A device for homogenizing heat treatment of a monolithic frame component of a mining truck

Abstract

The application discloses a kind of mining truck frame integral component homogenization heat treatment processing device, belong to heat treatment processing technical field, it includes tempering furnace and trolley, the trolley is arranged in tempering furnace inside;Through the high-temperature gas of rotating heat exchange cylinder and heat preservation cover cylinder heat exchange, process can be scraped off the impurities attached to the surface of heat exchange cylinder by scraper, simultaneously missing gear drive activity ring reciprocating slip, make the occlusion plate in the inside of impurity removal pipe interpenetration sliding, make the through hole on occlusion plate and the misalignment alignment of impurity removal pipe lumen, realize the intermittent opening and closing control of impurity removal pipeline, so that the impurities scraped off can be smoothly carried by airflow via impurity removal pipe into collection box, and finally high-temperature airflow after heat exchange is transported to gas guide groove by gas conveying pipe, so that airflow is uniformly sprayed from bottom to top, cooperates with the lateral radiation heat of burner, forms the compound heating system of up-down cooperation, improves the uniformity of temperature field in tempering furnace, and ensures the long-term stability of heat exchange efficiency.

Description

Technical Field

[0001] This invention relates to the field of heat treatment processing technology, specifically to a heat treatment processing device for homogenizing the integral components of a mining truck frame. Background Technology

[0002] Mining trucks, also known as off-highway dump trucks, are heavy-duty transportation equipment specifically designed for open-pit mines. They are not permitted to drive on public roads and are primarily used for transporting ore and stripped soil. The truck frame is the core load-bearing structure of the entire vehicle. It typically employs a cast-welded integrated box-type welded structure, made of low-alloy high-strength steel, and consists of left and right longitudinal beams, multiple crossbeams, front and rear supports, and a lifting base. The frame provides the installation reference for the power unit, suspension, and cargo box, directly determining the overall reliability of the machine. It requires finite element simulation optimization and weld flaw detection to adapt to the high-frequency alternating impact conditions in mines. As the core load-bearing component of mining dump trucks, the truck frame is large and heavy. Overall heat treatment is a crucial process to ensure the mechanical performance and service life of the frame.

[0003] In existing heat treatment operations, fresh air needs to be continuously introduced into the furnace to regulate the furnace atmosphere, assist in furnace heat exchange, and ensure the smooth progress of the tempering process. However, the temperature difference between the new airflow and the furnace working temperature is extremely large, which can easily cause a sudden drop in local furnace temperature and drastic fluctuations in overall furnace temperature, severely damaging the uniformity of the temperature field inside the furnace. The traditional solution is to use heat exchange or waste heat recovery structures to heat the supplied airflow. However, after long-term operation, impurities are easily attached and scale problems occur on the heat exchange area, leading to a continuous decline in heat exchange efficiency and further aggravating problems such as furnace temperature imbalance and uneven heating.

[0004] Based on this, the present invention designs a heat treatment processing device for homogenizing the integral components of a mining truck frame to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a heat treatment processing device for homogenizing the overall components of a mining truck frame, in order to solve the problems mentioned in the background art, such as the sudden drop in local furnace temperature and drastic fluctuation in overall furnace temperature caused by the gas supply airflow not being effectively preheated, and the easy accumulation of scale when using heat exchange or waste heat recovery structures to preheat the gas flow, which leads to a continuous decrease in heat exchange efficiency, affecting the preheating of the gas flow and causing furnace temperature imbalance.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A homogenization heat treatment processing device for an integral component of a mining truck frame includes a tempering furnace, an extension hood, and a trolley. The trolley is set inside the tempering furnace. Multiple burners are fixedly installed at equal intervals on the inner walls of both sides of the tempering furnace. A connecting rod is rotatably connected to one side of the tempering furnace via a bearing. A door panel is rotatably installed on the tempering furnace via the connecting rod. A drive mechanism is set below the tempering furnace. A fan is fixedly installed above the tempering furnace. An mounting frame is fixedly connected to the side of the fan above the tempering furnace.

[0008] A collection box is fixedly connected to one side of the mounting frame above the tempering furnace. A heat insulation cover is fixedly connected to the mounting frame. A scraper is fixedly connected to the inner wall of the heat insulation cover. A heat exchange cylinder is rotatably installed inside the heat insulation cover via a bearing. The outer wall of the heat exchange cylinder is in contact with the scraper. A connecting pipe is rotatably connected to one end of the heat exchange cylinder via a rotary joint. A driven wheel is fixedly connected to the other end of the heat exchange cylinder. A conveying pipe is rotatably connected to the side of the driven wheel on the heat exchange cylinder via a rotary joint.

[0009] A working motor is provided on one side of the heat exchange cylinder. The working motor is fixedly connected to one side of the mounting bracket. A connecting shaft is connected to the output shaft of the working motor. A missing gear is fixedly installed at one end of the connecting shaft. A driving wheel is fixedly connected to the connecting shaft. A toothed belt is installed on both the driving wheel and the driven wheel. A movable ring is sleeved on the missing gear. A rack is fixedly connected to the inner walls of the two opposite sides of the movable ring.

[0010] A sealing plate is fixedly connected to one side of the movable ring, and an opening is provided on one side of the sealing plate. A U-shaped rod is fixedly connected to the other side of the movable ring. A push plate is fixedly connected to one end of the U-shaped rod. Universal wheels are fixedly installed at the four corners below the trolley. A groove is provided below the trolley, and an internal threaded sleeve is fixedly connected to the trolley within the groove. A sliding groove is provided inside the trolley, and an interlocking groove is provided at both ends of the sliding groove on the top of the trolley.

[0011] The trolley is provided with multiple air guide slots at equal intervals between two fitting slots. A cylinder is fixedly installed on one side of the sliding slot. A movable frame is slidably arranged inside the sliding slot. Rollers are rotatably installed on both sides of the movable frame through bearings, and the rollers are slidably arranged in the fitting slot. An opening slot is provided on the movable frame. Two fixing pins are fixedly connected inside the opening slot. A movable plate is slidably connected inside the opening slot, and one side of the movable plate is fixedly connected to the movable end of the cylinder. Two inclined top slots are provided on the movable plate, and the fixing pins are slidably engaged with the inclined top slots.

[0012] The extension cover is fixedly connected to the tempering furnace and located above the drive mechanism. A guide groove is provided on the side of the extension cover that extends into the tempering furnace. Multiple fixed shafts are fixedly connected at equal intervals inside the extension cover. An auxiliary electric push rod is fixedly installed on the side of the extension cover located on the fixed rod. A forked frame is fixedly connected to the movable end of the auxiliary electric push rod. Multiple transverse grooves are provided at equal intervals on the forked frame.

[0013] Multiple I-shaped blocks are slidably connected in the guide groove. The narrow part of the I-shaped block slides in the guide groove and fits against the groove wall. The thicker ends on both sides of the I-shaped block abut against the extension cover wall. A temperature sensor is fixedly connected to one side of the I-shaped block, and a U-shaped plate is fixedly connected to the other side of the I-shaped block. Adjustment grooves are opened on both sides of the U-shaped plate.

[0014] A hinge rod is rotatably connected to the fixed rod via a bearing. The hinge rod is located at the U-shaped groove of the U-shaped plate. One end of the hinge rod is fixedly connected to a push pin, which slides with the adjusting groove. The other end of the hinge rod is fixedly connected to a connecting pin, which slides with the transverse groove.

[0015] As a further embodiment of the present invention, the driving mechanism includes a driving motor and a hollow rod. The driving motor is fixedly installed on one side of the tempering furnace, and the hollow rod is fixedly connected inside the tempering furnace and corresponds to the position of the driving motor. The hollow rod is slidably disposed in a groove, and a lead screw is rotatably connected inside the hollow rod through a bearing. One end of the lead screw is fixedly connected to the output shaft of the driving motor, and the lead screw is threadedly engaged with an internal thread sleeve, which slides inside the hollow rod.

[0016] As a further embodiment of the present invention, an air supply pipe is fixedly connected above the fan, an exhaust pipe is fixedly connected to one side of the fan, one end of the exhaust pipe passes through the tempering furnace and the other end is fixedly connected to a cover, and one end of the air supply pipe is fixedly connected to the heat insulation cover.

[0017] As a further embodiment of the present invention, a waste discharge pipe is fixedly connected to one side of the collection box, and one end of the waste discharge pipe is connected to the heat insulation cover. A main electric push rod is fixedly installed on the other side of the collection box. An opening is provided on the side of the collection box near the movable end of the main electric push rod, and a fixed rod is rotatably connected to the bottom of the opening through a bearing. A guide plate is fixedly connected to the fixed rod. A traction arm is fixedly connected to one end of the fixed rod, and a traction pin is fixedly connected to one end of the traction arm. A push plate is fixedly connected to the movable end of the main electric push rod. An inclined groove is provided on the push plate, and the traction pin slides in cooperation with the inclined groove.

[0018] As a further embodiment of the present invention, the sealing plate passes through the discharge pipe and is slidably connected to the discharge pipe, and one end of the U-shaped rod connected to the push plate passes through the wall of the collection box and is slidably connected to the collection box. The push plate slides inside the collection box and fits against the inner wall of the collection box.

[0019] As a further embodiment of the present invention, the mounting bracket is fixedly connected to a fixing plate between the collection box and the working motor. A guide cavity is provided in the fixing plate. The connecting shaft is rotatably connected to the fixing plate through a bearing. The movable ring slides in the guide cavity and fits against the cavity wall. The gear meshes with the rack.

[0020] As a further embodiment of the present invention, the door panel is provided with connecting grooves on both sides, and the trolley is fixedly connected to two brackets at the corresponding positions of the connecting grooves. A pin is fixedly connected to the top of the bracket, and the pin is slidably engaged with the connecting groove.

[0021] As a further embodiment of the present invention, an air pump is fixedly installed on the side of the mounting bracket near the connecting pipe, the connecting pipe is connected to the air pump, a static pressure chamber is fixedly connected to one end of the conveying pipe, and multiple gas supply pipes are fixedly connected at equal intervals below the static pressure chamber. One end of the gas supply pipe is connected to the tempering furnace and the position of the gas supply pipe corresponds to the gas guide groove.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. This invention continuously draws high-temperature gas from the tempering furnace using a blower and sends it into the insulation hood. During this process, the working motor drives the driving wheel to rotate via the connecting shaft, and the driven wheel and heat exchange cylinder rotate at a constant speed inside the insulation hood via a toothed belt drive. Simultaneously, an air pump on one side continuously delivers a stable airflow into the heat exchange cylinder, thus continuously exchanging heat between the rotating heat exchange cylinder and the high-temperature gas inside the insulation hood. While the heat exchange cylinder rotates, the scraper remains in close contact with the outer wall of the heat exchange cylinder, continuously scraping and cleaning impurities adhering to the surface of the heat exchange cylinder. This effectively prevents impurities from accumulating and covering the heat exchange surface of the heat exchange cylinder, preventing heat exchange efficiency degradation and ensuring that the heat exchange cylinder maintains high-efficiency and stable heat exchange performance over a long period. At the same time, the gear rotates synchronously and continuously with the connecting shaft. Through alternating meshing with the racks on both sides of the inner wall of the movable ring, it drives the movable ring to reciprocate linearly along the guide cavity, thereby driving the sealing plate to reciprocate and slide inside the impurity discharge pipe. The system utilizes the alternating switching of the openings on the sealing plate and the cavity of the waste discharge pipe to achieve intermittent opening and closing control of the pipeline. This allows for both the closure of the waste discharge pipe during the core heat exchange stage and the automatic opening of the waste discharge pipe. This enables various impurities scraped off by the scraper to be smoothly guided into the collection box by the airflow inside the insulation hood, achieving simultaneous heat exchange and slag removal. Finally, the high-temperature airflow after heat exchange is introduced into the static pressure chamber through the delivery pipe for pressure stabilization and uniform flow. It is then transported to the air guide slot at the bottom of the trolley through multiple gas delivery pipes, allowing the hot airflow to be evenly sprayed from below the trolley frame components. This works in conjunction with the lateral radiant heat from the burners on the side wall of the tempering furnace to form a composite heating system that significantly improves the uniformity of the temperature field inside the tempering furnace, effectively eliminates the low-temperature blind zone at the bottom of the trolley, reduces the risk of deformation of the trolley frame components due to uneven heating, and simultaneously ensures the long-term stability of heat exchange efficiency.

[0024] 2. In this invention, when the movable ring reciprocates via the gear-driven mechanism, the movable ring synchronously drives the U-shaped rod and the pusher plate to slide. The pusher plate then moves within the collection box, sweeping and collecting the impurities that have fallen into the box. Afterward, the main electric pusher on one side of the collection box is activated, rapidly pushing the pusher plate forward. This causes the inclined groove on the pusher plate to slide relative to the traction pin. The inclined surface of the groove guides the traction pin, causing it to deflect and swing the traction arm. Simultaneously, the traction arm, through the fixed rod, drives the guide plate to flip, thus releasing the blockage at the opening of the collection box. The guide plate then discharges the impurities, achieving continuous processing from collection to concentration and discharge, avoiding frequent manual downtime for cleaning and improving processing efficiency.

[0025] 3. This invention uses a drive motor to rotate a lead screw, which drives the internal threaded sleeve to slide smoothly axially along the inside of a hollow rod. This allows the trolley to move smoothly outward with the help of casters. During the trolley's outward movement, the pin at the top of the trolley bracket continuously pushes against the connecting groove walls on both sides of the door panel, causing the door panel to gradually flip open around the connecting rod. This allows the trolley to move smoothly out of the tempering furnace. Finally, the cylinder is activated, pushing the movable plate to slide along the opening groove. During this process, the inclined top groove on the movable plate pushes the fixing pin, causing the fixing pin to move the entire movable frame upward. This causes the roller to lift the entire trolley frame components, increasing the trolley's height. The gap between the bottom of the frame and the trolley platform facilitates subsequent handling and lifting. By activating the auxiliary electric push rod, the fork frame can be pushed to slide up and down inside the extension cover. During the process, multiple transverse slots on the fork frame can push the corresponding connecting pins, causing multiple hinge rods to deflect synchronously around the fixed axis. This allows the push pin at one end of the hinge rod to slide along the adjustment slot and gradually push against the wall of the adjustment slot, causing the U-shaped plate to drive the I-shaped block. The I-shaped block then moves the temperature sensor along the guide slot, thereby adjusting the installation position and monitoring point of each temperature sensor, avoiding the problem of large data deviation in traditional fixed-point temperature measurement. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0028] Figure 2 This is a schematic cross-sectional view of the tempering furnace of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the thermal insulation cover of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the heat exchange cylinder of the present invention;

[0031] Figure 5 This is a schematic cross-sectional view of the collection box and fixing plate of the present invention;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the trolley of the present invention;

[0033] Figure 7 This is a schematic cross-sectional view of the movable frame structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the guide plate of the present invention;

[0035] Figure 9 This is a schematic diagram of the separation structure of the extension cover and the auxiliary electric push rod of the present invention.

[0036] The attached diagram lists the components represented by each number as follows:

[0037] 1. Tempering furnace; 101. Extension hood; 2. Cart; 3. Burner; 4. Connecting rod; 5. Door panel; 6. Drive mechanism; 601. Drive motor; 602. Hollow rod; 603. Lead screw; 7. Fan; 701. Air supply pipe; 702. Air exhaust pipe; 703. Cover body; 8. Mounting frame; 9. Collection box; 10. Insulation cover cylinder; 11. Scraper; 12. Heat exchange cylinder; 13. Connecting pipe; 14. Driven wheel; 15. Conveying pipe; 16. Working motor; 17. Connecting shaft; 18. Gear missing; 19. Drive wheel; 20. Toothed belt; 21. Movable ring; 22. Rack; 23. Sealing plate; 24. Through port; 25. U-shaped rod; 26. Pusher plate; 27. Universal wheel; 28. Groove; 29. ​​Internal threaded sleeve; 30. Slide groove; 31. 31. Fitting groove; 32. Air guide groove; 33. Cylinder; 34. Movable frame; 35. Roller; 36. Opening groove; 37. Fixing pin; 38. Movable plate; 39. Inclined top groove; 40. Waste discharge pipe; 41. Main electric push rod; 42. Fixing rod; 43. Guide plate; 44. Traction arm; 45. Traction pin; 46. Push plate; 47. Inclined groove; 48. Fixing plate; 49. Guide cavity; 50. Connecting groove; 51. Bracket; 52. Pin; 53. Air pump; 54. Static pressure chamber; 55. Air supply pipe; 56. Guide groove; 57. Fixing shaft; 58. Auxiliary electric push rod; 59. Fork frame; 60. Transverse groove; 61. I-shaped block; 62. Temperature sensor; 63. U-shaped plate; 64. Adjusting groove; 65. Hinge rod; 66. Push pin; 67. Connecting pin. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-9 The present invention provides a technical solution:

[0040] A homogenization heat treatment device for an integral component of a mining truck frame includes a tempering furnace 1, an extension hood 101, and a trolley 2. The trolley 2 is disposed inside the tempering furnace 1. Multiple burners 3 are fixedly installed at equal intervals on the inner walls of both sides of the tempering furnace 1. A connecting rod 4 is rotatably connected to one side of the tempering furnace 1 via a bearing. A door panel 5 is rotatably mounted on the tempering furnace 1 via the connecting rod 4. Connecting grooves 50 are opened on both sides of the door panel 5. Two brackets 51 are fixedly connected to the trolley 2 at positions corresponding to the connecting grooves 50. A pin 52 is fixedly connected to the top of the bracket 51, and the pin 52 slides in engagement with the connecting groove 50. When the trolley 2 slides outward, the pin 52 at the top of the bracket 51 can continuously push the groove walls of the connecting grooves 50 on both sides of the door panel 5. By utilizing the sliding engagement between the pin 52 and the connecting groove 50, a continuous deflection thrust is generated on the door panel 5, driving the door panel 5 to smoothly flip outward around the connecting rod 4 and open, thereby releasing the blocking limit and providing sufficient passage space for the trolley 2 to move smoothly out of the tempering furnace 1.

[0041] A blower 7 is fixedly installed above the tempering furnace 1. An air supply pipe 701 is fixedly connected above the blower 7. An exhaust pipe 702 is fixedly connected to one side of the blower 7. One end of the exhaust pipe 702 passes through the tempering furnace 1 and the other end is fixedly connected to a cover 703. A mounting frame 8 is fixedly connected above the tempering furnace 1 to one side of the blower 7. An insulation cover 10 is fixedly connected to the mounting frame 8. One end of the air supply pipe 701 is fixedly connected to the insulation cover 10. A collection box 9 is fixedly connected above the tempering furnace 1 to one side of the mounting frame 8. A waste discharge pipe 40 is fixedly connected to one side of the collection box 9, and one end of the waste discharge pipe 40 is connected to the insulation cover 10.

[0042] A main electric push rod 41 is fixedly installed on the other side of the collection box 9. The collection box 9 has an opening on the side near the movable end of the main electric push rod 41, and a fixed rod 42 is rotatably connected to the bottom of the opening through a bearing. A guide plate 43 is fixedly connected to the fixed rod 42. A traction arm 44 is fixedly connected to one end of the fixed rod 42, and a traction pin 45 is fixedly connected to one end of the traction arm 44. A push plate 46 is fixedly connected to the movable end of the main electric push rod 41. An inclined groove 47 is opened on the push plate 46, and the traction pin 45 slides through the inclined groove 47.

[0043] During operation, the blower 7 continuously draws high-temperature gas from inside the tempering furnace 1 through the cover 703 at the end of the exhaust pipe 702 and delivers the high-temperature gas to the interior of the insulation shroud 10. Through the expansion and guiding effect of the cover 703, the suction range of the high-temperature gas can be increased, avoiding local gas accumulation. The gas is then delivered into the insulation shroud 10 through the air supply pipe 701. The impurity discharge pipe 40 can stably guide impurities into the collection box 9, thereby achieving centralized collection of impurities. Then, by activating the main electric push rod 41, the main electric push rod 41 pushes the push plate 46 to slide horizontally. Utilizing the sliding guide cooperation between the inclined groove 47 on the push plate 46 and the traction pin 45, the traction pin 45 drives the traction arm 44 to swing as a whole. During the swing of the traction arm 44, the guide plate 43 is driven to rotate and flip synchronously through the fixed rod 42, so that the guide plate 43, which originally blocked the opening of the collection box 9, is quickly opened, releasing the sealing limit on the port of the collection box 9, and thus achieving centralized discharge of impurities through the guide plate 43.

[0044] A scraper 11 is fixedly connected to the inner wall of the heat insulation cover 10. A heat exchange cylinder 12 is rotatably installed inside the heat insulation cover 10 via a bearing. The outer wall of the heat exchange cylinder 12 is in contact with the scraper 11. A connecting pipe 13 is rotatably connected to one end of the heat exchange cylinder 12 via a rotary joint. A driven wheel 14 is fixedly connected to the other end of the heat exchange cylinder 12. A conveying pipe 15 is rotatably connected to the side of the driven wheel 14 on the heat exchange cylinder 12 via a rotary joint. A working motor 16 is provided on one side of the heat exchange cylinder 12. The working motor 16 is fixedly connected to one side of the mounting frame 8. A fixing plate 48 is fixedly connected between the mounting frame 8 and the collecting box 9 and the working motor 16. A guide cavity 49 is opened in the fixing plate 48. A connecting shaft 17 is connected to the output shaft of the working motor 16. The connecting shaft 17 is rotatably connected to the fixing plate 48 via a bearing. A driving wheel 19 is fixedly connected to the connecting shaft 17. A toothed belt 20 is installed on both the driving wheel 19 and the driven wheel 14.

[0045] During operation, the working motor 16 can drive the heat exchange cylinder 12 to rotate through the cooperation of the drive wheel 19, toothed belt 20 and driven wheel 14, so that the heat exchange cylinder 12 can be in uniform contact with the high temperature gas. During the process, the scraper 11 can scrape the outer wall of the heat exchange cylinder 12 to clean the impurities attached to the surface of the heat exchange cylinder 12, effectively preventing the accumulation of impurities and covering the heat exchange wall of the heat exchange cylinder 12.

[0046] A missing gear 18 is fixedly installed at one end of the connecting shaft 17. A movable ring 21 is sleeved on the missing gear 18. The movable ring 21 slides in the guide cavity 49 and fits against the cavity wall. A rack 22 is fixedly connected to the inner walls on both sides of the movable ring 21. The missing gear 18 and the rack 22 mesh with each other. A sealing plate 23 is fixedly connected to one side of the movable ring 21. An opening 24 is opened on one side of the sealing plate 23. The sealing plate 23 passes through the discharge pipe 40 and is slidably connected to the discharge pipe 40. A U-shaped rod 25 is fixedly connected to the other side of the movable ring 21. A pusher plate 26 is fixedly connected to one end of the U-shaped rod 25. The end of the U-shaped rod 25 connected to the pusher plate 26 passes through the wall of the collection box 9 and is slidably connected to the collection box 9. The pusher plate 26 slides inside the collection box 9 and fits against the inner wall of the collection box 9.

[0047] During operation, the missing gear 18 rotates synchronously with the connecting shaft 17. The alternating meshing of the missing gear 18 and the inner rack 22 of the movable ring 21 drives the movable ring 21 to make stable reciprocating linear sliding within the guide cavity 49. During this process, the guide cavity 49 guides and limits the movable ring 21, preventing accidental tilting or displacement, thus ensuring the smooth movement of the sealing plate 23 and the pusher plate 26. The sealing plate 23 reciprocates and slides within the discharge pipe 40. By switching between the misalignment and alignment of the opening 24 on the sealing plate 23 and the cavity of the discharge pipe 40, intermittent opening and closing control of the discharge pipe 40 is achieved. During the heat exchange operation, the sealing plate 23 seals the discharge pipe 40, allowing high-temperature gas to temporarily remain within the insulation shroud 10. Afterward, the opening 24 on the sealing plate 23 gradually aligns with the cavity of the discharge pipe 40.

[0048] A drive mechanism 6 is provided below the tempering furnace 1. The drive mechanism 6 includes a drive motor 601 and a hollow rod 602. The drive motor 601 is fixedly installed on one side of the tempering furnace 1. The hollow rod 602 is fixedly connected inside the tempering furnace 1 and corresponds to the position of the drive motor 601. A lead screw 603 is rotatably connected inside the hollow rod 602 through a bearing. One end of the lead screw 603 is fixedly connected to the output shaft of the drive motor 601.

[0049] Universal casters 27 are fixedly installed at the four corners of the trolley 2. A groove 28 is provided under the trolley 2. The hollow rod 602 is slidably disposed in the groove 28. The trolley 2 is fixedly connected to the internal threaded sleeve 29 in the groove 28. The screw 603 is threadedly engaged with the internal threaded sleeve 29. The internal threaded sleeve 29 slides inside the hollow rod 602. The trolley 2 can be driven to move in the tempering furnace 1 by rotating the screw 603 through the drive motor 601.

[0050] The trolley 2 has a sliding groove 30 inside. A fitting groove 31 is connected to both ends of the sliding groove 30 on the top of the trolley 2. Multiple air guide grooves 32 are equally spaced between the two fitting grooves 31 on the trolley 2. A cylinder 33 is fixedly installed on one side of the sliding groove 30. A movable frame 34 is slidably arranged inside the sliding groove 30. Rollers 35 are rotatably installed on both sides of the movable frame 34 via bearings, and the rollers 35 are slidably arranged within the fitting grooves 31. An opening groove 36 is opened on the movable frame 34. Two fixing pins 37 are fixedly connected inside the opening groove 36. A movable plate 38 is slidably connected inside the opening groove 36, and one side of the movable plate 38 is fixedly connected to the movable end of the cylinder 33. Two inclined top grooves 39 are opened on the movable plate 38, and the fixing pins 37 slide in engagement with the inclined top grooves 39.

[0051] The extension cover 101 is fixedly connected to the tempering furnace 1 and located above the drive mechanism 6. A guide groove 56 is provided on one side of the extension cover 101 that extends into the tempering furnace 1. Multiple fixed shafts 57 are fixedly connected at equal intervals inside the extension cover 101. A secondary electric push rod 58 is fixedly installed on one side of the extension cover 101 near the fixed rod 42. A fork frame 59 is fixedly connected to the movable end of the secondary electric push rod 58. Multiple transverse grooves 60 are provided at equal intervals on the fork frame 59. Multiple I-shaped blocks 61 are slidably connected within the guide groove 56. The narrower part of each I-shaped block 61 slides within the guide groove 56 and fits against the groove wall. The thicker ends of both sides of the I-shaped block 61 abut against the wall of the extension cover 101. A temperature sensor 62 is fixedly connected to one side of each I-shaped block 61, and a temperature sensor 62 is fixedly connected to the other side of each I-shaped block 61. A U-shaped plate 63 is provided, with adjustment grooves 64 on both sides of the U-shaped plate 63. A hinge rod 65 is rotatably connected to the fixed rod 42 via a bearing. The hinge rod 65 is located at the U-shaped groove of the U-shaped plate 63. One end of the hinge rod 65 is fixedly connected to a push pin 66, which slides with the adjustment groove 64. The other end of the hinge rod 65 is fixedly connected to a connecting pin 67, which slides with the transverse groove 60. An air pump 53 is fixedly installed on the side of the mounting frame 8 near the connecting pipe 13. The connecting pipe 13 is connected to the air pump 53. One end of the conveying pipe 15 is fixedly connected to a static pressure chamber 54. Multiple gas supply pipes 55 are fixedly connected at equal intervals below the static pressure chamber 54. One end of the gas supply pipe 55 is connected to the tempering furnace 1, and the position of the gas supply pipe 55 corresponds to the gas guide groove 32.

[0052] During operation, the lead screw 603 is located inside the hollow rod 602 and the internal threaded sleeve 29, while the internal threaded sleeve 29 is slidably fitted inside the hollow rod 602, so that the hollow rod 602 and the internal threaded sleeve 29 can protect and isolate the lead screw 603. During the tempering heating operation, the air pump 53 continuously delivers a stable airflow into the heat exchange cylinder 12 through the connecting pipe 13. The hot airflow, after being fully heated by heat exchange in the heat exchange cylinder 12, is then delivered to the air guide slot 32 above the trolley 2 through the air delivery pipe 55, so that the high-temperature airflow is ejected from the bottom upwards, working in conjunction with the lateral radiant heat of the burner 3 to balance the internal temperature field of the tempering furnace 1 and improve the situation of insufficient heating at the bottom of the components and uneven overall heating.

[0053] Working principle of this invention:

[0054] During heat treatment, the burners 3 inside the tempering furnace 1 radiate heat to the frame components on the trolley 2 by combustion through external gas. During the process, the fan 7 at the top of the tempering furnace 1 continuously draws out the high-temperature gas inside the tempering furnace 1 through the exhaust pipe 702 and the end cover 703, and sends the gas into the heat insulation cover 10 through the air supply pipe 701. At the same time, the working motor 16 on one side of the mounting frame 8 runs continuously, drives the drive wheel 19 to rotate through the connecting shaft 17, and drives the driven wheel 14 through the toothed belt 20, so that the heat exchange cylinder 12 rotates inside the heat insulation cover 10.

[0055] During the rotation of the heat exchange cylinder 12, the outer wall of the heat exchange cylinder 12 is always in close contact with the scraper 11 inside the heat insulation cover cylinder 10, thereby scraping away the impurities attached to the surface of the heat exchange cylinder 12. Meanwhile, the air pump 53 on one side of the heat exchange cylinder 12 can deliver a stable airflow into the heat exchange cylinder 12 through the connecting pipe 13, thereby completing the heat exchange with the high-temperature gas when the heat exchange cylinder 12 rotates. After the heat exchange is completed, the high-temperature airflow is smoothly introduced into the static pressure chamber 54 through the conveying pipe 15 at the end of the heat exchange cylinder 12. After being stabilized and evenly distributed by the static pressure chamber 54, it is then delivered to the air guide groove 32 on the surface of the trolley 2 through multiple air supply pipes 55 arranged at equal intervals at the bottom of the static pressure chamber 54, so that the airflow is sprayed upward from the bottom of the trolley frame components, forming a composite heating system with the burner 3 in the tempering furnace 1 working together from the top and bottom.

[0056] By activating the auxiliary electric push rod 58, the fork frame 59 can be pushed to slide within the extension cover 101. During this process, multiple transverse grooves 60 on the fork frame 59 can push the corresponding connecting pins 67, causing multiple hinge rods 65 to deflect synchronously around the fixed axis 57. This allows the push pin 66 at one end of the hinge rod 65 to slide along the adjustment groove 64 and gradually push against the groove wall of the adjustment groove 64, causing the U-shaped plate 63 to drive the I-shaped block 61. The I-shaped block 61 then drives the temperature sensor 62 to slide along the guide groove 56, thereby adjusting the installation position and monitoring point of each temperature sensor 62 to detect the internal temperature of the tempering furnace 1 in real time.

[0057] During this process, the missing gear 18 driven by the working motor 16 rotates synchronously and continuously with the connecting shaft 17. Through alternating meshing with the rack 22 on both sides of the movable ring 21, the movable ring 21 is driven to reciprocate linearly within the guide cavity 49 of the fixed plate 48. The moving movable plate 38 can drive the sealing plate 23 to reciprocate and slide inside the discharge pipe 40. By switching the misalignment and alignment between the opening 24 on the sealing plate 23 and the cavity of the discharge pipe 40, the intermittent opening and closing control of the discharge pipe 40 is realized. During the heat exchange operation, the sealing plate 23 seals the discharge pipe 40, allowing the high-temperature gas to temporarily remain in the insulation cover 10. Afterward, the opening 24 on the sealing plate 23 gradually aligns with the cavity of the discharge pipe 40.

[0058] Meanwhile, the pusher plate 26 also moves away from the position of the discharge pipe 40, so that the impurities scraped out inside the insulation cover cylinder 10 can fall into the collection box 9 for temporary storage under the influence of the internal airflow. Then, the movable ring 21 drives the sealing plate 23 to slide and shift again, cutting off the passage of the discharge pipe 40, and simultaneously drives the U-shaped rod 25 and the pusher plate 26 to slide in the opposite direction, so that the pusher plate 26 pushes the impurities temporarily stored in the collection box 9 in a concentrated manner. Then, the main electric push rod 41 on one side of the collection box 9 is activated, so that the main electric push rod 41 quickly pushes the pusher plate 46 to move, so that the inclined groove 47 on the pusher plate 46 slides relative to the traction pin 45. The inclined guide effect of the inclined groove 47 drives the traction pin 45, causing the traction pin 45 to drive the traction arm 44 to deflect and swing.

[0059] Meanwhile, the traction arm 44 can simultaneously drive the guide plate 43 to flip through the fixed rod 42, thereby releasing the blockage at the opening of the collection box 9. The guide plate 43 is used to discharge impurities. After the cleaning operation is completed, the main electric push rod 41 retracts and resets, driving the push plate 46 to slide in the opposite direction, thereby causing the guide plate 43 to re-seal the opening of the collection box 9. After the heat treatment is completed, the drive motor 601 is started to rotate the screw 603, thereby driving the internal threaded sleeve 29 to slide smoothly along the inside of the hollow rod 602, thereby allowing the trolley 2 to move smoothly outward with the help of the casters 27.

[0060] During the outward movement of the trolley 2, the pin 52 at the top of the bracket 51 continuously pushes against the groove walls of the connecting groove 50 on both sides of the door panel 5, thereby causing the door panel 5 to deflect around the connecting rod 4 and gradually flip outward to open, allowing the trolley 2 to move smoothly out of the tempering furnace 1. Finally, the cylinder 33 is activated, causing the cylinder 33 to push the movable plate 38 to slide along the opening groove 36. During this process, the inclined top groove 39 on the movable plate 38 can push the fixing pin 37, causing the fixing pin 37 to drive the movable frame 34 to move upward as a whole, so that the roller 35 moves out of the fitting groove 31, lifting the frame components as a whole, increasing the gap between the bottom of the frame and the platform of the trolley 2, thereby facilitating subsequent handling and lifting.

Claims

1. A heat treatment device for homogenizing integral components of a mining truck frame, comprising a tempering furnace (1), an extension hood (101), and a trolley (2), characterized in that: The trolley (2) is set inside the tempering furnace (1). Multiple burners (3) are fixedly installed at equal intervals on the inner walls of both sides of the tempering furnace (1). A connecting rod (4) is rotatably connected to one side of the tempering furnace (1) via a bearing. A door panel (5) is rotatably installed on the tempering furnace (1) via the connecting rod (4). A drive mechanism (6) is set below the tempering furnace (1). A fan (7) is fixedly installed above the tempering furnace (1). An mounting bracket (8) is fixedly connected to the side of the fan (7) above the tempering furnace (1). A collection box (9) is fixedly connected above the tempering furnace (1) on one side of the mounting frame (8). A heat insulation cover (10) is fixedly connected on the mounting frame (8). A scraper (11) is fixedly connected to the inner wall of the heat insulation cover (10). A heat exchange cylinder (12) is rotatably installed inside the heat insulation cover (10) through a bearing. The outer wall of the heat exchange cylinder (12) is in contact with the scraper (11). A connecting pipe (13) is rotatably connected to one end of the heat exchange cylinder (12) through a rotary joint. A driven wheel (14) is fixedly connected to the other end of the heat exchange cylinder (12). A conveying pipe (15) is rotatably connected to one side of the driven wheel (14) on the heat exchange cylinder (12) through a rotary joint. A working motor (16) is provided on one side of the heat exchange cylinder (12). The working motor (16) is fixedly connected to one side of the mounting bracket (8). A connecting shaft (17) is connected to the output shaft of the working motor (16). A missing gear (18) is fixedly installed at one end of the connecting shaft (17). A driving wheel (19) is fixedly connected to the connecting shaft (17). A toothed belt (20) is installed on both the driving wheel (19) and the driven wheel (14). A movable ring (21) is sleeved on the missing gear (18). A rack (22) is fixedly connected to the inner walls of the two opposite sides of the movable ring (21). A sealing plate (23) is fixedly connected to one side of the movable ring (21), and a through opening (24) is provided on one side of the sealing plate (23). A U-shaped rod (25) is fixedly connected to the other side of the movable ring (21). A pusher plate (26) is fixedly connected to one end of the U-shaped rod (25). Universal wheels (27) are fixedly installed at the four corners below the trolley (2). A groove (28) is provided below the trolley (2), and an internal threaded sleeve (29) is fixedly connected to the trolley (2) in the groove (28). A sliding groove (30) is provided inside the trolley (2), and a fitting groove (31) is provided above the trolley (2) at both ends of the sliding groove (30). The trolley (2) is provided with multiple air guide slots (32) at equal intervals between two fitting slots (31). A cylinder (33) is fixedly installed on one side of the sliding groove (30). A movable frame (34) is slidably arranged inside the sliding groove (30). Rollers (35) are rotatably installed on both sides of the movable frame (34) through bearings. The rollers (35) are slidably arranged in the fitting slot (31). An opening slot (36) is provided on the movable frame (34). Two fixing pins (37) are fixedly connected inside the opening slot (36). A movable plate (38) is slidably connected inside the opening slot (36). One side of the movable plate (38) is fixedly connected to the movable end of the cylinder (33). Two inclined top slots (39) are provided on the movable plate (38). The fixing pins (37) and the inclined top slots (39) are slidably engaged. The extension cover (101) is fixedly connected to the tempering furnace (1) and located above the drive mechanism (6). A guide groove (56) is provided on one side of the extension cover (101) that extends into the tempering furnace (1). Multiple fixed shafts (57) are fixedly connected at equal intervals inside the extension cover (101). An auxiliary electric push rod (58) is fixedly installed on one side of the extension cover (101) located on the fixed rod (42). A fork frame (59) is fixedly connected to the movable end of the auxiliary electric push rod (58). Multiple transverse grooves (60) are provided at equal intervals on the fork frame (59). Multiple I-shaped blocks (61) are slidably connected in the guide groove (56). The narrow part of the I-shaped block (61) slides in the guide groove (56) and fits against the groove wall. The thick ends of the I-shaped block (61) abut against the wall of the extension cover (101). A temperature sensor (62) is fixedly connected to one side of the I-shaped block (61), and a U-shaped plate (63) is fixedly connected to the other side of the I-shaped block (61). Adjustment grooves (64) are opened on both sides of the U-shaped plate (63). A hinge rod (65) is rotatably connected to the fixed rod (42) via a bearing. The hinge rod (65) is located at the U-shaped groove of the U-shaped plate (63). One end of the hinge rod (65) is fixedly connected to a push pin (66), and the push pin (66) slides with the adjusting groove (64). The other end of the hinge rod (65) is fixedly connected to a connecting pin (67), and the connecting pin (67) slides with the transverse groove (60).

2. The heat treatment device for homogenizing integral components of a mining truck frame according to claim 1, characterized in that: The drive mechanism (6) includes a drive motor (601) and a hollow rod (602). The drive motor (601) is fixedly installed on one side of the tempering furnace (1). The hollow rod (602) is fixedly connected inside the tempering furnace (1) and corresponds to the position of the drive motor (601). The hollow rod (602) is slidably disposed in the groove (28), and a lead screw (603) is rotatably connected inside the hollow rod (602) through a bearing. One end of the lead screw (603) is fixedly connected to the output shaft of the drive motor (601). The lead screw (603) is threadedly engaged with an internal threaded sleeve (29), and the internal threaded sleeve (29) slides inside the hollow rod (602).

3. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 1, characterized in that: An air supply pipe (701) is fixedly connected above the blower (7), and an exhaust pipe (702) is fixedly connected to one side of the blower (7). One end of the exhaust pipe (702) passes through the tempering furnace (1) and the end is fixedly connected to a cover (703). One end of the air supply pipe (701) is fixedly connected to the heat insulation cover (10).

4. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 1, characterized in that: A waste discharge pipe (40) is fixedly connected to one side of the collection box (9), and one end of the waste discharge pipe (40) is connected to the heat insulation cover (10). A main electric push rod (41) is fixedly installed on the other side of the collection box (9). An opening is provided on the side of the collection box (9) near the movable end of the main electric push rod (41), and a fixed rod (42) is rotatably connected to the bottom of the opening through a bearing. A guide plate (43) is fixedly connected to the fixed rod (42). A traction arm (44) is fixedly connected to one end of the fixed rod (42). A traction pin (45) is fixedly connected to one end of the traction arm (44). A push plate (46) is fixedly connected to the movable end of the main electric push rod (41). An inclined groove (47) is provided on the push plate (46). The traction pin (45) slides with the inclined groove (47).

5. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 4, characterized in that: The sealing plate (23) passes through the discharge pipe (40) and is slidably connected to the discharge pipe (40). The U-shaped rod (25) is connected to one end of the push plate (26) through the wall of the collection box (9) and is slidably connected to the collection box (9). The push plate (26) slides inside the collection box (9) and fits against the inner wall of the collection box (9).

6. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 1, characterized in that: The mounting bracket (8) is fixedly connected to the collection box (9) and the working motor (16) by a fixing plate (48). The fixing plate (48) has a guide cavity (49). The connecting shaft (17) is rotatably connected to the fixing plate (48) through a bearing. The movable ring (21) slides in the guide cavity (49) and fits against the cavity wall. The gear (18) meshes with the rack (22).

7. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 1, characterized in that: The door panel (5) has connecting grooves (50) on both sides. The trolley (2) is fixedly connected to two brackets (51) at the corresponding positions of the connecting grooves (50). The top of the brackets (51) is fixedly connected to a pin (52), and the pin (52) slides with the connecting grooves (50).

8. The homogenization heat treatment processing device for integral components of a mining truck frame according to claim 1, characterized in that: An air pump (53) is fixedly installed on the side of the mounting bracket (8) near the connecting pipe (13). The connecting pipe (13) is connected to the air pump (53). A static pressure chamber (54) is fixedly connected to one end of the conveying pipe (15). Multiple gas delivery pipes (55) are fixedly connected at equal intervals below the static pressure chamber (54). One end of the gas delivery pipe (55) is connected to the tempering furnace (1), and the position of the gas delivery pipe (55) corresponds to the gas guide groove (32).

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