the telescopic shaft of the second cylinder 2242. A plurality of second round tube support blocks 2244 distributed in parallel and at intervals are installed on the second support plate 2243. A V-shaped groove of a limited round tube is provided on the top of each second round tube support block 2244. A vertically arranged second partition plate 2246 is installed in front of the second round tube support block 2244. A rear baffle 229 is installed at the rear of the second circular tube support block 2244, and the side plate 225 is fixed on the side of the second support plate 2243. The second cylinder 2242 can drive the second support plate 2243 to drive the side plate 225 to move up and down. A central rotating shaft 228 is installed above the first blanking assembly 223 and the second blanking assembly 224. Two symmetrically arranged flip plates 227 are respectively fixed on the left and right sides of the central rotating shaft 228. The two flip plates 227 are connected by multiple connecting rods. The end of the flip plate 227 is hinged to the top of the pull rod 226, and the bottom of the pull rod 226 is hinged to the side plate 225.In actual operation, when the second cylinder 2242 drives the second support plate 2243 to drive the side plate 225 to move downward, the side plate 225 drives the flip plate 227 to rotate around the central rotation axis 228 through the pull rod 226, so that the front end of the flip plate 227 tilts up, and at this time, the round tube unloading mechanism 1 unloads the material, and the round tube is guided by the wedge-shaped guide frame 222 and falls into the first blanking limit channel formed by the V-shaped groove set on the top of the first round tube support block 2234 in the first blanking assembly 223; after the first round tube falls into the first blanking limit channel, the second cylinder 2242 drives the second support plate 2243 to drive the side plate 225 to move downward, and ... The cylinder 2242 drives the second support plate 2243 to drive the side plate 225 to reset. The side plate 225 drives the flip plate 227 to rotate around the central axis 228 through the pull rod 226, so that the flip plate 227 is reset. At this time, the round tube discharge mechanism 1 discharges again, and the round tube falls into the second blanking limit channel formed by the V-shaped groove on the top of the second round tube support block 2244 in the second blanking assembly 224, thereby completing the automatic blanking and separation of the two round tubes, and accurately falling into different limit channels.

[0065] Reference Fig.10 As shown, the first synchronous adjustment component 23 includes a first gearbox 232 fixed on the blanking machine frame 21, two second gearboxes 234 are symmetrically installed on the front and rear sides of the first gearbox 232, and synchronous lifting worm gears 236 are symmetrically installed on the left and right sides of each second gearbox 234. The four synchronous lifting worm gears 236 are distributed in a square shape, and the synchronous drive motor 231 is installed on the input shaft of the first gearbox 232. The output shaft of the first gearbox 232 is connected to the input shaft of the second gearbox 234 through a driving rod 233, and the output shaft of the second gearbox 234 is connected to the synchronous lifting worm gear 236 through a synchronous connecting rod 235. The top of the worm of each synchronous lifting worm gear 236 is installed with a connecting flange 237. During actual operation, the first gearbox 232 is driven to rotate by the synchronous drive motor 231, and the first gearbox 232 drives the two second gearboxes 234 to rotate synchronously. Then, the two second gearboxes 234 can drive the four synchronous lifting worm gears 236 to rise and fall synchronously, and then the first conveyor belt device 24 installed above the first synchronous adjustment component 23 can be adjusted to move up and down stably to meet the transportation requirements of round tubes of different models.

[0066] Reference Fig.11As shown, the first conveyor belt device 24 includes an outer shell 241, and a plurality of lugs 244 are installed at the bottom of the outer shell 241. The outer shell 241 is connected to the connection flange 237 at the top of the synchronous lifting worm gear 236 in the first synchronous adjustment component 23 through the lugs 244. Two parallel and spaced annular conveyor belts 242 are installed on the outer shell 241, and the left and right sides of each annular conveyor belt 242 are correspondingly installed with limit baffles 243. In actual operation, when two round tubes fall into the first drop limiting channel and the second drop limiting channel respectively, that is, they just fall into the two parallel and spaced annular conveyor belts 242, the two continuously circularly running annular conveyor belts 242 can drive the round tubes falling on the annular conveyor belts 242 to move forward, and the limit baffles 243 can limit the round tubes.

[0067] Reference Figure 1 and Fig.11 As shown, the round tube conveying mechanism 3 is installed behind the round tube channel blanking conveying mechanism 2 along the round tube conveying direction, and the round tube conveying mechanism 3 includes a conveying frame 31, on which a second synchronous adjustment component 32 is installed, and a second conveyor belt device 33 is installed on the second synchronous adjustment component 32, wherein the structure of the second synchronous adjustment component 32 is the same as that of the first synchronous adjustment component 23, and the second conveyor belt device 33 is the same as that of the first conveyor belt device 24. In actual operation, the height position of the second conveyor belt device 33 can be stably adjusted by the second synchronous adjustment component 32, and when the round tube enters the annular conveyor belt provided on the second conveyor belt device 33, the annular conveyor belt drives the round tube to continuously move forward.

[0068] Reference Fig.13 and Fig.14As shown, the double-tube power propulsion mechanism 4 includes a propulsion frame 41, a gear box 42 is installed on the propulsion frame 41, a propulsion motor 43 is installed on the input shaft of the gear box 42, a plurality of output shafts are arranged on the front side of the gear box 42, a support plate 45 is installed in front of the gear box 42, two slide rails 46 spaced side by side and arranged vertically downward are installed on the support plate 45, a front mounting frame 47 is installed on the slide rail 46, a front mounting frame adjusting hand wheel 49 is installed on the top of the support plate 45, and the front mounting frame adjusting hand wheel 49 is connected to the front mounting frame 4 through the front mounting frame adjusting screw rod 410. 7, the front mounting frame 47 is equipped with an upper conveying roller group 411 and a lower conveying roller group 412 which are arranged side by side and spaced apart from each other, and the upper conveying roller group 411 and the lower conveying roller group 412 are each provided with two rows of conveying rollers which are spaced apart and distributed in parallel front and back, and the upper conveying roller group 411 and the lower conveying roller group 412 are respectively connected to the output shaft of the gear box 42 through a transmission coupling 44, and an upper conveying roller group adjusting cylinder 48 is vertically downwardly installed on the top of the front mounting frame 47, and the telescopic shaft of the upper conveying roller group adjusting cylinder 48 is connected to the mounting frame of the upper conveying roller group 411. In actual operation, the front mounting frame adjusting hand wheel 49 drives the front mounting frame adjusting screw rod 410 to adjust the position of the front mounting frame 47 in the vertical direction, and then the upper conveying roller group 411 and the lower conveying roller group 412 installed on the front mounting frame 47 can be adjusted in the vertical direction. The upper conveying roller group adjusting cylinder 48 can adjust the spacing between the upper conveying roller group 411 and the lower conveying roller group 412, so as to better clamp the round tube. When the two round tubes are clamped by the upper conveying roller group 411 and the lower conveying roller group 412, the propulsion motor 43 drives the gear box 42 to rotate, and the gear box 42 drives the conveying rollers in the upper conveying roller group 411 and the lower conveying roller group 412 to rotate through the transmission coupling 44, so as to push the two round tubes clamped between the upper conveying roller group 411 and the lower conveying roller group 412 to stably move forward.

[0069] Reference Fig.13 and Fig.15As shown, the double round tube pressing transition mechanism 5 is installed behind the double round tube power propulsion mechanism 4 along the round tube conveying direction, and the double round tube pressing transition mechanism 5 includes a transition frame 51, on which a transition conveying roller mounting frame 52 is mounted, and on which two rows of transition conveying rollers 53 are mounted that are spaced and distributed in parallel in front and back, and a first crossbeam 54 is mounted above the transition frame 51, on which a first pressing cylinder 55 vertically downwardly arranged is mounted, and on the telescopic shaft of the first pressing cylinder 55, a pressing strip mounting plate 56 is mounted, and on the pressing strip mounting plate 56, two pressing strips 57 facing the two rows of transition conveying rollers below are mounted. In actual operation, the first pressing cylinder 55 pushes down the two pressing strips 57 facing the two rows of transition conveying rollers on the pressing strip mounting plate 56, so as to ensure that the two round tubes are stably conveyed forward in the transition conveying rollers 53.

[0070] Reference Fig.15 As shown, the double-tube friction conveying mechanism 6 is installed behind the double-tube pressing transition mechanism 5 along the round tube conveying direction, and the double-tube friction conveying mechanism 5 includes a conveying frame 61, and a plurality of bearing mounting seats 62 are installed on the conveying frame 61, and four parallel and spaced transmission rods 64 are respectively installed on the bearing mounting seats 62 through bearings 63, and each transmission rod 64 is installed with a friction wheel 65, wherein the friction wheels 65 on the first transmission rod 64 and the second transmission rod 64 are fitted to form a first friction conveying channel for the round tube, and the friction wheels 65 on the third transmission rod 64 and the fourth transmission rod 64 are fitted to form a second friction conveying channel for the round tube, and the second cross beam 66 is installed above the conveying frame 61, and the pressing roller assembly 67 is vertically downwardly installed on the second cross beam 66 and is located above the first friction conveying channel and the second friction conveying channel. During actual operation, the double round tubes pass through the double round tube pressing transition mechanism 5 and enter the first friction conveying channel and the second friction conveying channel of the double round tube friction conveying mechanism 6 in parallel respectively. When the friction wheels 65 on the first transmission rod 64 and the second transmission rod 64 rotate, they cooperate with the pressing roller assembly 67 to make the round tubes in the first friction conveying channel move forward stably and at a uniform speed. At the same time, when the friction wheels 65 on the third transmission rod 64 and the fourth transmission rod 64 rotate, they cooperate with the pressing roller assembly 67 to make the round tubes in the second friction conveying channel move forward stably and at a uniform speed.

[0071] Reference Fig.18As shown, in this embodiment, the pressing roller assembly 67 includes a pressing cylinder 671, a pressing roller mounting frame 672 mounted on the telescopic shaft of the pressing cylinder 671, and four universal wheel mounting columns 673 arranged in a square shape and downwardly disposed are mounted on the pressing roller mounting frame 672, a universal roller 674 is mounted at the bottom of each universal wheel mounting column 673, and a round tube shield 675 is mounted between two universal rollers 674 arranged in the longitudinal direction. In actual operation, the pressing cylinder 671 drives the pressing roller mounting frame 672 to press down, so that the universal rollers 674 mounted on the four universal wheel mounting columns 673 arranged in a square shape and downwardly disposed are in contact with the top of the round tube in the first friction conveying channel and the second friction conveying channel, and then cooperate with the rotation of the friction wheel 65, so that the round tube can be continuously and stably moved forward under the action of friction.

[0072] Reference Figures 13 to 22 As shown, the quenching and tempering device 7 includes a friction transmission power mechanism 71, a first quenching mechanism 72, a second quenching mechanism 73, a tempering mechanism 74 and a tempering cooling water transmission mechanism 75.

[0073] Reference Fig.13 , Fig.16 and Fig.17As shown, the friction conveying power mechanism 71 is installed at the rear of the double-tube friction conveying mechanism 6 along the round tube conveying direction, and the friction conveying power mechanism 71 includes a power conveying mounting frame 711, and a power output reduction box 712 is installed at the bottom of the power conveying mounting frame 711, and a power output motor 7112 is installed at the input shaft end of the power output reduction box 712, and the output shaft of the power output reduction box 712 is connected to a power output transmission rod 714, and the power output transmission rod 714 is installed through the power output transmission rod bearing mounting seat 713, and the power output transmission rod bearing mounting seat 713 is installed on the power conveying mounting frame 711, and a gear shaft 715 is installed at the end of the power output transmission rod 714, and an active output gear 716 is installed on the gear shaft 715, and four synchronous transmission rods 719 are installed in parallel and spaced apart on the power conveying The mounting frame 711 is located above the power output transmission rod 714, and synchronous transmission gears 718 are installed on the four synchronous transmission rods 719. The synchronous transmission gears 718 are connected to the active output gears 716 on the gear shaft 715 through synchronous belts 717 respectively. Each synchronous transmission rod 719 is correspondingly connected to the transmission rod 64 in the double-tube friction conveying mechanism 6 through a coupling 69. A transmission friction wheel 7111 is installed on each synchronous transmission rod 719. The transmission friction wheels 7111 on the first synchronous transmission rod 719 and the second synchronous transmission rod 719 are fitted together to form a first friction conveying channel for the round tube. The transmission friction wheels 7111 on the third synchronous transmission rod 719 and the fourth synchronous transmission rod 719 are fitted together to form a second friction conveying channel for the round tube. A pressing roller assembly 67 is correspondingly installed above the first friction conveying channel and the second friction conveying channel. During actual operation, the power output motor 7112 drives the power output reduction box 712 to drive the power output transmission rod 714 to rotate, and the active output gear 716 on the power output transmission rod 714 drives the four synchronous transmission rods 719 to rotate through the synchronous belt 717 and the synchronous transmission gear 718 respectively. The four synchronous transmission rods 719 respectively drive the four transmission rods 64 in the double-tube friction conveying mechanism 6 to rotate. When the friction wheels 65 on the four transmission rods 64 rotate, they cooperate with the pressing roller assembly 67 to make the round tubes in the two friction conveying channels move forward stably and at a uniform speed. At the same time, the transmission friction wheels 7111 in the first friction conveying channel and the second friction conveying channel cooperate with the pressing roller assembly 67 to achieve the stable and uniform forward movement of the double round tubes in the first friction conveying channel and the second friction conveying channel.

[0074] Reference Figure 20 to Figure 22As shown, the first quenching mechanism 72, the second quenching mechanism 73, the tempering mechanism 74 and the tempering cooling water conveying mechanism 75 are installed in parallel and at intervals behind the friction conveying mechanism 71 along the round tube conveying direction, wherein the first quenching mechanism 72 is arranged relative to the first friction conveying channel, the second quenching mechanism 73 is arranged relative to the second friction conveying channel, and the tempering mechanism 73 is arranged relative to both the first friction conveying channel and the second friction conveying channel.

[0075] Reference Fig. 22 As shown, the first quenching mechanism 72 and the second quenching mechanism 73 have the same structure, both including a quenching machine XY moving guide rail 722, a quenching machine displacement drive motor 721 is installed on one side of the quenching machine XY moving guide rail 722, a quenching machine body 723 is installed on the quenching machine XY moving guide rail 722, and a quenching ring 724 is installed at the front end of the quenching machine body 723, wherein the quenching ring 724 at the front end of the first quenching mechanism 72 is arranged opposite to the first friction conveying channel, and the quenching ring 724 at the front end of the second quenching mechanism 73 is arranged opposite to the second friction conveying channel. In actual operation, the quenching machine displacement drive motor 721 can be used to drive the quenching machine XY moving guide rail 722 to adjust the specific position of the quenching machine body 723. During quenching, the quenching machine body 723 contacts the round tube through the quenching ring 724 to achieve high-frequency induction quenching.

[0076] The tempering mechanism 74 includes a tempering machine XY moving guide rail 742, a tempering machine displacement drive motor 741 is installed on one side of the tempering machine XY moving guide rail 742, a tempering machine body 743 is installed on the tempering machine XY moving guide rail 742, and two tempering rings 744 are installed at the front end of the tempering machine body 743, which are respectively arranged opposite to the first friction conveying channel and the second friction conveying channel, and a spray pipe 745 is correspondingly installed on one side of each tempering ring 744. In actual operation, the tempering machine displacement drive motor 741 can drive the tempering machine XY moving guide rail 742 to adjust the specific position of the tempering machine body 743. During tempering, the tempering machine body 743 contacts the round tube through the tempering ring 744 to achieve tempering, and the tempered round tube is continuously sprayed with water for cooling through the spray pipe 745 installed on one side of the tempering ring 744.

[0077] The tempering cooling water delivery mechanism 75 is connected to the spray pipe 745 in the tempering mechanism 74; the water collecting tank 76 is installed below the friction delivery mechanism 71, and the water collecting tank 76 is connected to the tempering cooling water delivery mechanism 75 through a pipeline. The tempering cooling water delivery mechanism 75 includes a cooling water tank 751, and a water pump 752 is arranged on one side of the cooling water tank 751. The water pump 752 is connected to the spray pipe 745 in the tempering mechanism 74 through a water supply pipe 753. The water collecting tank 76 is connected to the cooling water tank 751 through a return pipe 754. The cooling water tank 751 is also connected to an external water source through an external water pipe 755. In actual operation, water can be continuously supplied to the spray pipe 745 through the water pump 752. After the cooling water is collected by the water collecting tank 76, it returns to the cooling water tank 751 through the return pipe 754, so as to realize the recycling of cooling water, and fresh cooling water can be added through the external water pipe 755.

[0078] In this embodiment, outer covers 77 are installed on the outer sides of the friction transmission power mechanism 71, the first quenching mechanism 72, the second quenching mechanism 73, the tempering mechanism 74 and the tempering cooling water delivery mechanism 75, and the outer covers 77 are provided to ensure complete operation.

[0079] Reference Figure 23 to Figure 27As shown, the slow cooling unloading mechanism 8 includes a slow cooling frame 81, on which are installed a plurality of groups of slow cooling transmission rod bearing seats 82 arranged in parallel and spaced along the conveying direction of the round tube, four slow cooling transmission rods 83 are installed in parallel and spaced on the slow cooling frame 81 through the slow cooling transmission rod bearing seats 82, and each slow cooling transmission rod 83 is installed with a slow cooling friction wheel 84, wherein the first slow cooling transmission rod 83 and the slow cooling friction wheel 84 on the second slow cooling transmission rod 83 are fitted together to form the first slow cooling friction conveying channel for the round tube. The third slow cooling transmission rod 83 and the slow cooling friction wheel 84 on the fourth slow cooling transmission rod 83 are fitted together to form a second slow cooling friction conveying channel for the round tube. The slow cooling frame 81 is equipped with a polishing slow cooling device 86. The polishing slow cooling device 86 includes four support guide rods 861 distributed in a square and installed on the slow cooling frame 81. The top of the support guide rod 861 is equipped with a top plate 862. The movable mounting plate 863 is sleeved on the support guide rod 861 through a guide sleeve 864. The center of the top plate 862 is installed There is an adjusting hand wheel 866, and a screw rod 865 is installed at the end of the adjusting hand wheel 866. The bottom of the screw rod 865 is connected to the movable mounting plate 863 through a screw rod pair. In actual work, the working height of the movable mounting plate 863 can be adjusted by adjusting the hand wheel 866, and then the distance between the upper polishing roller 868 and the lower polishing roller 8611 can be adjusted to meet the requirements of polishing different round tube surfaces. Two sets of upper polishing rollers 868 are installed at the bottom of the movable mounting plate 863. They are respectively located above the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, the two groups of upper polishing rollers 868 are connected by an upper polishing roller transmission rod 869, one end of the upper polishing roller transmission rod 869 is connected to the upper polishing roller drive motor 867, the lower polishing roller mounting seat 8610 is installed on the slow cooling frame 81, and the two groups of lower polishing rollers 8611 are installed on the lower polishing roller mounting seat 8610 and are respectively located below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel. During actual operation, the friction conveying mechanism 6 conveys the round tube to the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and respectively enters the polishing channel composed of the lower polishing roller 8611 and the upper polishing roller 868 in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and the upper polishing roller driving motor 867 is used to drive the upper polishing roller 868 to rotate, and the upper polishing roller 868 and the lower polishing roller 8611 cooperate to realize the polishing of the surface of the round tube in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and slowly push the round tube forward in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, so that the round tube is slowly cooled during the forward movement.

[0080] Reference Fig.26As shown, the slow cooling frame 81 is also equipped with an upper unloading device 87, and the upper unloading device 87 is installed below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel; the upper unloading device 87 includes a cylinder mounting seat 871, and the cylinder mounting seat 871 is fixed on the slow cooling frame 81, the first unloading cylinder mounting inclined plate 872 is installed on the cylinder mounting seat 871, the first unloading cylinder 873 is installed obliquely upward on the first unloading cylinder mounting inclined plate 872 and is located below the first slow cooling friction conveying channel, the first round tube head 874 is installed on the telescopic shaft of the first unloading cylinder 873, the second unloading cylinder 875 is vertically installed on the cylinder mounting seat 871 and is located below the second slow cooling friction conveying channel, the second round tube head 876 is installed on the telescopic shaft of the second unloading cylinder 875, and the top surface of the second round tube head 876 is set as an inclined surface. During actual operation, because the first unloading cylinder 873 is arranged to be inclined upward, the first unloading cylinder 873 can lift the round tube in the first slow cooling friction conveying channel and tilt it to one side of the round tube stacking swing rack when pushing up, and then guide it to the round tube stacking swing rack 10 for placement and storage through the unloading guide plate 88 installed on the end edge of the slow cooling rack 81; similarly, the second unloading cylinder 875 lifts the round tube in the first slow cooling friction conveying channel through the second round tube top 876 and tilts it to one side of the round tube stacking swing rack, and then guides it to the round tube stacking swing rack 10 for placement and storage through the unloading guide plate 88.

[0081] Reference Fig. 27 As shown, the unloading buffer mechanism 9 is arranged behind the slow cooling unloading mechanism 8 along the conveying direction of the round tube, and the unloading buffer mechanism 9 includes a buffer frame 91, on which a plurality of support rollers 92 arranged side by side and spaced apart are installed along the conveying direction of the round tube, and a top unloading device 87 is also installed below the support roller 92 on the buffer frame 91, and a guide plate 93 biased toward the round tube stacking swing frame is installed on the end edge of the buffer frame 91. In actual operation, under the propulsion of the slow cooling unloading mechanism 8, the front end of the round tube moves to the support roller 92, and then the top unloading device 87 in the unloading buffer mechanism 9 cooperates with the top unloading device 87 in the slow cooling unloading mechanism 8 to lift the round tube, and then guide the unloading guide plate 88 and the guide plate 93 to the round tube stacking swing frame 10 for placement and storage. The round tube stacking swing frame 10 is installed on one side of the unloading buffer mechanism 9 for storing the finished round tubes after quenching.

[0082] In order to better understand the present invention, the working steps of the present invention are explained as follows:

[0083] (1) The round tube discharging mechanism 1 discharges the materials one by one: the round tubes to be quenched are placed on the steel tube placing bracket 12 and blocked by the rear baffle plate 16. When the material needs to be loaded, the moving crossbar push-pull cylinder 17 drives the front moving crossbar 15 to drive the front baffle plate 16 to move downward. When the front baffle plate 16 is lower than the position of the blanking guide plate 13, the round tubes fall into the subsequent round tube blanking conveying mechanism 2 along the blanking guide plate 13 under the action of gravity. When the moving crossbar push-pull cylinder 17 drives the front moving crossbar 15 to move downward, the front baffle plate 16 moves downward. When the front baffle plate 16 is lower than the position of the blanking guide plate 13, the round tubes fall into the subsequent round tube blanking conveying mechanism 2 along the blanking guide plate 13 under the action of gravity, the round tubes fall into the subsequent round tube blanking conveying mechanism 2 under the action of gravity. When the rod 15 drives the front baffle plate 16 to the lowest position, the position of the front baffle plate 16 is lower than that of the rear baffle plate 19. At this time, a round tube located on the rear baffle plate 19 is just above the front baffle plate 16. Then the moving cross bar push-pull cylinder 17 drives the front moving cross bar 15 to drive the front baffle plate 16 to move upward and reset. The round tube can be lifted up by the front baffle plate 16 and placed on the blanking guide plate 13. According to this cycle, the round tubes can be automatically discharged one by one.

[0084] (2) Material separation and conveying of the round tube discharging mechanism 2: When the round tube in the round tube discharging mechanism 1 is discharged through the material discharging guide plate 13, the second cylinder 2242 drives the second support plate 2243 to drive the side plate 225 to move downward, and the side plate 225 drives the flip plate 227 to rotate around the central rotation axis 228 through the pull rod 226, so that the front end of the flip plate 227 is tilted. At this time, the round tube discharging mechanism 1 discharges the material, and the round tube is guided by the wedge-shaped guide frame 222 and falls into the first material discharging limit channel formed by the V-shaped groove set on the top of the first round tube support block 2234 in the first material discharging assembly 223; the first After the round tube falls into the first blanking limiting channel, the second cylinder 2242 drives the second support plate 2243 to drive the side plate 225 to reset, and the side plate 225 drives the flip plate 227 to rotate around the central shaft 228 through the pull rod 226, so that the flip plate 227 is reset. At this time, the round tube discharge mechanism 1 discharges again, and the round tube falls into the second blanking limiting channel formed by the V-shaped groove set on the top of the second round tube support block 2244 in the second blanking assembly 224 under the guidance of the flip plate 227, so that the two round tubes can be automatically blanked and divided, and fall into different limiting channels accurately. When the two round tubes fall into the first blanking limiting channel and the second blanking limiting channel respectively, that is, they just fall into two parallel and spaced annular conveyor belts 242, the two continuously circularly rotating annular conveyor belts 242 can drive the round tubes falling on the annular conveyor belts 242 to move forward and be transported to the round tube conveying mechanism 3.

[0085] (3) Forward conveying of the round tube conveying mechanism 3: After the round tube enters the annular conveyor belt provided on the second conveyor belt device 33, the two annular conveyor belts provided on the second conveyor belt device 33 can respectively drive the two round tubes to continuously move forward.

[0086] (4) After the two round tubes enter the double round tube power propulsion mechanism 4, they are clamped by the upper conveying roller group 411 and the lower conveying roller group 412 in the double round tube power propulsion mechanism 4, and the propulsion motor 43 drives the gear box 42 to rotate. The gear box 42 drives the conveying rollers in the upper conveying roller group 411 and the lower conveying roller group 412 to rotate through the transmission coupling 44, thereby pushing the two round tubes clamped between the upper conveying roller group 411 and the lower conveying roller group 412 to move forward stably, and then the double round tube pressing transition mechanism 5 and the double round tube friction conveying mechanism 6 are used to stably and uniformly push the double round tubes forward;

[0087] (5) After the double round tubes enter the quenching and tempering device 7, the round tube in the first friction conveying channel passes through the first quenching mechanism 6 and is quenched by the first quenching mechanism 6, and the round tube in the second friction conveying channel passes through the second quenching mechanism 7 and is quenched by the second quenching mechanism 7. When the round tubes after quenching pass through the tempering mechanism 8, the tempering mechanism 8 can simultaneously perform tempering and cooling treatment on the first friction conveying channel and the second friction conveying channel. The tempering cooling water conveying mechanism 9 continuously conveys cooling water to the spray pipe 85 in the tempering mechanism 8. The cooling water is collected by the water collecting tank 4 and then returned to the tempering cooling water conveying mechanism 9, so that the recycling of cooling water can be realized;

[0088] (6) The tempered double round tubes are conveyed to the first slow cooling friction conveying channel and the second slow cooling friction conveying channel of the slow cooling unloading mechanism 8 through the friction conveying mechanism 6, and respectively enter the polishing channel composed of the lower polishing roller 8611 and the upper polishing roller 868 in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and the upper polishing roller 868 is driven to rotate by the upper polishing roller driving motor 867, and the surface of the round tube in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel is polished through the cooperation between the upper polishing roller 868 and the lower polishing roller 8611, and the round tube is slowly pushed forward in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and the round tube is slowly cooled during the forward movement.

[0089] (7) After the round tubes enter the unloading buffer mechanism 9, the round tubes in the first slow cooling friction conveying channel and the second slow cooling friction conveying channel are pushed up and unloaded onto the round tube stacking rack 10 for placement and storage through the lifting unloading device 87 installed in the slow cooling unloading mechanism 8 and the unloading buffer mechanism 9, thereby achieving the grinding treatment of the surface of the double round tubes after tempering, as well as stable promotion of cooling and automatic unloading.

[0090] This dual-channel high-strength round tube induction quenching equipment has a reasonable design, simple structure, high degree of automation and high production efficiency. It can realize automatic loading, material distribution, stable forward advancement, quenching, tempering, slow cooling, surface grinding and unloading of double round tubes. In actual work, it is only necessary to place the round tubes to be loaded on the round tube discharging mechanism 1, discharge the materials through the round tube discharging mechanism 1, and then drop the two round tubes into two divided channel dropping components with the same structure through the round tube divided channel dropping conveying mechanism 2, and then convey the two round tubes to the round tube conveying mechanism 3 installed behind the round tube divided channel dropping conveying mechanism through the first conveyor belt device in the round tube divided channel dropping conveying mechanism 2, and convey the two round tubes forward at the same time through the round tube conveying mechanism 3, and realize the steady advancement of the double round tubes through the cooperation among the double round tube power propulsion mechanism 4, the double round tube pressing transition mechanism 5 and the double round tube friction conveying mechanism 6, and realize the high-frequency quenching and tempering cooling of the double round tubes through the quenching and tempering device 7; realize the grinding treatment of the surface of the double round tube after tempering through the slow cooling unloading mechanism 8, and realize the stable advancement, cooling and unloading of the two round tubes at the same time, with high degree of automation and high efficiency of round tube quenching and tempering.

[0091] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the contents disclosed in the embodiment and the drawings, so any equivalent or modification completed without departing from the spirit disclosed in the present invention shall fall within the scope of protection of the present invention.

Claims

1. A dual-channel high-strength round tube induction quenching equipment, characterized in that include: The round tube unloading mechanism comprises a unloading frame, on which a plurality of steel tube placing brackets which are arranged side by side in a transverse direction and at intervals are installed, and the steel tube placing brackets are arranged tilted forward, and a plurality of blanking guide plates which are arranged side by side in a transverse direction and at intervals are installed on the unloading frame in front of the steel tube placing brackets, and a strip hole is opened on the upper surface of each blanking guide plate in a vertical direction, and a front moving cross bar penetrates through the strip hole of each blanking guide plate in a transverse direction, and a moving cross bar push-pull cylinder is installed below the front moving cross bar in a vertical direction and is connected to the front moving cross bar, and a plurality of front baffle plates which are arranged side by side and at intervals are installed on the upper surface of the front moving cross bar in a transverse direction, and a rear baffle plate mounting cross bar is installed on the unloading frame at an oblique rear of the blanking guide plate, and a plurality of rear baffle plates which are arranged side by side and at intervals are installed on the rear baffle plate mounting cross bar; A round tube channel blanking conveying mechanism installed on the side of the round tube discharge mechanism, the round tube channel blanking conveying mechanism includes a blanking frame, two channel blanking assemblies with the same structure are installed in parallel and at intervals on the blanking frame, a first synchronous adjustment assembly is installed between the two channel blanking assemblies, a first conveyor belt device is installed above the first synchronous adjustment assembly and is located between the two channel blanking assemblies, the channel blanking assembly includes a support plate, the support plate is installed on the blanking frame, the wedge guide frame is installed on the support plate, the first blanking assembly and the second blanking assembly are installed in parallel and at intervals on the blanking frame and are located behind the support plate, the side plate is fixed on the second support plate set in the second blanking assembly, and the second support plate is installed on the vertical On the telescopic shaft of the second cylinder arranged vertically, the second cylinder drives the second support plate to drive the side plates to move up and down, a central rotating shaft is installed above the first blanking assembly and the second blanking assembly, and two symmetrically arranged flip plates are respectively fixed on the left and right sides of the central rotating shaft, and the two flip plates are connected by multiple connecting rods, the end of the flip plate is hinged to the top of the pull rod, and the bottom of the pull rod is hinged to the side plates. When the second cylinder drives the second support plate to drive the side plates to move downward, the side plates drive the flip plates to rotate around the central rotating shaft through the pull rod, so that the front end of the flip plates is tilted; when the second cylinder drives the second support plate to drive the side plates to reset, the side plates drive the flip plates to rotate around the central rotating shaft through the pull rod, so that the flip plates are reset; A round tube conveying mechanism installed behind the round tube channel blanking conveying mechanism along the round tube conveying direction; A double-tube power propulsion mechanism installed behind the tube conveying mechanism along the tube conveying direction; A double round tube material pressing transition mechanism installed behind the double round tube power propulsion mechanism along the round tube conveying direction; A double-tube friction conveying mechanism installed behind the double-tube pressing transition mechanism along the conveying direction of the round tube; A quenching and tempering device installed behind the double-tube friction conveying mechanism along the conveying direction of the tube; A double round tube friction conveying mechanism installed behind the quenching and tempering device along the round tube conveying direction; A slow cooling unloading mechanism installed behind the double-tube friction conveying mechanism along the conveying direction of the tube; A discharge buffer mechanism installed behind the slow cooling discharge mechanism along the conveying direction of the round tube; as well as A round tube stacking swing rack installed on one side of the unloading buffer mechanism.

2. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The first blanking assembly includes a first bracket, which is fixed on the blanking machine frame, a first cylinder is fixed on the first bracket in a vertical direction, a first support plate is fixed on the telescopic axis of the first cylinder, a plurality of first circular tube support blocks distributed in parallel and spaced are installed on the first support plate, a V-shaped groove of a limited circular tube is provided on the top of each first circular tube support block, and a first inclined partition is installed behind the first circular tube support block; the second blanking assembly includes a second bracket, which is fixed on the blanking machine frame and located behind the first bracket, a second cylinder is fixed on the second bracket in a vertical direction, a second support plate is fixed on the telescopic axis of the second cylinder, a plurality of second circular tube support blocks distributed in parallel and spaced are installed on the second support plate, a V-shaped groove of a limited circular tube is provided on the top of each second circular tube support block, a vertically arranged second partition is installed in front of the second circular tube support block, a rear baffle is installed behind the second circular tube support block, and side plates are fixed on sides of the second support plate.

3. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The first synchronous adjustment component includes a first gearbox fixed on the blanking machine frame, two second gearboxes are symmetrically installed on the front and rear sides of the first gearbox, and synchronous lifting worm gears are symmetrically installed on the left and right sides of each second gearbox. The synchronous drive motor is installed on the input shaft of the first gearbox, and the output shaft of the first gearbox is connected to the input shaft of the second gearbox through a driving rod, and the output shaft of the second gearbox is connected to the synchronous lifting worm gear through a synchronous connecting rod. The top of the worm of each synchronous lifting worm gear is installed with a connecting flange; the first conveyor belt device includes an outer shell, and a plurality of support ears are installed at the bottom of the outer shell, and the outer shell is connected to the connecting flange at the top of the synchronous lifting worm gear in the first synchronous adjustment component through the support ears. Two parallel and spaced annular conveyor belts are installed on the outer shell, and limit baffles are correspondingly installed on the left and right sides of each annular conveyor belt.

4. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The round tube conveying mechanism comprises a conveying frame, a second synchronous adjustment component is installed on the conveying frame, and a second conveyor belt device is installed on the second synchronous adjustment component.

5. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The double-tube power propulsion mechanism includes a propulsion frame, a gear box is installed on the propulsion frame, a propulsion motor is installed on the input shaft of the gear box, and multiple output shafts are arranged on the front side of the gear box, a support plate is installed in the front of the gear box, two slide rails are installed on the support plate, which are spaced side by side and vertically downward, and the front mounting frame is installed on the slide rail, and a front mounting frame adjusting hand wheel is installed on the top of the support plate, and the front mounting frame adjusting hand wheel is connected to the back of the front mounting frame through a front mounting frame adjusting screw rod, and an upper conveying roller group and a lower conveying roller group arranged side by side and spaced up and down are installed on the front mounting frame, and the upper conveying roller group and the lower conveying roller group are both provided with two rows of conveying rollers distributed in parallel and spaced front and back, and the upper conveying roller group and the lower conveying roller group are respectively connected to the output shaft of the gear box through a transmission coupling, and the upper conveying roller group adjusting cylinder is vertically downwardly installed on the top of the front mounting frame, and the telescopic shaft of the upper conveying roller group adjusting cylinder is connected to the mounting frame of the upper conveying roller group.

6. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The double-tube pressing transition mechanism includes a transition frame, a transition conveying roller mounting frame is installed on the transition frame, two rows of transition conveying rollers spaced apart and parallel to each other are installed on the transition conveying roller mounting frame, a first crossbeam is installed above the transition frame, a first pressing cylinder vertically downward is installed on the first crossbeam, a pressing bar mounting plate is installed on the telescopic shaft of the first pressing cylinder, and two pressing bars facing the two rows of transition conveying rollers below are installed on the pressing bar mounting plate.

7. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The double-circular tube friction conveying mechanism includes a conveying frame, on which a plurality of bearing mounting seats are installed, four transmission rods arranged in parallel and at intervals are respectively installed on the bearing mounting seats through bearings, and each transmission rod is installed with a friction wheel, wherein the friction wheels on the first transmission rod and the second transmission rod are fitted together to form a first friction conveying channel for the circular tube, and the friction wheels on the third transmission rod and the fourth transmission rod are fitted together to form a second friction conveying channel for the circular tube, a second crossbeam is installed above the conveying frame, a pressing cylinder is vertically installed downward on the second crossbeam, and a pressing roller assembly is installed on the telescopic shaft of the pressing cylinder and is located above the first friction conveying channel and the second friction conveying channel.

8. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The quenching and tempering device comprises a frame; a friction transmission power mechanism installed on the frame, the friction transmission power mechanism comprises a power output reduction box installed on the frame, a power output motor is installed on the input shaft of the power output reduction box, the output shaft of the power output reduction box is connected to the power output transmission rod, the power output transmission rod is fixed to the frame through a plurality of power output transmission rod bearing mounting seats arranged in parallel and at intervals, a gear shaft is installed at the end of the power output transmission rod, an active output gear is installed on the gear shaft, four synchronous transmission rods are installed on the frame in parallel and at intervals through synchronous transmission rod bearing seats and are located above the power output transmission rod, each synchronous transmission rod is installed with a friction wheel, wherein the friction wheels on the first synchronous transmission rod and the second synchronous transmission rod are fitted to form a first friction transmission channel of the round tube, and the friction wheels on the third synchronous transmission rod and the fourth synchronous transmission rod are fitted to form a second friction transmission channel of the round tube, and synchronous transmission gears are installed on the four synchronous transmission rods. The synchronous transmission gears are respectively connected to the active output gears on the gear shaft through synchronous belts; four pressing roller assemblies are installed in parallel and at intervals above the friction conveying mechanism along the round tube conveying direction, wherein the first pressing roller assembly and the third pressing roller assembly are located above the first friction conveying channel, and the second pressing roller assembly and the fourth pressing roller assembly are located above the first friction conveying channel; a first quenching mechanism, a second quenching mechanism and a tempering mechanism are installed in parallel and at intervals behind the friction conveying mechanism along the round tube conveying direction, wherein the first quenching mechanism is arranged relative to the first friction conveying channel, the second quenching mechanism is arranged relative to the second friction conveying channel, and the tempering mechanism is arranged relative to the first friction conveying channel and the second friction conveying channel at the same time; a tempering cooling water conveying mechanism installed on one side of the tempering mechanism, and the tempering cooling water conveying mechanism is connected to the spray pipe in the tempering mechanism; a water collecting tank installed on the frame and located below the friction conveying mechanism, and the water collecting tank is connected to the tempering cooling water conveying mechanism through a pipeline.

9. The dual-channel high-strength round tube induction quenching equipment according to claim 8, characterized in that: The first quenching mechanism and the second quenching mechanism have the same structure, both of which include a quenching machine XY moving guide rail, a quenching machine displacement drive motor is installed on one side of the quenching machine XY moving guide rail, the quenching machine body is installed on the quenching machine XY moving guide rail, and a quenching ring is installed at the front end of the quenching machine body, wherein the quenching ring at the front end of the first quenching mechanism is arranged opposite to the first friction conveying channel, and the quenching ring at the front end of the second quenching mechanism is arranged opposite to the second friction conveying channel; the tempering mechanism includes a tempering machine XY moving guide rail, and a The tempering machine displacement drive motor, the tempering machine body is installed on the tempering machine XY moving guide rail, and two tempering rings are installed at the front end of the tempering machine body, which are respectively arranged opposite to the first friction conveying channel and the second friction conveying channel, and a spray pipe is installed on one side of each tempering ring; the tempering cooling water delivery mechanism includes a cooling water tank, and a water pump is arranged on one side of the cooling water tank. The water pump is connected to the spray pipe in the tempering mechanism through a water supply pipe, and the water collecting tank is connected to the cooling water tank through a return pipe. The cooling water tank is also connected to an external water source through an external water pipe.

10. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The slow cooling unloading mechanism comprises a slow cooling frame, on which a plurality of groups of slow cooling transmission rod bearing seats are installed in parallel and spaced along the conveying direction of the round tube, four slow cooling transmission rods are installed in parallel and spaced on the slow cooling frame through the slow cooling transmission rod bearing seats, and each slow cooling transmission rod is installed with a slow cooling friction wheel, wherein the first slow cooling transmission rod and the slow cooling friction wheel on the second slow cooling transmission rod are fitted together to form the first slow cooling friction conveying channel for the round tube, and the slow cooling friction wheels on the third slow cooling transmission rod and the fourth slow cooling transmission rod are fitted together to form The second slow cooling friction conveying channel for the round tube is provided, and a polishing slow cooling device is installed on the slow cooling frame, and the polishing slow cooling device includes four supporting guide rods installed on the slow cooling frame along a square distribution, and a top plate is installed on the top of the supporting guide rod, and a movable mounting plate is connected to the supporting guide rod through a guide sleeve, and two groups of upper polishing rollers are installed on the bottom of the movable mounting plate, and the two groups of upper polishing rollers are respectively located above the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, and the two groups of upper polishing rollers are connected by an upper polishing roller transmission rod The upper polishing roller transmission rod is connected, one end of the upper polishing roller transmission rod is connected to the upper polishing roller driving motor, the lower polishing roller mounting seat is installed on the slow cooling frame, two groups of lower polishing rollers are installed on the lower polishing roller mounting seat and are respectively located below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel, the slow cooling frame is also equipped with an upper unloading device, the upper unloading device is installed below the first slow cooling friction conveying channel and the second slow cooling friction conveying channel; the upper unloading device includes a cylinder mounting seat, the cylinder mounting seat Fixed on the slow cooling rack or the cache rack, the first unloading cylinder mounting inclined plate is mounted on the cylinder mounting seat, the first unloading cylinder is mounted obliquely upward on the first unloading cylinder mounting inclined plate and is located below the first slow cooling friction conveying channel, the first round tube head is mounted on the telescopic shaft of the first unloading cylinder, the second unloading cylinder is mounted vertically upward on the cylinder mounting seat and is located below the second slow cooling friction conveying channel, the second round tube head is mounted on the telescopic shaft of the second unloading cylinder, and the top surface of the second round tube head is set to be an inclined surface.

11. The dual-channel high-strength round tube induction quenching equipment according to claim 1, characterized in that: The unloading cache mechanism includes a cache frame, on which a plurality of support rollers are installed along the conveying direction of the round tubes and are spaced apart from each other. An upper unloading device is installed below the support rollers on the cache frame, and a guide plate biased toward the round tube stacking swing frame is installed on the end edge of the cache frame.

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