Railway wheel machining quenching platform

Abstract

The application discloses a quenching table for railway wheel machining, which comprises a quenching table body, the quenching table body is arranged in the form of a polygonal frame body, and every two adjacent outer sides of the quenching table body are respectively provided with a first protective frame and a second protective frame; a gas injection frame body and a water injection mechanism are arranged in the first protective frame in an up-down mode, and a rotating mechanism is arranged in the second protective frame; a lifting supporting mechanism is arranged in the quenching table body, and a lower protective mechanism is arranged above the lifting mechanism; three groups of upper protective mechanisms are arranged above the lower protective mechanism, and the upper protective mechanisms are connected with the water injection mechanism; the water injection mechanism comprises a supporting frame two, a plurality of fixed plates are arranged in the supporting frame two in an up-down mode, a plurality of groups of nozzle assemblies and connecting assemblies are arranged on the lower surface of the fixed plates, and auxiliary deflection assemblies are arranged on the upper surface of the fixed plates. The application can effectively improve the cooling uniformity of the rim in the radial direction of the wheel body, avoid that the cooling liquid is sprayed onto the web plate and the hub surface, and improve the quenching effect of the wheel body.

Description

Technical Field

[0001] This invention relates to the field of rail transit equipment manufacturing technology, and in particular to a quenching table for processing railway wheels. Background Technology

[0002] Railway wheels are key load-bearing components of the running gear of rail vehicles, and their quality directly affects the train's operational safety, passenger comfort, and operating costs. Railway wheels mainly consist of three parts: the rim, the hub, and the spokes. During the quenching process, the rim is primarily subjected to quenching treatment. The rim itself comprises three parts: the flange (raised edge), the tread (main rolling surface), and the inner side of the rim (guiding and supporting surface).

[0003] In the entire wheel manufacturing process, heat treatment, especially the quenching process, is the core step that determines the final mechanical properties of the wheel (such as hardness, strength, toughness, wear resistance, and fatigue life). With the rapid development of high-speed railways and heavy-haul freight railways in my country, the performance requirements for railway wheels are becoming increasingly stringent. The new generation of wheels needs to possess higher strength / toughness matching, more uniform distribution of mechanical properties, and superior resistance to contact fatigue and wear. Achieving these high-performance indicators largely depends on the precision and stability of the quenching process. Most existing quenching tables use fixed-position water spray pipes or nozzles to cool the rotating wheel tread (rolling surface) and rim. Due to inherent deviations in water pressure and flow rate distribution within the spray area, coupled with significant differences in heat dissipation conditions and heat capacity at different parts of the wheel (such as the rim root, spokes, and hub) during rotation, inconsistent cooling rates are easily generated. This uneven cooling leads to uneven microstructural transformation (different mixing ratios of martensite, bainite, and pearlite) and residual stress distribution within the wheel, resulting in large hardness fluctuations, increased risk of quenching deformation, and even cracking. The uniformity of circumferential and radial hardness in the final finished wheel is difficult to guarantee, severely impacting service life and driving safety.

[0004] During the quenching process of wheel rims, in order to ensure the water spraying effect on the rim surface, it is inevitable that water sprayed from the nozzle will splash onto the spokes, thus affecting the structure and performance of the wheel spokes. However, many wheel manufacturing standards clearly stipulate that water must not enter the spokes during wheel rim quenching.

[0005] A search revealed that patent document CN110777241A discloses a railway wheel cooling device, cooling method, and manufacturing method. The device includes a quenching table and multiple spray guns evenly arranged circumferentially. Each spray gun includes a water outlet panel and a water inlet branch pipe. The water outlet panel has large and small nozzles of different diameters. The small nozzles are controlled by a single branch pipe, while the large nozzles are divided into upper and lower parts, each controlled by a different branch pipe. This allows for convenient adjustment of the cooling water intensity sprayed onto the wheel, improving the cooling uniformity of the wheel rim in both the radial and axial directions. The cooling method uses this device to perform heat treatment cooling on the wheel during manufacturing, effectively enhancing the uniformity of wheel rim hardness and improving wheel performance. The manufacturing method uses the same cooling method to perform heat treatment cooling on the wheel during manufacturing, producing wheels with high rim hardness uniformity.

[0006] When the aforementioned water outlet panel sprays water to cool the wheel rim, the coolant will splash onto the surface of the wheel spokes, reducing the quenching effect of the wheel. Summary of the Invention

[0007] The purpose of this invention is to provide a quenching table for railway wheel processing, which can effectively improve the cooling uniformity of the wheel rim in the radial direction of the wheel body, avoid coolant spraying onto the spokes and hub surfaces, and improve the quenching effect of the wheel body.

[0008] The present invention adopts the following technical solution: A quenching table for processing railway wheels is characterized in that it includes a quenching table body, which is arranged in the form of a polygonal frame, and a first protective frame and a second protective frame are respectively arranged on each two adjacent outer sides of the quenching table body. The first protective frame is equipped with a jet frame and a water spraying mechanism at the top and bottom. The outer end of the jet frame is equipped with an air outlet frame, which includes a vertical frame and an inclined frame. The inclined frame faces the upper surface of the wheel rim. The second protective frame is equipped with a rotating mechanism; the quenching table body is equipped with a lifting support mechanism, and a lower protective mechanism is installed above the lifting mechanism; above the lower protective mechanism are three sets of upper protective mechanisms that can be combined to form a ring cover. The water spraying mechanism includes a second support frame, and an upper protective mechanism is set on the upper surface of the second support frame. The second support frame drives the upper protective mechanism to merge and form an annular cover to prevent the coolant from contacting the spokes. The support frame 2 has several fixed plates installed on the upper and lower surfaces. The lower surface of the fixed plates has several sets of nozzle assemblies that can adjust the spray angle between the coolant and the rim tread and the rim flange, as well as connecting components for connecting the nozzle assemblies and the fixed plates. The upper surface of the fixed plates has auxiliary deflection components that help adjust the angle of the nozzle assemblies.

[0009] Optionally, the first protective frame is also equipped with a drive device for driving the jet frame and water spray mechanism to slide horizontally. The second protective frame is also equipped with a drive device for driving the rotating mechanism to slide horizontally, and a drive device for driving the wheel body to rotate is provided on the outside of the rotating mechanism.

[0010] Optionally, the lifting support mechanism includes a partition and a fixed frame. The partition is fixedly connected to the quenching table body by several rods. The fixed frame is fixedly installed on the lower surface of the partition. A hydraulic lifting device is installed inside the fixed frame. The output end of the hydraulic lifting device is equipped with a hydraulic lifting rod and several evenly distributed support rods. The hydraulic lifting rod and the support rods both pass through the partition and are in sliding fit. A placement plate is fixedly installed on the upper end face of the hydraulic lifting rod. Several connecting rods are distributed on the circumference of the placement plate. The connecting rods are fixedly fitted with the placement plate and the support rods below.

[0011] Optionally, the lower protective mechanism includes a waterproof ring, with several ear plates distributed on the inner wall of the waterproof ring. A support shaft passes through the ear plates, and the support shaft is fixed to the upper end face of the connecting rod two and slides with the ear plates. A spring three, which is sleeved on the outside of the support shaft, is fixedly connected between the ear plates and the connecting rod two. The upper end of the waterproof ring is provided with an inclined surface that matches the lower wall surface of the wheel rim.

[0012] Optionally, the upper protective mechanism includes an arc-shaped plate and a support frame three, with the support frame three located on the upper end face of the support frame two and extending through the outer side of the jet frame. The arc-shaped plate is adapted to the rim of the wheel body. The lower end of the arc-shaped plate is provided with an inclined surface, which is adapted to the upper wall of the rim. After the three sets of arc-shaped plates are combined, they form a complete ring. After the complete ring is lowered, the inclined surface fits into the upper wall of the rim. A connecting rod 1 is fixedly installed on the outer circumference of the arc plate, and a support plate 2 is fixedly installed at the outer end of the connecting rod 1. The support plate 2 is installed inside the support frame 3. The outer side of the second support plate is provided with an inclined surface, and the inner wall of the third support frame is provided with a mating surface. The inclined surface of the second support plate contacts the mating surface and slides together.

[0013] Optionally, the surface of the support plate two is provided with several sets of straight slots, and several vertical fixed shafts are fixedly installed inside the support frame three. The fixed shafts are slidably engaged with the straight slots. Several sets of springs two are fixedly installed on the upper and lower surfaces of the support plate two, which are sleeved on the outside of the fixed shafts. The springs two are fixed to the support frame three.

[0014] Optionally, the nozzle assembly includes a first connecting pipe, a second connecting pipe, and a hose. The hose is disposed between the first connecting pipe and the second connecting pipe, and metal connectors are fixedly provided at both ends of the hose. The metal connectors at both ends are threaded into the first connecting pipe and the second connecting pipe, respectively. A fastener is fixedly installed on the circumferential surface of the connecting pipe, and the fastener is fixed to the fixing plate; A fixing component 2 is fixedly installed on the circumferential surface of the connecting pipe 2, and the fixing component 2 is connected to the auxiliary deflection component.

[0015] A nozzle is installed at the outer end of the connecting pipe 2.

[0016] Optionally, the connecting assembly includes an upper connecting plate and a lower connecting plate, the upper connecting plate being fixed to the upper fixing plate, and three bolts symmetrically connecting the upper connecting plate and the lower connecting plate; The corresponding pipe ends of connecting pipe one and connecting pipe two are symmetrically and fixedly provided with rotating protrusions, and the two rotating protrusions are respectively rotated and engaged with the upper connecting plate and the lower connecting plate.

[0017] Optionally, the auxiliary deflection assembly includes a support plate and several arc-shaped rods. Several arc-shaped through slots of the same size, namely, arc-shaped through slot 1 and arc-shaped through slot 2, are respectively opened on the surface of the fixed plate and the support plate. The arc-shaped through slot 1 and arc-shaped through slot 2 are connected. The arc-shaped rods are set in the arc-shaped through slot 2 and are adapted to the arc-shaped through slot 2.

[0018] Optionally, an arc-shaped block is slidably provided on the circumferential surface of the arc-shaped rod. The arc-shaped block is slidably provided in the arc-shaped through groove one of the fixed plate and the arc-shaped through groove two of the support plate. A spring one is fixedly provided on both sides of the arc-shaped block and is sleeved on the surface of the arc-shaped rod. The outer end of the spring one is in contact with the inner wall of the arc-shaped through groove two.

[0019] In summary, the present invention has the following beneficial effects: 1. In this invention, the spray angle of the coolant between the nozzle and the tread is controlled by adjusting the water pressure. From the initial inclined state to the subsequent vertical state, the water pressure gradually increases, and the contact area between the coolant and the rim tread and the rim gradually changes. This can effectively reduce the difference in cooling rate between the near surface of the tread and the inside of the rim, improve the cooling uniformity of the rim in the radial direction of the wheel body, and greatly improve the quenching effect on the wheel body. 2. In this invention, the air curtain generated by the arc plate and waterproof ring in combination with the air outlet frame can effectively block the sprayed coolant and the water splashes generated by the spray, preventing the coolant from entering the spoke surface of the wheel body, and effectively improving the quenching effect of the wheel body. 3. In this invention, the auxiliary deflection mechanism effectively helps the connecting pipe 2 to stably follow the water pressure and deflect at an angle. 4. In this invention, after the wheel body is placed, the upper arc plate and the lower waterproof ring enter the working state, completing the contact protection of the upper wall and lower wall of the wheel rim. Then, the wheel is rotated to drive the wheel body to rotate, and the coolant is sprayed onto the tread of the wheel rim through the nozzle. At this time, the water pressure provided by the external water inlet device is relatively small, and the connecting pipe two is in an inclined state after the coolant is introduced. The sprayed coolant has an angle with the tread and rim of the wheel rim. At this time, the impact force of the coolant will not damage the tread and rim of the wheel rim, thus improving the quenching effect on the wheel body. 5. In this invention, the water pressure entering the first connecting pipe is gradually increased, which increases the impact force of the coolant on the second connecting pipe. Subsequently, the second connecting pipe will gradually deflect, and the angle between the nozzle and the rim tread will gradually become more perpendicular. The impact force of the cooling water on the rim tread and the rim will gradually increase, ensuring that the cooling water flow effectively breaks the vapor film. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the quenching table body of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the quenching table body of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the rotating mechanism of the present invention; Figure 6 This is a cross-sectional view of the rotating mechanism of the present invention; Figure 7 In this invention Figure 6 A magnified view of the details at point A; Figure 8 This is a schematic diagram of the upper protective mechanism of the present invention. Figure 1 ; Figure 9 This is a cross-sectional view of the wheel body of the present invention; Figure 10 This is a schematic diagram of the upper protective mechanism of the present invention. Figure 2 ; Figure 11 In this invention Figure 7 A magnified view of the details at point B; Figure 12 This is a schematic diagram of the water spray mechanism of the present invention; Figure 13 This is a schematic diagram of the internal structure of the water spray mechanism of the present invention; Figure 14This is a schematic diagram of the nozzle assembly of the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the nozzle assembly of the present invention. Figure 2 ; Figure 16 This is a schematic diagram of the auxiliary deflection component of the present invention. Figure 1 ; Figure 17 This is a schematic diagram of the auxiliary deflection component of the present invention. Figure 2 .

[0021] In the diagram, 1. Quenching table body; 2. First protective frame; 3. Second protective frame; 4. Wheel body; 5. Rotating mechanism; 6. Water spraying mechanism; 7. Upper protective mechanism; 8. Lifting support mechanism; 9. Lower protective mechanism; 21. Air jet frame; 22. Air outlet frame; 41. Tread; 42. Wheel rim; 43. Spoke; 44. Wheel hub; 45. Lower wall of wheel rim; 46. Upper wall of wheel rim; 51. Support frame one; 52. Drive 53. Moving shaft; 54. Side plate; 65. Rotating wheel; 66. Support frame two; 67. Nozzle assembly; 68. Connecting pipe one; 69. Fixing component one; 60. Connecting pipe two; 61. Fixing component two; 62. Rotating protrusion; 62. Nozzle; 63. Hose; 64. Metal connector; 65. Fixing plate; 66. Arc-shaped through groove one; 67. Auxiliary deflection assembly; 68. Support plate one; 69. 1. Arc-shaped through groove II; 6412. Arc-shaped through hole; 6413. Limiting component; 6414. Bolt component I; 642. Arc-shaped block; 643. Arc-shaped rod; 6431. Limiting groove; 6432. Extension rod; 644. Spring I; 65. Multi-head connecting pipe; 651. Connector; 66. Connecting assembly; 661. Upper connecting plate; 662. Lower connecting plate; 663. Bolt component II; 67. Rubber sealing plate I; 71 711. Arc-shaped plate; 72. Connecting rod one; 73. Support plate two; 74. Straight groove; 75. Support frame three; 76. Fitting surface; 77. Fixed shaft; 78. Spring two; 79. Rubber sealing plate two; 80. Partition plate; 81. Fixed frame; 82. Hydraulic lifting rod; 83. Support rod; 84. Placement plate; 85. Circular protrusion; 86. Connecting rod two; 97. Waterproof ring; 98. Spring three; 99. Support shaft. Detailed Implementation

[0022] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0023] Please see Figure 1-17 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figure 1-3As shown, a quenching table for processing railway wheels includes a quenching table body 1, which is arranged in the shape of a polygonal frame. A first protective frame 2 and a second protective frame 3 are fixedly arranged on each two adjacent outer sides of the quenching table body 1. The first protective frame 2 is equipped with an air jet frame 21, a water spray mechanism 6, and a drive device for driving the air jet frame 21 and the water spray mechanism 6 to slide horizontally. The second protective frame 3 is provided with a rotating mechanism 5 and a driving device for driving the rotating mechanism 5 to slide horizontally. The outer side of the rotating mechanism 5 is provided with a driving device for driving the wheel body 4 to rotate. The jet frame 21, the water spray mechanism 6, and the rotating mechanism 5 all penetrate the wall of the quenching table body 1. The above-mentioned driving devices are all existing technologies and will not be described in detail here. The quenching table body 1 is equipped with a lifting support mechanism 8 for lifting and lowering the wheel body 4. Above the lifting mechanism is a lower protection mechanism 9 for protecting the lower surface of the spokes 43 and the hub 44 in the wheel body 4. Three sets of upper protective mechanisms 7 are provided above the lower protective mechanism 9. The three sets of upper protective mechanisms 7 are driven by the water spraying mechanism 6 at the corresponding positions to merge together and work with the lower protective mechanism 9 to protect the spokes 43 and hub 44 of the wheel body 4, so as to prevent coolant from entering the upper and lower surfaces of the spokes 43 during the high-pressure spraying process and affecting the quenching effect of the wheel body 4.

[0024] like Figure 3-4 As shown, in this embodiment, the red-hot wheel body 4 is quickly and smoothly transferred to the lifting support mechanism 8 in the quenching table body 1 by a robotic arm or conveying mechanism. Then, the lifting support mechanism 8 supports the hot wheel body 4 and lifts and transports it to the position of the rotating mechanism 5. The aforementioned robotic arms or conveying mechanisms are existing technologies and will not be described in detail here; The lifting support mechanism 8 includes a partition plate 81 and a fixed frame 82. The partition plate 81 is fixedly connected to the quenching table body 1 by several rods. The fixed frame 82 is fixedly installed on the lower surface of the partition plate 81. A hydraulic lifting device is provided inside the fixed frame 82. The aforementioned hydraulic lifting device is existing technology and will not be described in detail here; The output end of the hydraulic lifting device is equipped with a hydraulic lifting rod 83 and several evenly distributed support rods 84. The hydraulic lifting rod 83 and the support rods 84 both pass through the partition plate 81 and are in sliding fit. A placement plate 85 is fixedly installed on the upper end face of the hydraulic lifting rod 83. Several connecting rods 86 are distributed on the circumferential surface of the placement plate 85. The connecting rods 86 are fixedly engaged with the placement plate 85 and the support rod 84 below. A circular protrusion 851 is fixedly provided on the upper surface of the placement plate 85, and the circular protrusion 851 is adapted to the through hole of the wheel hub 44 of the wheel body 4. After the wheel body 4 is transported onto the placement plate 85, the circular protrusion 851 is fitted into the through hole of the hub 44 to initially position the wheel body 4, and then the hydraulic lifting rod 83 below drives the wheel body 4 to descend.

[0025] like Figure 5-7 and Figure 9 As shown, in this embodiment, the lower protective mechanism 9 includes a waterproof ring 91. The inner wall of the waterproof ring 91 is provided with a plurality of ear plates. A support shaft 93 passes through the ear plates. The support shaft 93 is fixed to the upper end face of the connecting rod 86 and slides with the ear plates. A plug is provided on the upper end face of the support shaft 93 to prevent the waterproof ring 91 from separating from the support shaft 93. A spring 92, which is sleeved on the outside of the support shaft 93, is fixedly connected between the ear plate and the connecting rod 86. The upper end of the waterproof ring 91 is provided with an inclined surface, which is adapted to the lower wall surface 45 of the wheel rim; In the initial state of spring 3 92, the height of waterproof ring 91 is higher than the height of circular protrusion 851.

[0026] Specifically, during the process of transporting the wheel body 4 to the placement plate 85, the inclined surface at the upper end of the waterproof ring 91 will first contact the lower wall surface 45 of the rim. At this time, the spring 3 92 will be compressed. As the wheel body 4 continues to descend, the circular protrusion 851 enters the through hole of the hub 44 until the wheel body 4 reaches the upper surface of the placement plate 85. The contact between the waterproof ring 91 and the lower wall 45 of the rim will not affect the rotation of the wheel body 4.

[0027] like Figure 5-7 As shown, in this embodiment, after the wheel body 4 is placed on the placement plate 85, the hydraulic lifting rod 83 continues to descend. Before descending, the drive device in the second protective frame 3 used to push the rotating mechanism 5 to slide will drive the rotating mechanism 5 to move to the appropriate position. As the hydraulic lifting rod 83 descends, the wheel body 4 will be placed above the rotating mechanism 5. Then the placement plate 85 and the circular protrusion 851 will separate from the wheel body 4. With the rebound of the spring 92, the inclined surface of the waterproof ring 91 will be kept in continuous contact with the lower wall surface 45 of the rim. Then the drive device in the second protective frame 3 used to rotate will be activated, and the rotating mechanism 5 will drive the wheel body 4 to rotate. The rotating mechanism 5 includes a support frame 51 and a drive shaft 52. Side plates 53 are fixedly installed at both ends of the support frame 51. The drive shaft 52 passes through the side plates 53 and rotates in cooperation with them. A rotating wheel 54 is fixedly installed on the end face of the drive shaft 52 that is close to the wheel body 4. The support frame 51 is moved by the sliding drive device, and the support frame 51 will drive the rotating wheel 54 to limit the wheel flange 42 of the wheel body 4, so as to prevent the wheel body 4 from deviating during rotation.

[0028] like Figure 3-4 and Figure 8 As shown, in this embodiment, the water spraying mechanism 6 includes a second support frame 61, a jet frame 21 is fixedly installed on the upper surface of the second support frame 61, an air outlet frame 22 is fixedly installed on the outer end of the jet frame 21, and an air inlet device is connected to the outer side of the jet frame 21 to supply air to the jet frame 21. The aforementioned air intake device is existing technology and will not be described in detail here; The air outlet frame 22 includes a vertical frame and an inclined frame. The inclined frame faces the upper surface of the wheel rim of the wheel body 4. The air intake device sends air into the air outlet frame 22 and blows it out from the inclined frame, forming an air curtain. This can effectively prevent coolant from being sprayed directly or water from splashing onto the upper surface of the spokes 43 of the wheel body 4 during the spraying process.

[0029] like Figure 8-11 As shown, in this embodiment, the upper protective mechanism 7 includes an arc-shaped plate 71 and a support frame 3 73. The support frame 3 73 is fixedly installed on the upper end face of the support frame 2 61 and penetrates the outer side of the jet frame 21. The size of the arc plate 71 is adapted to the rim of the wheel body 4. The lower end face of the arc plate 71 is provided with an inclined surface, which is adapted to the upper wall surface 46 of the rim. After the three sets of arc plates 71 are combined, they form a complete ring. After the combined complete ring is lowered, the inclined surface fits against the upper wall surface 46 of the rim and does not affect the rotation of the wheel body 4.

[0030] like Figure 8-11 As shown, in this embodiment, a connecting rod 711 is fixedly provided on the outer circumferential surface of the arc plate 71. The connecting rod 711 will not affect the air curtain blown out by the air outlet frame 22. A support plate 72 is fixedly provided on the outer end of the connecting rod 711. The support plate 72 is provided inside the support frame 73. The outer side of the second support plate 72 is provided with an inclined surface, and the inner wall of the third support frame 73 is provided with a mating surface 731. The inclined surface of the second support plate 72 contacts the mating surface 731 and slides together.

[0031] like Figure 8-11 As shown, in this embodiment, the surface of the second support plate 72 is provided with several sets of straight slots 721, and several vertical fixed shafts 74 are fixedly installed inside the third support frame 73. The fixed shafts 74 slide with the straight slots 721 to prevent the second support plate 72 from shifting during movement. Several sets of springs 75, which are sleeved on the outside of the fixed shaft 74, are fixedly installed on the upper and lower surfaces of the support plate 72. The springs 75 are fixed to the support frame 73. The outer side of the support frame 3 73 is provided with a rubber sealing plate 2 76. The support plate 2 72 passes through the rubber sealing plate 2 76 and is fixedly engaged. The rubber sealing plate 2 76 can effectively prevent cooling water from entering the support frame 3 73.

[0032] like Figure 8 As shown in this embodiment, the two sides of the arc plate 71 are respectively provided with a locking block and a locking slot. During the process of merging the three arc plates 71, the locking block will enter the locking slot of the adjacent arc plate 71. After merging, the locking block is completely inserted into the locking slot. This can effectively prevent the merged arc plate 71 from shifting or moving during the descent process.

[0033] Specifically, the wheel body 4 is placed on the rotating wheel 54. After the limit is completed, the drive device for sliding in the first protective frame 2 is activated to drive the second support frame 61 to move. The second support frame 61 will drive the upper jet frame 21 and the third support frame 73 to the working position. During the movement, the three arc plates 71 merge. After merging, the arc plate 71 is located above the wheel body 4 and has not yet contacted the upper wall 46 of the rim. As the second support frame 61 continues to move, the contact surface 731 of the third support frame 73 will push the inclined surface of the second support plate 72, causing the second support plate 72 to descend. At this time, the second spring 75 on the upper and lower sides will be stretched and compressed respectively, and will tilt until the inclined surface at the lower end of the arc plate 71 contacts the upper wall 46 of the rim. At this time, the merged arc plate 71 can effectively protect the spoke 43. With the air curtain blown out by the air outlet frame 22, it completely prevents the cooling water from spraying onto the upper surface of the spoke 43, greatly improving the quenching effect of the wheel body 4.

[0034] like Figure 12-14 As shown, in this embodiment, several fixing plates 63 are arranged inside the second support frame 61. The fixing plates 63 are fixed to the second support frame 61 by bolts. Several sets of nozzle assemblies 62 with adjustable angles and connecting components 66 for connecting the nozzle assemblies 62 and the fixing plates 63 are arranged on the lower surface of the fixing plates 63. An auxiliary deflection component 64 that helps the nozzle assemblies 62 adjust their angle is fixed on the upper surface of the fixing plates 63 by bolts.

[0035] like Figure 12-14 As shown, in this embodiment, the nozzle assembly 62 includes a first connecting pipe 621, a second connecting pipe 622, and a hose 624. Both the first connecting pipe 621 and the second connecting pipe 622 are metal pipes. The flexible hose 624 is made of rubber and is located between the first connecting pipe 621 and the second connecting pipe 622. It can be bent, and metal connectors 6241 are fixed at both ends of the flexible hose 624. The metal connectors 6241 at both ends are threaded to the first connecting pipe 621 and the second connecting pipe 622 respectively. A fastener 6211 is fixedly provided on the circumferential surface of the connecting pipe 621. The fastener 6211 is fixed to the fixing plate 63 by bolts, thereby fixing the position of the connecting pipe 621. A fixing member 6221 is fixedly installed on the circumferential surface of the connecting pipe 622. The fixing member 6221 is connected to the auxiliary deflection component 64 to ensure that the connecting pipe 622 can stably deflect the angle. The second connecting pipe 622 penetrates the outer side of the second support frame 61, and a retractable and foldable rubber sealing plate 67 is provided at the penetration position. The rubber sealing plate 67 will not affect the angle deflection of the second connecting pipe 622, and can effectively prevent cooling water from entering the second support frame 61. A nozzle 623 is installed at the outer end of the second connecting pipe 622. Cooling water is introduced from the first connecting pipe 621, enters the second connecting pipe 622 through the hose 624, and then sprays out from the nozzle 623 onto the rim tread 41 and rim 42 of the wheel body 4. The nozzle 623 and rubber sealing plate 67 mentioned above are both existing technologies and can be purchased on the market according to the required size.

[0036] like Figure 13-17 As shown, in this embodiment, the connecting component 66 includes an upper connecting plate 661 and a lower connecting plate 662. The upper connecting plate 661 is fixed to the upper fixing plate 63 by bolts. Bolts are symmetrically connected between the upper connecting plate 661 and the lower connecting plate 662. The corresponding pipe head positions of connecting pipe 621 and connecting pipe 622 are symmetrically and fixedly provided with rotating protrusions 6222, and the two rotating protrusions 6222 respectively rotate with the upper connecting plate 661 and the lower connecting plate 662. After connecting the upper connecting plate 661 and the lower connecting plate 662 to the rotating protrusion 6222 of the connecting pipe 1 621 and the connecting pipe 2 622, use bolt 3 to fix the upper connecting plate 661 and the lower connecting plate 662 together. Then use bolts to fix the upper connecting plate 661 to the fixing plate 63. At this time, the connecting pipe 1 621 has been fixed to the fixing plate 63 by the fixing part 1 6211, and the hose 624 has been installed between the connecting pipe 1 621 and the connecting pipe 2 622.

[0037] like Figure 13-17As shown, in this embodiment, the auxiliary deflection component 64 includes a support plate 641 and a plurality of arc-shaped rods 643. The surfaces of the fixing plate 63 and the support plate 641 are respectively provided with a plurality of arc-shaped through grooves 631 and 6411 of the same size. The arc-shaped through grooves 631 and 6411 communicate with each other. The arc-shaped rods 643 are disposed in the arc-shaped through grooves 6411 and are adapted to the arc-shaped through grooves 6411. One end of the arc-shaped rod 643 has a limiting groove 6431, and the other end of the arc-shaped rod 643 extends into an arc-shaped extension rod 6432; An arc-shaped through hole 6412 is provided on the outer side of the support plate 641 at a position corresponding to the limiting groove 6431, so that the arc rod 643 can be inserted into the arc-shaped through groove 6411. The inner wall of the arc-shaped through groove 6411 is provided with a slot that matches the extension rod 6432, so that after the arc-shaped rod 643 enters the arc-shaped through groove 6411, the extension rod 6432 is inserted into the slot to initially limit the arc-shaped rod 643. The outer side of the support plate 641 is provided with a bolt 6414, which is threaded to the support plate 641. A limiting member 6413 for fixing the arc rod 643 is sleeved on the circumferential surface of the bolt 6414. The rod part of the limiting member 6413 can be inserted into the limiting groove 6431 of the arc rod 643, and then the final fixing of the arc rod 643 is completed by the bolt 6414.

[0038] like Figure 16-17 As shown, in this embodiment, an arc-shaped block 642 is slidably disposed on the circumferential surface of the arc-shaped rod 643. The arc-shaped block 642 is slidably disposed in the arc-shaped through groove 631 of the fixed plate 63 and the arc-shaped through groove 6411 of the support plate 641. Furthermore, a spring 644 is fixedly disposed on both sides of the arc-shaped block 642 and is sleeved on the surface of the arc-shaped rod 643. The outer end of the spring 644 contacts the inner wall of the arc-shaped through groove 6411. A vertical rod connects the arc-shaped block 642 to the fixing component 6221.

[0039] Specifically, in the initial stage, the second connecting pipe 622 is in an inclined state relative to the rim tread surface 41, and the first spring 644 is at its original length. As the second connecting pipe 622 deflects, the second connecting pipe 622 drives the arc block 642 to slide on the surface of the arc rod 643 through the second fixing piece 6221. The first spring 644 on one side generates a stretching amount, and the first spring 644 on the other side generates a compression amount.

[0040] like Figure 12-13As shown, in this embodiment, the outer end of the second connecting pipe 622 is provided with a multi-head connecting pipe 65. The multi-head connecting pipe 65 is threadedly engaged with the second connecting pipe 622 through a connector 651. The multi-head connecting pipe is connected to the second connecting pipe 622 in different nozzle assemblies 62. A general water inlet at the other end of the multi-head connecting pipe is connected to an external water inlet device. This allows for convenient adjustment of the deflection angle of several nozzles 623 in the vertical direction. The aforementioned water inlet device is existing technology and will not be described in detail here.

[0041] Specifically, after the wheel body 4 is placed, the upper arc plate 71 and the lower waterproof ring 91 enter the working state, completing the contact protection of the upper wall 46 and the lower wall 45 of the rim. Then, the wheel 54 rotates to drive the wheel body 4 to rotate, and then the coolant is sprayed onto the tread surface 41 of the rim through the nozzle 623. At this time, the water pressure provided by the external water inlet device is relatively small, and the connecting pipe 622 is in an inclined state after the coolant is introduced. The sprayed coolant has an angle with the tread surface 41 and the rim 42 of the rim. At this time, the impact force of the coolant will not damage the tread surface 41 and the rim 42 of the rim. At the same time, the sprayed coolant and the water splash generated by the spray can be effectively blocked by the air curtain generated by the air outlet frame 22, as well as the arc plate 71 and the waterproof ring 91, to prevent the coolant from entering the surface of the spoke 43 of the wheel body 4. Subsequently, the water pressure entering the first connecting pipe 621 is gradually increased, which increases the impact force of the coolant on the second connecting pipe 622. Then the second connecting pipe 622 will gradually deflect, and the angle between the nozzle 623 and the rim tread 41 will gradually become more perpendicular. The impact force of the cooling water on the rim tread 41 and the rim 42 will gradually increase, ensuring that the cooling water flow effectively breaks the vapor film. At this time, the air curtain blown out of the air outlet frame 22, together with the arc plate 71 and the waterproof ring 91, can effectively block the vertical cooling water flow, so that the cooling water flow does not come into contact with the spoke 43, effectively improving the overall quenching effect of the wheel. Furthermore, by adjusting the water pressure, the coolant spray angle between the nozzle 623 and the tread 41 is adjusted, gradually changing from an initial inclined state to a subsequent vertical state. As the water pressure increases, the contact area between the coolant and the rim tread 41 and the rim flange 42 gradually changes. This effectively reduces the difference in cooling rate between the near-surface layer of the tread 41 and the interior of the rim, improves the cooling uniformity of the rim in the radial direction of the wheel body 4, and greatly enhances the quenching effect on the wheel body 4.

[0042] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0043] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.

[0044] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.

Claims

1. A quenching table for processing railway wheels, characterized in that: The quenching table body is a polygonal frame, and each pair of adjacent outer sides of the quenching table body is provided with a first protective frame and a second protective frame. The first protective frame is equipped with a jet frame and a water spraying mechanism at the top and bottom. The outer end of the jet frame is equipped with an air outlet frame, which includes a vertical frame and an inclined frame. The inclined frame faces the upper surface of the wheel rim. The second protective frame is equipped with a rotating mechanism; the quenching table body is equipped with a lifting support mechanism, and a lower protective mechanism is installed above the lifting mechanism; above the lower protective mechanism are three sets of upper protective mechanisms that can be combined to form a ring cover. The water spraying mechanism includes a second support frame, and an upper protective mechanism is set on the upper surface of the second support frame. The second support frame drives the upper protective mechanism to merge and form an annular cover to prevent the coolant from contacting the spokes. The support frame 2 has several fixed plates installed on the upper and lower surfaces. The lower surface of the fixed plates has several sets of nozzle assemblies that can adjust the spray angle between the coolant and the rim tread and the rim flange, as well as connecting components for connecting the nozzle assemblies and the fixed plates. The upper surface of the fixed plates has auxiliary deflection components that help adjust the angle of the nozzle assemblies.

2. The quenching table for railway wheel processing according to claim 1, characterized in that: The first protective frame is also equipped with a drive device for driving the jet frame and water spray mechanism to slide horizontally. The second protective frame is also equipped with a drive device for driving the rotating mechanism to slide horizontally, and a drive device for driving the wheel body to rotate is provided on the outside of the rotating mechanism.

3. The quenching table for railway wheel processing according to claim 1, characterized in that: The lifting support mechanism includes a partition and a fixed frame. The partition is fixedly connected to the quenching table body by several rods. The fixed frame is fixedly installed on the lower surface of the partition. A hydraulic lifting device is installed inside the fixed frame. The output end of the hydraulic lifting device is equipped with a hydraulic lifting rod and several evenly distributed support rods. The hydraulic lifting rod and the support rods pass through the partition and are in sliding fit. A placement plate is fixedly installed on the upper end face of the hydraulic lifting rod. Several connecting rods are distributed on the circumference of the placement plate. The connecting rods are fixedly fitted with the placement plate and the support rods below.

4. The quenching table for railway wheel processing according to claim 1, characterized in that: The lower protective mechanism includes a waterproof ring, with several ear plates distributed on the inner wall of the waterproof ring. A support shaft passes through the ear plates and is fixed to the upper end face of the connecting rod two, and slides with the ear plates. A spring three, which is sleeved on the outside of the support shaft, is fixedly connected between the ear plates and the connecting rod two. The upper end of the waterproof ring is provided with an inclined surface that matches the lower wall surface of the wheel rim.

5. A quenching table for railway wheel processing according to claim 1, characterized in that: The upper protective mechanism includes an arc-shaped plate and a support frame three. The support frame three is located on the upper end face of the support frame two and extends through the outer side of the jet frame. The arc-shaped plate is adapted to the rim of the wheel body. The lower end of the arc-shaped plate is provided with an inclined surface, which is adapted to the upper wall of the rim. After the three sets of arc-shaped plates are combined, they form a complete ring. After the complete ring is lowered, the inclined surface fits into the upper wall of the rim. A connecting rod 1 is fixedly installed on the outer circumference of the arc plate, and a support plate 2 is fixedly installed at the outer end of the connecting rod 1. The support plate 2 is installed inside the support frame 3. The outer side of the second support plate is provided with an inclined surface, and the inner wall of the third support frame is provided with a mating surface. The inclined surface of the second support plate contacts the mating surface and slides together.

6. A quenching table for railway wheel processing according to claim 5, characterized in that: The surface of the second support plate has several sets of straight slots. Several vertical fixed shafts are fixedly installed inside the third support frame, and the fixed shafts slide with the straight slots. Several sets of springs are fixedly installed on the upper and lower surfaces of the second support plate, which are sleeved on the outside of the fixed shafts and are fixed to the third support frame.

7. A quenching table for railway wheel processing according to claim 1, characterized in that: The nozzle assembly includes a first connecting pipe, a second connecting pipe, and a hose. The hose is positioned between the first connecting pipe and the second connecting pipe. Metal connectors are fixed at both ends of the hose, and the metal connectors at both ends are threaded into the first connecting pipe and the second connecting pipe, respectively. A fastener is fixedly installed on the circumferential surface of the connecting pipe, and the fastener is fixed to the fixing plate; A fixing component 2 is fixedly installed on the circumferential surface of the connecting pipe 2, and the fixing component 2 is connected to the auxiliary deflection component; A nozzle is installed at the outer end of the connecting pipe 2.

8. A quenching table for railway wheel processing according to claim 7, characterized in that: The connecting assembly includes an upper connecting plate and a lower connecting plate. The upper connecting plate is fixed to the upper fixed plate, and three bolts are symmetrically connected between the upper connecting plate and the lower connecting plate. The corresponding pipe ends of connecting pipe one and connecting pipe two are symmetrically and fixedly provided with rotating protrusions, and the two rotating protrusions are respectively rotated and engaged with the upper connecting plate and the lower connecting plate.

9. A quenching table for railway wheel processing according to claim 1, characterized in that: The auxiliary deflection assembly includes a support plate 1 and several arc-shaped rods. Several arc-shaped through slots 1 and 2 of the same size are respectively opened on the surface of the fixed plate and the support plate 1. The arc-shaped through slots 1 and 2 are connected. The arc-shaped rods are set in the arc-shaped through slots 2 and are adapted to the arc-shaped through slots 2.

10. A quenching table for railway wheel processing according to claim 9, characterized in that: An arc-shaped block is slidably provided on the circumferential surface of the arc-shaped rod. The arc-shaped block is slidably provided in the arc-shaped through groove one of the fixed plate and the arc-shaped through groove two of the support plate. A spring one is fixedly provided on both sides of the arc-shaped block and is sleeved on the surface of the arc-shaped rod. The outer end of the spring one is in contact with the inner wall of the arc-shaped through groove two.

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