Guide roller transmission system of wheel rolling mill

Abstract

The invention discloses a wheel rolling mill guide roller transmission system, which belongs to the technical field of steel wheel manufacturing, and comprises a rotating bracket which rotates by taking a rotating shaft rotationally connected to a machine body as a shaft, the right part of the rotating bracket comprises two rotating arms, and a lower centering roller assembly is rotationally connected between the two rotating arms; guide roller assemblies are arranged at the right ends of the two rotating arms, and the axes of the guide roller assemblies incline leftwards. The rotating support rotationally connected with the machine body is arranged, and the lower centering roller assembly and the guide roller assembly are arranged at the right end of the rotating support, so that during use, the left end of the rotating support is driven by the first driving device to rotate, then the rotating support rotates integrally, and the right end of the rotating support moves upwards or downwards; and the right end of the rotating bracket drives the lower centering roller assembly and the guide roller assembly to synchronously move upwards or downwards, so that the purpose that the lower centering roller assembly and the guide roller assembly move towards the circle center direction of the wheel is achieved.

Description

Technical Field

[0001] This invention belongs to the field of steel wheel manufacturing technology, and particularly relates to a wheel rolling mill guide roller transmission system. Background Technology

[0002] A wheel rolling mill is a piece of equipment used to manufacture railway train wheels. In the wheel manufacturing process, the heated billet is first pressed into shape using a press, then the spokes are expanded and the rim and tread are rolled out on the wheel rolling mill, and finally the wheel is precisely machined on a lathe.

[0003] like Figure 1 As shown, in existing wheel rolling mills, the main roll and upper and lower centering rolls are used to maintain the position of the wheel blank during the rolling process, ensuring that the axis of the side roll always points to the center of the wheel blank. The side roll is used to process the inner and outer end faces of the wheel rim and the height of the hot-rolled wheel rim. The main roll is used to process the tread and the rim. The shape of the rim depends on the roll type of the main roll. The left and right spoke rolls are used to expand the rim and drive the wheel to rotate through friction.

[0004] In existing rolling mills, multiple rolls are arranged around the circumference of the wheel during hot rolling. These include an upper centering roll assembly, a lower centering roll assembly, a guide roll assembly, a spoke roll assembly, an edge roll assembly, and a main roll assembly. The lower centering roll assembly and the guide roll assembly are both located below the wheel. The lower centering roll assembly supports the lower part of the wheel, while the guide roll assembly clamps the lower sides of the wheel. The multiple rolls work together to limit the circumference of the wheel and achieve the purpose of wheel positioning. Therefore, the lower centering roll assembly and the guide roll assembly need to move towards the center of the wheel to complete the clamping of the wheel. The existing transmission system for moving the lower centering roll assembly and the guide roll assembly towards the center of the wheel is independently controlled, which increases the energy consumption and manufacturing cost of the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a guide roller transmission system for a wheel rolling mill, which has the advantage of simultaneously controlling the movement of the lower centering roller assembly and the guide roller assembly toward the center of the wheel, effectively solving the problem of excessive energy consumption in the transmission system of the lower centering roller assembly and the guide roller assembly in the prior art.

[0006] The present invention adopts the following technical solution: a guide roller transmission system for a wheel rolling mill, comprising a rotating bracket that rotates around a rotating shaft rotatably connected to the machine body, the right side of the rotating bracket comprising two rotating arms, a lower centering roller assembly rotatably connected between the two rotating arms, a guide roller assembly provided at the right end of each of the two rotating arms, the axis of the guide roller assembly being inclined to the left, a first driving device connected to the left end of the rotating bracket, the first driving device being used to drive the rotating bracket to rotate around the axis of the rotating shaft; a second driving device is provided on the rotating arm, the second driving device driving the guide roller assembly to move inward or outward.

[0007] Furthermore, the guide roller assembly includes a guide sleeve and a guide shaft passing through the guide sleeve, as well as a guide plate fixedly disposed to the inner end of the guide shaft. A slider is slidably disposed on the inner side of the guide plate in the vertical direction. A guide roller is rotatably connected to the upper end face of the slider. The outer end of the guide shaft is connected to the output end of the second drive device. The outer surface of the guide sleeve is fixedly disposed to the corresponding rotating arm. A locking structure is provided between the slider and the guide plate to realize the switching between two states: fixed position and vertical sliding. When the locking structure is open, the slider and the guide plate remain fixed in position to form a whole. When the locking structure is closed, the slider and the guide plate are released from position fixation and realize vertical sliding.

[0008] Furthermore, the locking structure includes a locking bolt threadedly connected to the slider. An elongated hole is provided on the guide plate along the vertical direction. The locking bolt passes through the elongated hole from the outside and is threadedly connected to the slider. The width of the elongated hole is greater than the diameter of the locking bolt stud, and the width of the elongated hole is less than the diameter of the locking bolt nut.

[0009] Furthermore, the locking structure includes two inclined and symmetrically arranged guide plates. The bottom distance between the two guide plates is smaller than the top distance between the two guide plates. A transition block is provided between the guide plates and the corresponding sliders. The outer side of the transition block slides along the inclined direction with the guide plates, and the inner side of the transition block is fixed to the corresponding slider. A lifting spring is fixedly provided at the bottom of each slider, and the lifting spring drives the slider to move upward continuously. A sensing device is provided between the two sliders. The sensing device is used to pick up the information on the change in the diameter of the wheel tread and to locate the vertical position of the positioning guide roller.

[0010] Furthermore, the sensing device includes a left sensing device and a right sensing device. The left sensing device is used to pick up information on the change in the tread diameter of a single-flanged wheel, and the right sensing device is used to pick up information on the change in the tread diameter of a double-flanged wheel.

[0011] Furthermore, the left-side sensing device includes a vertical sensing rod disposed on the left side of the front slider. A fixed shaft is fixedly disposed at the top of the vertical sensing rod, and a sensing wheel is rotatably connected to the fixed shaft. An L-shaped sensing rod is fixedly disposed at the rear end of the fixed shaft. The L-shaped sensing rod is slidably disposed with the rear slider in the front-back direction via a first guide rod.

[0012] Furthermore, a guide bar is fixedly provided at the rear end of the L-sensing rod, and a first slide rail is fixedly provided at the front end of the first guide rod. The guide bar is slidably disposed in the first slide rail in the vertical direction. The vertical sensing rod is slidably disposed on the front slider in the vertical direction. Vertical holes are provided on both the vertical sensing rod and the guide bar. Adjusting bolts are threadedly connected to both the first slide rail and the front slider. The adjusting bolts pass through the corresponding vertical holes and are threadedly connected to the first slide rail or the front slider.

[0013] Furthermore, the right-side sensing device includes two support rods and an L-shaped frame fixedly mounted on the top of the inner side of the support rods. A sensing roller is rotatably connected between the two L-shaped frames. The front support rod is slidably mounted on the right side of the front slider in the vertical direction, and the rear support rod is slidably mounted in the second slide groove in the vertical direction. A second guide rod is fixedly mounted on the rear side of the second slide groove and is slidably mounted in the rear slider in the front-back direction. Sliding holes are opened on both support rods in the vertical direction. Fixing bolts are threadedly connected to the right side of the front slider and the second slide groove, and the fixing bolts pass through the sliding holes and are threadedly connected to the slider or the second slide groove.

[0014] Furthermore, the first driving device includes a first hydraulic telescopic rod hinged to the machine body, and the output shaft of the first hydraulic telescopic rod is hinged to the left end of the rotating bracket.

[0015] Furthermore, the second driving device is a second hydraulic telescopic rod fixedly installed at the outer end of the guide sleeve, and the output shaft of the second hydraulic telescopic rod is fixedly installed with the guide shaft.

[0016] I. This invention provides a rotating bracket that is rotatably connected to the machine body, and sets the lower centering roller assembly and the guide roller assembly at the right end of the rotating bracket. In use, the left end of the rotating bracket is driven to rotate by the first driving device, thereby causing the rotating bracket to rotate as a whole. This causes the right end of the rotating bracket to move up or down, which in turn causes the right end of the rotating bracket to drive the lower centering roller assembly and the guide roller assembly to move up or down synchronously, thus achieving the purpose of moving the lower centering roller assembly and the guide roller assembly towards the center of the wheel.

[0017] Second, this invention, by setting a locking structure, allows for the adjustment of the vertical position of the slider relative to the guide plate by closing the locking structure during use, thereby achieving the purpose of adjusting the vertical position of the guide roller; when the guide roller is adjusted to a suitable position, the locking structure is opened, fixing the relative position of the slider and the guide plate, thereby achieving the purpose of adjusting the vertical position of the guide roller, so that when producing wheels of different specifications and sizes, the guide roller is in a suitable position to clamp the side of the wheel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a wheel rolling mill in the prior art; Figure 2 This is a three-dimensional structural schematic diagram of the second driving device in this invention; Figure 3 This is a three-dimensional structural diagram of the lower centering roller assembly in this invention; Figure 4 This is a three-dimensional structural diagram of the guide sleeve in this invention; Figure 5 This is a three-dimensional structural diagram of the rotating support in this invention; Figure 6 This is a three-dimensional structural diagram of the guide shaft in this invention; Figure 7 This is a three-dimensional structural diagram of the guide plate in this invention; Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point A in the diagram; Figure 9 This is a schematic diagram of the three-dimensional structure of the pallet in this invention; Figure 10 This is a three-dimensional structural diagram of the first hydraulic telescopic rod in this invention; Figure 11 This is a three-dimensional structural diagram of the second hydraulic telescopic rod in this invention; Figure 12 This is a schematic diagram of the right-side view of the wheel structure in this invention; Figure 13 This is a schematic diagram of the front view structure of the wheel in this invention; Figure 14 This is a schematic diagram of the three-dimensional structure of the guide roller in this invention; Figure 15 This is a three-dimensional structural diagram of the limiting plate in this invention; Figure 16 This is a schematic diagram of the three-dimensional structure of the induction wheel in this invention; Figure 17 This is a schematic diagram of the three-dimensional structure of the induction roller in this invention; Figure 18 This is a three-dimensional structural diagram illustrating the positional relationship between the single-flanged wheel and the induction wheel in this invention; Figure 19 This is a three-dimensional structural diagram illustrating the positional relationship between the double-rimmed wheel and the induction roller in this invention.

[0019] In the diagram, 1. Machine body; 2. Upper centering roller assembly; 3. Lower centering roller assembly; 4. Guide roller assembly; 5. Spoke roller assembly; 6. Side roller assembly; 7. Channel; 8. Wheel; 9. Rotating shaft; 10. Rotating support; 11. Rotating arm; 12. First drive device; 13. Second drive device; 14. Tread; 15. Inner edge; 16. Wheel rim; 17. Guide sleeve; 18. Guide shaft; 19. Guide plate; 20. Slider; 21. Guide roller; 22. Locking bolt; 23. Elongated hole; 24. Receiving groove; 25. Transition block; 26. Lifting spring; 27. Limiting plate; 28. Support plate; 29. ​​Vertical sensing rod; 30. Sensing wheel; 31. L-shaped sensing rod; 32. First guide rod; 33. Guide bar; 34. First slide rail; 35. Vertical hole; 36. Adjusting bolt; 37. Support rod; 38. L-shaped frame; 39. Sensing roller; 40. Second slide rail; 41. Second guide rod; 42. Sliding hole; 43. Fixing bolt; 44. First hydraulic telescopic rod; 45. Second hydraulic telescopic rod. Detailed Implementation

[0020] Please see Figure 1-19 The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figure 1 As shown, the existing wheel rolling mill includes a machine body 1. The right side of the machine body 1 is provided with an upper centering roll assembly 2, a lower centering roll assembly 3, a guide roll assembly 4, a spoke roll assembly 5, and an edge roll assembly 6. A channel 7 is opened in the left and right direction inside the machine body 1. The left side of the machine body 1 is provided with a main roll assembly (not shown in the figure). In use, the wheel 8 is placed between the upper centering roll assembly 2 and the lower centering roll assembly 3. The wheel 8 is clamped by the upper centering roll assembly 2, the lower centering roll assembly 3, the guide roll assembly 4, the spoke roll assembly 5, and the edge roll assembly 6. The main roll assembly moves to the right in the channel 7 to abut against the tread surface 14 of the wheel 8. Then the spoke roll assembly 5 rotates and drives the wheel 8 to rotate through friction, realizing the hot rolling of the wheel 8.

[0021] like Figures 2 to 19As shown, the wheel rolling mill guide roller transmission system of the present invention includes a rotating support 10 that rotates around a rotating shaft 9 rotatably connected to the machine body 1. The right side of the rotating support 10 includes two rotating arms 11, and a lower centering roller assembly 3 is rotatably connected between the two rotating arms 11. A guide roller assembly 4 is provided at the right end of each of the two rotating arms 11. The axis of the guide roller assembly 4 is inclined to the left. A first driving device 12 is connected to the left end of the rotating support 10. The first driving device 12 is used to drive the rotating support 10 to rotate around the axis of the rotating shaft 9. The rotating arm 11 is rotated so that the right end of the rotating support 10 is raised or lowered, thereby driving the lower centering roller assembly 3 and the two guide roller assemblies 4 to move upward or downward synchronously. A second driving device 13 is provided on the rotating arm 11. The second driving device 13 drives the guide roller assembly 4 to move inward or outward. When both guide roller assemblies 4 move inward, they clamp the wheel flange 16 of the wheel 8. When the wheel 8 rotates under the drive of the spoke roller assembly 5, the guide roller 21 of the guide roller assembly 4 and the lower centering roller of the lower centering roller assembly 3 rotate with the wheel 8.

[0022] In use, steel ingots are heated in a furnace, removed, and pressed into the shape of wheel 8 by a press. Wheel 8 is then positioned between the upper centering roller assembly 2, the lower centering roller assembly 3, the guide roller assembly 4, the spoke roller assembly 5, and the side rolling roller assembly 6. Driven by a power unit, the main rolling roller assembly moves from left to right through the channel 7 and contacts the tread surface 14 of wheel 8. The upper centering roller assembly 2 contacts the top of the tread surface 14 of wheel 8, and the lower centering roller assembly 3 contacts the bottom of the tread surface 14 of wheel 8. The upper and lower centering roller assemblies 2 and 3 position the wheel 8. The guide roller assembly 4 clamps the side of wheel 8 using guide rollers 21. The side rolling... The roller assembly 6 also clamps the side of the wheel 8. The head of the spoke roller of the spoke roller assembly 5 is an inverted cone. The cone head of the spoke roller assembly 5 is inserted into the inner side of the inner edge 15 of the wheel 8 and moves outward along the axis of the spoke roller assembly 5, so that the cone head of the spoke roller assembly 5 forms an outward force on the inner edge 15 of the wheel 8. At the same time, the spoke roller assembly 5 rotates, driving the wheel 8 to rotate. The main roller of the main roller assembly, the upper centering roller of the upper centering roller assembly 2, the lower centering roller of the lower centering roller assembly 3, the guide roller 21 of the guide roller assembly 4, and the side roller of the side roller assembly 6 all rotate with the wheel 8, so as to achieve the purpose of hot rolling the tread 14 and the rim 16 of the wheel 8.

[0023] In this embodiment, the guide roller assembly 4 includes a guide sleeve 17 and a guide shaft 18 passing through the guide sleeve 17, and a guide plate 19 fixedly disposed to the inner end of the guide shaft 18. A slider 20 is slidably disposed on the inner side of the guide plate 19 in the vertical direction. A guide roller 21 is rotatably connected to the upper end face of the slider 20. The outer end of the guide shaft 18 is connected to the output end of the second drive device 13. The outer surface of the guide sleeve 17 is fixedly disposed to the corresponding rotating arm 11. A locking structure is provided between the slider 20 and the guide plate 19 to realize the switching between two states of fixed position and vertical sliding of the slider 20 and the guide plate 19. When the locking structure is open, the slider 20 and the guide plate 19 remain fixed in position to form a whole. When the locking structure is closed, the slider 20 and the guide plate 19 are released from position fixation and realize vertical sliding. The wheel 8 is located between the two guide rollers 21. The second drive device 13 pushes the guide shaft 18 to move inward. The guide shaft 18 is in the guide sleeve The guide shaft 18 moves inward, driving the guide plate 19 to move inward. The guide plate 19 drives the slider 20 to move inward, and the slider 20 drives the guide roller 21 to move inward. This causes the two guide rollers 21 to clamp the side of the wheel 8. The spoke roller rotates, causing the wheel 8 to rotate. The wheel 8 then drives the guide roller 21 to rotate, achieving hot rolling of the wheel 8. During production, due to the different sizes and specifications of the wheels 8, the contact position between the circumferential surface of the guide roller 21 and the side of the wheel 8 is different. Therefore, it is necessary to adjust the radial position of the guide roller 21 along the wheel 8 so that when producing wheels 8 of different sizes, the guide roller 21 is in a suitable position to clamp the side of the wheel 8. By closing the locking structure, the vertical position of the slider 20 relative to the guide plate 19 can be adjusted, thereby achieving the purpose of adjusting the vertical position of the guide roller 21. When the guide roller 21 is adjusted to a suitable position, the locking structure is opened, fixing the relative position of the slider 20 and the guide plate 19.

[0024] Example 1 of the locking structure In this embodiment, the locking structure includes a locking bolt 22 threadedly connected to the slider 20. An elongated hole 23 is provided on the guide plate 19 along the vertical direction. The locking bolt 22 passes through the elongated hole 23 from the outside and is threadedly connected to the slider 20. The width of the elongated hole 23 is greater than the diameter of the stud of the locking bolt 22, and the width of the elongated hole 23 is less than the diameter of the nut of the locking bolt 22. In use, tightening the locking bolt 22 causes the nut of the locking bolt 22 to contact the guide plate 19, thus opening the locking structure. The slider 20 and the guide plate 19 remain fixed in position, forming a whole. Tightening the locking bolt 22 disengages the nut of the locking bolt 22 from the guide plate 19, thus closing the locking structure. The slider 20 can then be slid up and down to adjust the vertical position of the guide roller 21.

[0025] In this embodiment, a receiving groove 24 is provided on the guide plate 19 at the position corresponding to the elongated hole 23. The width of the receiving groove 24 is greater than the diameter of the nut of the locking bolt 22. The nut of the locking bolt 22 is a round-headed internal hexagonal structure. Turning the nut of the locking bolt 22 causes the locking bolt 22 to move inward, thereby causing the nut of the locking bolt 22 to enter the receiving groove 24 until the nut of the locking bolt 22 abuts against the inner bottom wall of the receiving groove 24, which is when the locking structure is opened, and the slider 20 and the guide plate 19 remain in a fixed position.

[0026] Example 2 of the locking structure Please see Figure 9-19In this embodiment, the locking structure includes two inclined and symmetrically arranged guide plates 19. The bottom distance between the two guide plates 19 is smaller than the top distance between the two guide plates 19. A transition block 25 is provided between the guide plate 19 and the corresponding slider 20. The outer side of the transition block 25 slides along the inclined direction with the guide plate 19, and the inner side of the transition block 25 is fixedly provided with the corresponding slider 20. A lifting spring 26 is fixedly provided at the bottom end of each slider 20, and the lifting spring 26 drives the slider 20 to move upward continuously. A sensing device is provided between the two sliders 20. The sensing device is used to pick up the diameter change information of the wheel 8 tread 14 and also has positioning function. The function of the guide roller 21 in its vertical position: When the wheel 8 is not installed, the two sliders 20 move upward to their limit position under the action of the spring. The limit position of the two sliders 20 is achieved by the limiting plate 27 fixedly set on the top of the inner side of the guide plate 19. When the wheel 8 needs to be installed, the wheel 8 is placed between the upper centering roller and the lower centering roller. The tread surface 14 of the wheel 8 contacts the sensing device. The tread surface 14 of the wheel 8 presses down on the sensing device. The sensing device moves downward, driving the two sliders 20 to move downward. The two sliders 20 slide downward along the inclined surface of the guide plate 19 through the transition block 25. At the same time, the two sliders 20 move closer to each other, thereby driving the two guide rollers 21 to move downward. The guide roller 21 moves a set distance towards the center; after the wheel 8 is positioned between the main roll assembly, upper centering roller assembly 2, lower centering roller assembly 3, guide roller assembly 4, spoke roller assembly 5, and side roll assembly 6, the distance the sensing device is pressed downward by the tread surface 14 of the wheel 8 is the distance the guide roller 21 moves downward. The vertical position of the guide roller 21 depends on the diameter of the wheel 8; then, the second drive device 13 drives the two guide rollers 21 to move inward, so that the circumferential surfaces of the two guide rollers 21 contact the side surfaces of the wheel 8, forming a clamping effect on the wheel 8; then, the rotation of the spoke roller drives the wheel 8 to rotate through the friction of the conical head, and the wheel 8 drives the main roll assembly... The upper centering roller of the upper centering roller assembly 2, the lower centering roller of the lower centering roller assembly 3, the guide roller 21 of the guide roller assembly 4, and the side roller of the side roller assembly 6 all rotate with the wheel 8 to perform hot rolling on the wheel 8. When the two guide rollers 21 clamp the wheel 8 and rotate simultaneously, the thickness of the wheel 8 decreases, and the diameter of the tread surface 14 of the wheel 8 increases. The increased diameter of the tread surface 14 of the wheel 8 pushes the sensing device to move downward. The downward movement of the sensing device drives the two sliders 20 to move downward and inward, so that the two guide rollers 21 move inward to clamp the wheel 8, compensating for the decrease in the thickness of the wheel 8 and ensuring the effect of hot rolling.

[0027] In this embodiment, a support plate 28 is provided below the guide plate 19 and is fixedly disposed with the guide sleeves 17 on both the front and rear sides. The upper end surface of the support plate 28 is provided with a receiving circular groove. The bottom end of the lifting spring 26 is located in the receiving circular groove and is fixedly disposed with the inner bottom wall of the receiving circular groove.

[0028] In this embodiment, the sensing device includes a left sensing device and a right sensing device. The left sensing device is used to pick up information on the change in the diameter of the tread 14 of the single-flanged wheel 8, and the right sensing device is used to pick up information on the change in the diameter of the tread 14 of the double-flanged wheel 8.

[0029] In this embodiment, the left-side sensing device includes a vertical sensing rod 29 disposed on the left side of the front slider 20. A fixed shaft is fixedly disposed at the top of the vertical sensing rod 29, and a sensing wheel 30 is rotatably connected to the fixed shaft. An L-sensing rod 31 is fixedly disposed at the rear end of the fixed shaft. The L-sensing rod 31 is slidably disposed with the rear slider 20 in the front-rear direction via a first guide rod 32. The L-sensing rod 31 is used to avoid the rim 16 portion of the single-rim wheel 8. In use, the wheel 8 is positioned between the upper centering roller assembly 2 and the lower centering roller assembly 3. The positional relationship between the wheel 8 and the sensing wheel 30 at this time is as follows: Figure 19 Then, the second drive device 13 sequentially pushes the two guide rollers 21 to move closer together via the guide shaft 18, guide plate 19, transition block 25, and slider 20 to clamp the side of the wheel 8. At the same time, the vertical sensing rod 29 and the L-sensing rod 31 move to the rear under the drive of the slider 20 on the front side, and the first guide rod 32 moves relative to the slider 20 on the rear side, so that the sensing wheel 30 is in complete contact with the tread surface 14 of the wheel 8. At the same time, the L-sensing rod 31 avoids the rim 16 of the single-rim wheel 8 to prevent interference with the rotation of the wheel 8. During hot rolling, the rotation of the wheel 8 drives the sensing wheel. As the wheel 8 rotates, its side is hot-rolled under the clamping of the guide roller 21, resulting in a decrease in the thickness of the wheel 8 and an increase in the diameter of the tread surface 14. Due to the decrease in the thickness of the wheel 8, a gap appears at the contact point between the guide roller 21 and the side of the wheel 8. At this time, the induction wheel 30 moves downward due to the increase in the diameter of the tread surface 14 of the wheel 8, which in turn drives the two sliders 20 to move downward and move closer to each other. This causes the two guide rollers 21 to move closer to each other, compensating for the gap that appears at the contact point between the guide roller 21 and the side of the wheel 8, thus ensuring the effect of hot rolling.

[0030] In the above scheme, the vertical position of the guide roller 21 during operation depends on the position of the vertical sensing rod 29 and the L-sensing rod 31 relative to the slider 20. To achieve the purpose of adjusting the vertical position of the guide roller 21 during operation, in this embodiment, a guide bar 33 is fixedly provided at the rear end of the L-sensing rod 31, and a first slide groove 34 is fixedly provided at the front end of the first guide rod 32. The guide bar 33 is slidably disposed within the first slide groove 34 in the vertical direction. The vertical sensing rod 29 is slidably disposed on the front slider 20 in the vertical direction. Vertical holes 35 are provided on both the vertical sensing rod 29 and the guide bar 33. The first slide groove 34 and the front slider 20 are also provided with vertical holes 35. The threaded connection includes an adjusting bolt 36, which passes through the corresponding vertical hole 35 and is threadedly connected to the first sliding groove body 34 or the front slider 20. In use, the adjusting bolt 36 is turned to loosen it, allowing the vertical sensing rod 29 and guide bar 33 to slide up and down to adjust the height of the sensing wheel 30. After adjustment, the adjusting bolt 36 is tightened to fix the vertical position of the vertical sensing rod 29 and guide bar 33. The higher the position of the sensing wheel 30 relative to the slider 20, the lower the vertical position of the guide roller 21 during operation; conversely, the lower the position of the sensing wheel 30 relative to the slider 20, the higher the vertical position of the guide roller 21 during operation.

[0031] In this embodiment, the right-side sensing device includes two support rods 37 and an L-shaped frame 38 fixedly mounted on the top of the inner side of the support rods 37. A sensing roller 39 is rotatably connected between the two L-shaped frames 38. The front support rod 37 is slidably mounted on the right side of the front slider 20 in the vertical direction, and the rear support rod 37 is slidably mounted in the second slide groove 40 in the vertical direction. A second guide rod 41 is fixedly mounted on the rear side of the second slide groove 40. The second guide rod 41 is slidably mounted in the rear slider 20 in the front-back direction. Both support rods 37 have sliding holes 42 in the vertical direction. Both the right side of the slider 20 and the second slide rail 40 are threaded with fixing bolts 43. The fixing bolts 43 pass through the sliding hole 42 and are threaded to the slider 20 or the second slide rail 40. The vertical position of the two support rods 37 can be adjusted by loosening the fixing bolts 43, and the position of the two support rods 37 can be fixed by tightening the fixing bolts 43. In use, the vertical position of the vertical sensing rod 29 and the guide bar 33 is adjusted downwards beforehand so that the sensing wheel 30 does not contact the wheel 8. Then the double-rimmed wheel 8 is placed between the upper centering roller and the lower centering roller. At this time, the sensing wheel 30 does not work, but the sensing wheel 8 does not. Roller 39 may be located between the two rims 16 of the double-rim wheel 8, or it may be in contact with one of the rims 16. The guide roller 21 is driven to move closer to each other by the second drive device 13. The second guide rod 41 slides within the rear slider 20. If the sensing roller 39 is in contact with one of the rims 16, it will slowly move to be between the two rims 16. When the sensing roller 39 moves to be between the two rims 16, the lifting spring 26 pushes the slider 20 upward again, causing the guide roller 21 to move upward, so that the sensing roller 39 contacts the tread surface 14 of the double-rim wheel 8. The second drive device 13... 3. Continue to drive the two guide rollers 21 to move towards each other, so that the guide rollers 21 clamp the side of the double-rimmed wheel 8; then the spoke roller rotates and drives the wheel 8 to rotate, and the wheel 8 rotates and drives the guide rollers 21 to rotate. When the thickness of the wheel 8 decreases during the hot rolling process, the diameter of the tread surface 14 of the wheel 8 increases and pushes the induction roller 39 to move downward. The induction roller 39 drives the two sliders 20 to move downward. The two sliders 20 move towards each other while moving downward, which in turn drives the two guide rollers 21 to further clamp the side of the wheel 8 to compensate for the gap caused by the decrease in the thickness of the wheel 8.

[0032] When hot rolling a single-flanged wheel 8, the positions of the two support rods 37 can be adjusted downward so that the induction roller 39 does not contact the tread surface 14 of the wheel 8 during hot rolling; and the single-flanged wheel 8 can also be induction roller 39.

[0033] In this embodiment, the first driving device 12 includes a first hydraulic telescopic rod 44 hinged to the body 1. The output shaft of the first hydraulic telescopic rod 44 is hinged to the left end of the rotating bracket 10. The first hydraulic telescopic rod 44 pushes the left end of the rotating bracket 10 to rotate, thereby driving the rotating bracket 10 to rotate around the rotating shaft 9, so as to achieve the purpose of the rotating bracket 10 driving the lower centering roller assembly 3 and the guide roller 21 to move upward or downward. The upward movement of the lower centering roller assembly 3 and the guide roller 21 supports the wheel 8.

[0034] In this embodiment, the second driving device 13 is a second hydraulic telescopic rod 45 fixedly installed at the outer end of the guide sleeve 17. The output shaft of the second hydraulic telescopic rod 45 is fixedly installed with the guide shaft 18. The second hydraulic telescopic rod 45 pushes the guide shaft 18 to move through the output shaft, thereby driving the guide plate 19, transition block 25, slider 20 and guide roller 21 to move, so as to achieve the purpose of moving the two guide rollers 21 away from or towards each other.

[0035] The working principle of this invention is as follows: The heated and pressed wheel 8 is positioned between the upper centering roller assembly 2, the lower centering roller assembly 3, the guide roller assembly 4, the spoke roller assembly 5, and the side roller assembly 6. Then, driven by a power device, the main roller assembly moves from left to right through the channel 7 and abuts against the tread surface 14 of the wheel 8. The upper centering roller assembly 2 contacts the top of the tread surface 14 of the wheel 8 downwards, and the lower centering roller assembly 3 contacts the bottom of the tread surface 14 of the wheel 8 from below. The upper centering roller assembly 2 and the lower centering roller assembly 3 position the wheel 8. The guide roller assembly 4 clamps the side of the wheel 8 through the guide roller 21. The side roll assembly 6 also clamps the side of the wheel 8. The conical head of the spoke roll assembly 5 is inserted into the inner side of the inner edge 15 of the wheel 8 and moves outward along the axis of the spoke roll assembly 5, so that the conical head of the spoke roll assembly 5 forms an outward force on the inner edge 15 of the wheel 8. At the same time, the spoke roll assembly 5 rotates, driving the wheel 8 to rotate. The main roll of the main roll assembly, the upper centering roll of the upper centering roll assembly 2, the lower centering roll of the lower centering roll assembly 3, the guide roll 21 of the guide roll assembly 4, and the side roll of the side roll assembly 6 all follow the rotation of the wheel 8, so as to achieve the purpose of hot rolling the tread 14 and the rim 16 of the wheel 8.

Claims

1. A guide roll drive system for a wheel rolling mill, characterized in that: The rotating bracket (10) is rotatably connected to the rotating shaft (9) on the machine body (1). The right side of the rotating bracket (10) includes two rotating arms (11). A lower centering roller assembly (3) is rotatably connected between the two rotating arms (11). A guide roller assembly (4) is provided at the right end of each of the two rotating arms (11). The axis of the guide roller assembly (4) is inclined to the left. A first driving device (12) is connected to the left end of the rotating bracket (10). The first driving device (12) is used to drive the rotating bracket (10) to rotate around the axis of the rotating shaft (9). A second driving device (13) is provided on the rotating arm (11). The second driving device (13) drives the guide roller assembly (4) to move inward or outward.

2. The wheel rolling mill guide roll drive system according to claim 1, characterized in that: The guide roller assembly (4) includes a guide sleeve (17) and a guide shaft (18) passing through the guide sleeve (17), and a guide plate (19) fixedly disposed at the inner end of the guide shaft (18). A slider (20) is slidably disposed on the inner side of the guide plate (19) in the up-down direction. A guide roller (21) is rotatably connected to the upper end of the slider (20). The outer end of the guide shaft (18) is connected to the output end of the second drive device (13). The outer surface of the guide sleeve (17) is fixedly disposed with the corresponding rotating arm (11). A locking structure is provided between the slider (20) and the guide plate (19) to realize the switching between the two states of fixed position and up-down sliding of the slider (20) and the guide plate (19). When the locking structure is open, the slider (20) and the guide plate (19) remain fixed in position to form a whole. When the locking structure is closed, the slider (20) and the guide plate (19) are released from fixed position and realize up-down sliding.

3. The wheel mill guide roll drive system according to claim 2, characterized in that: The locking structure includes a locking bolt (22) that is threadedly connected to the slider (20). An elongated hole (23) is provided on the guide plate (19) along the vertical direction. The locking bolt (22) passes through the elongated hole (23) from the outside and is threadedly connected to the slider (20). The width of the elongated hole (23) is greater than the diameter of the stud of the locking bolt (22), and the width of the elongated hole (23) is less than the diameter of the nut of the locking bolt (22).

4. The wheel mill guide roll drive system according to claim 2, characterized in that: The locking structure includes two inclined and symmetrically arranged guide plates (19). The bottom distance between the two guide plates (19) is smaller than the top distance between the two guide plates (19). A transition block (25) is provided between the guide plate (19) and the corresponding slider (20). The outer side of the transition block (25) slides with the guide plate (19) in the inclined direction. The inner side of the transition block (25) is fixed with the corresponding slider (20). A lifting spring (26) is fixedly provided at the bottom of each slider (20). The lifting spring (26) drives the slider (20) to move upward. A sensing device is provided between the two sliders (20). The sensing device is used to pick up the diameter change information of the wheel (8) tread (14) and to position the upper and lower positions of the positioning guide roller (21).

5. The wheel mill guide roll drive system according to claim 4, characterized in that: The sensing device includes a left sensing device and a right sensing device. The left sensing device is used to pick up the change information of the tread (14) diameter of the single-flanged wheel (8), and the right sensing device is used to pick up the change information of the tread (14) diameter of the double-flanged wheel (8).

6. The wheel mill guide roll drive system according to claim 5, characterized in that: The left-side sensing device includes a vertical sensing rod (29) on the left side of the slider (20) on the front side. A fixed shaft is fixedly installed at the top of the vertical sensing rod (29), and a sensing wheel (30) is rotatably connected to the fixed shaft. An L-sensing rod (31) is fixedly installed at the rear end of the fixed shaft. The L-sensing rod (31) slides along the front-back direction with the slider (20) on the rear side through a first guide rod (32).

7. The wheel mill guide roll drive system according to claim 6, characterized in that: The rear end of the L-sensing rod (31) is fixedly provided with a guide bar (33), and the front end of the first guide rod (32) is fixedly provided with a first slide body (34). The guide bar (33) is slidably disposed in the first slide body (34) in the up-down direction. The vertical sensing rod (29) is slidably disposed on the front slider (20) in the up-down direction. Vertical holes (35) are provided on both the vertical sensing rod (29) and the guide bar (33). Adjusting bolts (36) are threadedly connected to both the first slide body (34) and the front slider (20). The adjusting bolts (36) pass through the corresponding vertical holes (35) and are threadedly connected to the first slide body (34) or the front slider (20).

8. The wheel mill guide roll drive system according to claim 5, characterized in that: The right-side sensing device includes two support rods (37) and an L-shaped frame (38) fixedly installed on the top of the inner side of the support rods (37). A sensing roller (39) is rotatably connected between the two L-shaped frames (38). The front support rod (37) is slidably installed on the right side of the front slider (20) in the up-down direction. The rear support rod (37) is slidably installed in the second slide body (40) in the up-down direction. A second guide rod (41) is fixedly installed on the rear side of the second slide body (40). The second guide rod (41) is slidably installed in the rear slider (20) in the front-back direction. Sliding holes (42) are opened on both support rods (37) in the up-down direction. Fixing bolts (43) are threadedly connected to the right side of the front slider (20) and the second slide body (40). The fixing bolts (43) pass through the sliding holes (42) and are threadedly connected to the slider (20) or the second slide body (40).

9. The wheel rolling mill guide roll drive system according to claim 1, characterized in that: The first drive device (12) includes a first hydraulic telescopic rod (44) hinged to the body (1), and the output shaft of the first hydraulic telescopic rod (44) is hinged to the left end of the rotating bracket (10).

10. The wheel rolling mill guide roll drive system according to claim 1, characterized in that: The second driving device (13) is a second hydraulic telescopic rod (45) fixedly installed at the outer end of the guide sleeve (17), and the output shaft of the second hydraulic telescopic rod (45) is fixedly installed with the guide shaft (18).

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