A kind of machine set flange milling machine

Abstract

The application relates to a flange plate milling machine, in particular to a unit flange plate milling machine, which comprises a supporting disc, a rotating beam and supporting legs arranged on the supporting disc, one end of the rotating beam is provided with a milling cutter assembly for milling a flange plate; the supporting disc comprises a supporting base and a rotating base arranged above the supporting base, a worm wheel is arranged on the supporting base, a worm is arranged on the rotating base and matched with the worm wheel, and a driving motor I for driving the worm to rotate is arranged on the rotating base; the driving motor I drives the worm to rotate, so as to drive the worm to rotate relative to the worm wheel, and then drive the rotating base to rotate relative to the supporting base; the application has high adaptability and high universality, and can meet the flange plate milling operation requirements of different models and different size specifications.

Description

Technical Field

[0001] This invention relates to a flange repair device, specifically a repair milling machine that can adapt to various flange models. Background Technology

[0002] Offshore engineers must comply with industry requirements that any flange that has deformed due to welding must be milled flat to counteract the welding deformation.

[0003] Most existing flange milling machines have a fixed, adaptable structure. The clamping and positioning mechanism, machining stroke, and tool adaptability are all designed with fixed parameters, which can only adapt to the machining of flanges with a single range of diameters and a single type of seal. During operation, when faced with flanges of different diameters, sealing forms, and thicknesses, it is impossible to quickly adjust the clamping range, machining stroke, and machining mode, resulting in serious limitations in adaptability.

[0004] Meanwhile, offshore platforms face limited operating space, hoisting conditions, and complex environments. Rotating multiple pieces of equipment not only occupies significant construction space and increases equipment handling and hoisting costs, but also substantially extends project duration and equipment downtime for maintenance. Furthermore, frequent equipment and fixture changes can lead to positioning benchmark deviations, resulting in substandard flange milling flatness and surface roughness, poor machining consistency, and a high risk of problems such as inadequate sealing after repairs and uneven bolt stress, failing to meet the high-precision construction standards for offshore engineering. Summary of the Invention

[0005] The purpose of this invention is to provide a flange milling machine for generator sets that can adapt to flanges of various specifications and improve milling efficiency.

[0006] To solve the above problems, the present invention adopts the following technical solution: A flange milling machine for generator sets includes a support plate, a rotating beam, and support legs mounted on the support plate. One end of the rotating beam is provided with a milling cutter assembly for milling flanges. The support plate includes a support base and a rotating seat disposed above the support base. A worm wheel is disposed on the support base, and a worm adapted to the worm wheel and a drive motor for driving the worm to rotate are disposed on the rotating seat. The drive motor drives the worm to rotate, thereby causing the worm to rotate relative to the worm wheel, and in turn causing the rotating seat to rotate relative to the support base. The support leg includes a primary support rod and a secondary support rod. The secondary support rod is sleeved on the outside of the primary support rod. A second drive motor is provided on the outer wall of the secondary support rod. The output end of the second drive motor is connected to a transmission assembly. The second drive motor can drive the primary support rod to move axially relative to the secondary support rod through the transmission assembly.

[0007] Furthermore, the transmission assembly includes a driving spiral bevel gear, a driven spiral bevel gear, and a lead screw. The driving spiral bevel gear is connected to the second output end of the drive motor, and the driven spiral bevel gear meshes with the driving spiral bevel gear. The driven spiral bevel gear is connected to a fixed part located at the inner end of the lead screw.

[0008] Furthermore, a kit is inserted into the secondary support rod, and the kit is fitted onto the outside of the primary support rod; the kit is provided with a locking hole and threaded holes on both sides of the locking hole; the kit is equipped with a locking key, the through hole of the locking key is adapted to the threaded hole, and the locking block of the locking key passes through the locking hole; a bolt passes through the through hole and is placed in the threaded hole, and when the bolt is tightened, the locking block will abut against the locking groove on the outer wall of the primary support rod, thereby locking the primary support rod.

[0009] Furthermore, the outer end of the primary support rod is provided with a first lead screw sleeve and a second lead screw sleeve. The first lead screw sleeve has a through hole two, and the second lead screw sleeve has a threaded hole two. The second lead screw sleeve is threadedly connected to a lead screw two. The top of the lead screw two is provided with a hexagonal rotating hole. The first lead screw sleeve is provided with a step, and the slot of the lead screw two is engaged in the step.

[0010] Furthermore, the first lead screw sleeve has a wedge-shaped guide block, and the second lead screw sleeve is provided with a wedge-shaped guide groove adapted to the wedge-shaped guide block, and the second lead screw sleeve can move up and down relative to the first lead screw sleeve.

[0011] Furthermore, the milling cutter assembly includes a third drive motor, a milling head connecting shaft, a drive pulley, and a driven pulley. The bottom of the milling head connecting shaft is connected to the milling head, and the top is connected to the driven pulley. The drive pulley is connected to the output end of the third drive motor, and the drive pulley and the driven pulley are connected by a synchronous belt.

[0012] Furthermore, the rotating beam is provided with several connecting holes one, and the rotating seat is provided with several connecting holes two. Bolts pass through the connecting holes one and the connecting holes two in sequence, so that the rotating beam is installed on the rotating seat.

[0013] Furthermore, a channel steel is provided on the rotating beam, and both sides of the channel steel are connected to the rotating beam via guide rails; a transverse lead screw is provided in the channel steel, and the end of the transverse lead screw passes through the bottom plate of the rotating beam; a drive motor four is provided on the bottom plate, and the output end of the drive motor four is connected to the transverse lead screw; a transverse lead screw nut is provided on the transverse lead screw, and the transverse lead screw nut is connected to a transverse moving base.

[0014] Furthermore, a vertical lead screw nut is provided on the horizontally moving base, and a vertical lead screw is configured in the vertical lead screw nut; the upper end of the vertical lead screw is connected to the output end of the drive motor five, the drive motor five is connected to the vertically moving base, and the vertically moving base can move in the vertical direction under the drive of the vertical lead screw.

[0015] Furthermore, the rotating seat is provided with a connecting rod and a collector ring inside, and the rotating beam is provided with a through hole three to facilitate the passage of the cable; the cable starts from the collector ring, passes through the connecting rod cavity and the through hole three in sequence, and supplies power to the electrical equipment.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: This invention, by adjusting the extension length of the support legs, can flexibly adapt to flange workpieces of different diameters. Simultaneously, by adjusting the relative position of the rotating beam and the support plate, the working radius of the milling cutter can be precisely changed to meet the milling requirements of flanges with different processing sizes. This invention is equipped with a transverse and longitudinal lead screw structure that drives the milling cutter assembly to achieve lateral and longitudinal displacement. It can perform multi-dimensional precise adjustments according to the actual specifications and dimensions of the flange, comprehensively adapting to various flange processing conditions, significantly improving the applicability and versatility of the device. It effectively solves the problems of limited specification adaptability and poor versatility of traditional flange milling equipment, improving the overall efficiency of flange processing. This invention has strong adaptability and high versatility, effectively meeting the milling needs of flanges of different models and sizes. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a flange milling machine for generator sets.

[0018] Figure 2 Schematic diagram of the support plate.

[0019] Figure 3 This is a cross-sectional view of the support plate.

[0020] Figure 4 This is a schematic diagram showing the connection between the support plate and the support leg.

[0021] Figure 5 This is a schematic diagram of the supporting leg.

[0022] Figure 6 for Figure 5 Sectional view of AA.

[0023] Figure 7 This is a schematic diagram of the first lead screw sleeve.

[0024] Figure 8 This is a schematic diagram of the second lead screw sleeve.

[0025] Figure 9 This is a schematic diagram of a rotating beam.

[0026] Figure 10 This is a schematic diagram of a milling cutter assembly.

[0027] Figure 11 This is a schematic diagram of the horizontally movable base and the vertically movable base.

[0028] Figure 12 This is a schematic diagram of a vertically movable base.

[0029] Figure 13 This is a schematic diagram showing the connection between the horizontally movable base and the horizontal lead screw nut.

[0030] Figure 14 This is a schematic diagram showing the connection between the horizontally movable base and the vertical lead screw nut.

[0031] Figure 15 This is a schematic diagram of lead screw 2. Detailed Implementation

[0032] like Figure 1 As shown, a flange milling machine for a unit includes a support plate 1, a rotating beam 2, and support legs 3 disposed on the support plate 1. Each of the support legs 3 is detachably mounted on the support plate 1 via a pad 4. One end of the rotating beam 2 is provided with a milling cutter assembly for milling flanges. like Figure 10 As shown, the milling cutter assembly includes a drive motor 21, a milling head connecting shaft 22, a drive pulley 23, and a driven pulley 24. The bottom of the milling head connecting shaft 22 is connected to the milling head, and the top is connected to the driven pulley 24. The drive pulley 23 is connected to the output end of the drive motor 21, and the drive pulley 23 and the driven pulley 24 are connected by a synchronous belt.

[0033] like Figures 2 to 4 As shown, the support plate 1 includes a support base 11 and a rotating base 12 disposed above the support base 11. A worm gear 13 is disposed on the support base 11, and a worm 14 adapted to the worm gear 13 and a drive motor 15 for driving the worm 14 to rotate are disposed on the rotating base 12. The drive motor 15 drives the worm 14 to rotate, thereby causing the worm 14 to rotate relative to the worm gear 13, and in turn causing the rotating base 12 to rotate relative to the support base 11. like Figure 5 and Figure 6 As shown, the support leg 3 includes a primary support rod 31 and a secondary support rod 32. The secondary support rod 32 is sleeved on the outside of the primary support rod 31. A second drive motor 33 is provided on the outer wall of the secondary support rod 32. The output end of the second drive motor 33 is connected to a transmission assembly. The second drive motor 33 can drive the primary support rod 31 to move axially relative to the secondary support rod 32 through the transmission assembly.

[0034] The transmission assembly includes a driving spiral bevel gear 25, a driven spiral bevel gear 26, and a lead screw 28. The driving spiral bevel gear 25 is connected to the output end of the drive motor 33, and the driven spiral bevel gear 26 meshes with the driving spiral bevel gear 25. The driven spiral bevel gear 26 is connected to a fixed part 27 located at the inner end of the lead screw 28.

[0035] When flange processing is required, the equipment must first be installed. The connecting plate 29 at the end of the primary support rod 31 must be placed on the flange. When the flange size is small, the driving spiral bevel gear 25 is driven to rotate by the drive motor 33. The driven spiral bevel gear 26 meshing with the driving spiral bevel gear 25 will rotate accordingly. The driven spiral bevel gear 26 is bolted to the fixing part 27 located at the inner end of the lead screw 28. A rotating bearing 34 is provided between the fixing part 27 and the secondary support rod 32. The lead screw 28 will rotate synchronously with the driven spiral bevel gear 26. The guide seat 30 located at the inner end of the primary support rod 31 is threadedly connected to the lead screw 28. When the lead screw 28 rotates, the guide seat 30 will generate axial force when it rotates relative to the lead screw 28, driving the primary support rod 31 to move axially along the lead screw 28, thereby adjusting the extension or retraction length of the primary support rod 31 until the connecting plate 29 is placed on the flange.

[0036] A kit 61 is inserted into the secondary support rod 32, and the kit 61 is fitted onto the outside of the primary support rod 31. The kit 61 has a locking hole and threaded holes on both sides of the locking hole. A locking key 62 is configured on the kit 61, and the through hole of the locking key 62 is adapted to the threaded hole. The locking block of the locking key 62 passes through the locking hole. A bolt passes through the through hole and is placed in the threaded hole. When the bolt is tightened, the locking block abuts against the locking groove 63 on the outer wall of the primary support rod 31, thereby locking the primary support rod 31. When the drive motor 33 drives the primary support rod 31 to a designated position relative to the secondary support rod 32 through the transmission assembly, the primary support rod 31 is connected to the flange. At this time, by tightening the bolt on the locking key 62, the locking block abuts against the locking groove 63 on the outer wall of the primary support rod 31, thereby locking the primary support rod 31. In the locked state, the primary support rod 31 will no longer rotate.

[0037] The guide seat 30 is provided with a groove, and a wear-resistant sleeve 20 for protection is provided in the groove. During the rotation of the guide seat 30 relative to the secondary support rod 32, the wear-resistant sleeve 20 will contact the inner wall of the secondary support rod 32 instead of the guide seat 30, thus protecting the guide seat 30.

[0038] When the flange size is large and the effective support length of the primary support rod 31 is less than the flange size, the equipment can be adapted to flanges of different specifications by replacing the pads 4 with pads of different heights.

[0039] After the equipment is installed, the position of the milling cutter needs to be adjusted according to the flange diameter. The rotating beam 2 has several connecting holes 35, and the rotating seat 12 has several connecting holes 36. Bolts pass through the connecting holes 35 and 36 in sequence, connecting the appropriate connecting holes 35 and 36, allowing the rotating beam 2 to be mounted on the rotating seat 12, thus positioning the milling cutter in the ideal position. When a large-scale adjustment of the milling cutter's horizontal position is required, the connection position of the connecting holes 35 and 36 can be changed, thereby altering the relative position of the rotating beam 2 and the rotating seat 12, changing the rotation radius of the rotating beam 2, and thus allowing for a wide range of adjustment of the milling cutter's horizontal position.

[0040] like Figure 7 and Figure 8 In the schematic diagram, the outer end of the primary support rod 31 is provided with a first lead screw sleeve 51 and a second lead screw sleeve 52. The first lead screw sleeve 51 has a through hole 53, and the second lead screw sleeve 52 has a threaded hole 54. The second lead screw sleeve 52 is threadedly connected to a second lead screw 60, and the top of the second lead screw 60 is provided with a hexagonal rotating hole. The first lead screw sleeve 51 is provided with a step 55, such as... Figure 15 As shown, the slot 56 of the second lead screw 60 is engaged on the step 55. The first lead screw sleeve 51 has a wedge-shaped guide block 57, and the second lead screw sleeve 52 is provided with a wedge-shaped guide groove 58 that matches the wedge-shaped guide block 57. The second lead screw sleeve 52 can move up and down relative to the first lead screw sleeve 51. When it is necessary to adjust the position of the milling cutter in the vertical direction, the tool is inserted into the hexagonal rotating hole, and the tool drives the second lead screw 60 to rotate. During the rotation of the second lead screw 60, since the second through hole 53 does not have a thread, while the second threaded hole 54 has a thread, the second lead screw 60 drives the second lead screw sleeve 52 with the second threaded hole 54 to move up and down. The first lead screw sleeve 51 with the second through hole 53 will not move relative to the second lead screw 60, thereby causing the second lead screw sleeve 52 to move relative to the first lead screw sleeve 51. Adjusting the up and down position of the rotating beam 2, and thus adjusting the position of the milling cutter in the vertical direction.

[0041] like Figures 11 to 14As shown, a channel steel 41 is provided on the rotating beam 2, and both sides of the channel steel 41 are connected to the rotating beam 2 via guide rails 42. A transverse lead screw 43 is provided in the channel of the channel steel 41, and the end of the transverse lead screw 43 passes through the bottom plate of the rotating beam 2. A drive motor 4 is provided on the bottom plate, and the output end of the drive motor 4 is connected to the transverse lead screw 43. A transverse lead screw nut 44 is provided on the transverse lead screw 43, and the transverse lead screw nut 44 is connected to a transverse moving base 45. A vertical lead screw nut 46 is provided on the transverse moving base 45, and a vertical lead screw 47 is provided in the vertical lead screw nut 46. The upper end of the vertical lead screw 47 is connected to the output end of the drive motor 5, and the drive motor 5 is connected to the vertical moving base 48. The vertical moving base 48 can move in the vertical direction under the drive of the vertical lead screw 47.

[0042] When adjusting the position of the milling cutter laterally within a small range according to the diameter of the flange, the drive motor drives the transverse lead screw 43 to rotate. The transverse lead screw 43 can cause the transverse lead screw nut 44 to drive the transverse moving base 45 to move laterally, thereby allowing the milling cutter to reach the designated position.

[0043] When a small adjustment of the milling cutter's position in the vertical direction is required, the drive motor drives the vertical lead screw 47 to rotate. The vertical lead screw 47 causes the vertical lead screw nut 46 to move, which in turn moves the vertical moving base 48, thereby realizing the movement of the milling cutter in the vertical direction.

[0044] A counterweight is installed at the other end of the rotating beam 2. The counterweight is detachably mounted on the rear plate of the rotating beam 2. The rear plate has several connecting holes (three) for mounting the counterweight, and the counterweight has connecting holes (four). Bolts pass through connecting holes three and four in sequence to mount the counterweight onto the rotating beam 2. When the rotation radius of the rotating beam 2 is adjusted, the weight of the rotating beam 2 on the support plate 1 will also change. Adjusting the rotation radius may cause the rotating beam 2 to tilt to a certain extent, requiring simultaneous adjustment of the weight of the counterweight to ensure the balance of the device.

[0045] The rotating base 12 is internally equipped with a connecting rod 64 and a slip ring 65. The rotating beam 2 is provided with a through hole 3 68 to facilitate the passage of cables. The cable starts from the slip ring 65, passes through the cavity of the connecting rod 64 and the through hole 3 68 in sequence, and supplies power to the electrical equipment. Due to the action of the slip ring 65, when the rotating beam 2 rotates, the cable connected to the slip ring 65 will not rotate with it, effectively preventing the cable from twisting or tangling.

[0046] The top of the support plate 1 is provided with multiple lifting seats 66, which allow a crane to lift the support plate 1 and transfer it. Multiple lifting seats 67 are symmetrically arranged on the rotating beam 2 to facilitate its transfer.

[0047] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A flange milling machine for generator sets, characterized in that, It includes a support plate, a rotating beam, and support legs mounted on the support plate. One end of the rotating beam is provided with a milling cutter assembly for milling a flange. The support plate includes a support base and a rotating seat disposed above the support base. A worm gear is disposed on the support base, and a worm adapted to the worm gear and a drive motor for driving the worm to rotate are disposed on the rotating seat. The drive motor drives the worm to rotate, thereby causing the worm to rotate relative to the worm wheel, and in turn causing the rotating seat to rotate relative to the support seat. The support leg includes a primary support rod and a secondary support rod. The secondary support rod is sleeved on the outside of the primary support rod. A second drive motor is provided on the outer wall of the secondary support rod. The output end of the second drive motor is connected to a transmission assembly. The second drive motor can drive the primary support rod to move axially relative to the secondary support rod through the transmission assembly.

2. A flange milling machine for generator units according to claim 1, characterized in that, The transmission assembly includes a driving spiral bevel gear, a driven spiral bevel gear, and a lead screw. The driving spiral bevel gear is connected to the second output end of the drive motor, and the driven spiral bevel gear meshes with the driving spiral bevel gear. The driven spiral bevel gear is connected to a fixed part located at the inner end of the lead screw.

3. A flange milling machine for generator units according to claim 1, characterized in that, A kit is inserted into the secondary support rod, and the kit is fitted onto the outside of the primary support rod. The kit has a locking hole and threaded holes on both sides of the locking hole. The kit is equipped with a locking key, the through hole of which is adapted to the threaded hole, and the locking block of the locking key passes through the locking hole. A bolt passes through the through hole and is placed in the threaded hole. When the bolt is tightened, the locking block abuts against the locking groove on the outer wall of the primary support rod, thereby locking the primary support rod.

4. A flange milling machine for generator units according to claim 1, characterized in that, The outer end of the primary support rod is provided with a first lead screw sleeve and a second lead screw sleeve. The first lead screw sleeve has a through hole two, and the second lead screw sleeve has a threaded hole two. The second lead screw sleeve is threadedly connected to a lead screw two. The top of the lead screw two is provided with a hexagonal rotating hole. The first lead screw sleeve is provided with a step, and the slot of the lead screw two is engaged in the step.

5. A flange milling machine for generator units according to claim 4, characterized in that, The first lead screw sleeve has a wedge-shaped guide block, and the second lead screw sleeve is provided with a wedge-shaped guide groove that is adapted to the wedge-shaped guide block. The second lead screw sleeve can move up and down relative to the first lead screw sleeve.

6. A flange milling machine for generator units according to claim 1, characterized in that, The milling cutter assembly includes a third drive motor, a milling head connecting shaft, a drive pulley, and a driven pulley. The bottom of the milling head connecting shaft is connected to the milling head, and the top is connected to the driven pulley. The drive pulley is connected to the output end of the third drive motor, and the drive pulley and the driven pulley are connected by a synchronous belt.

7. A flange milling machine for generator units according to claim 1, characterized in that, The rotating beam is provided with several connecting holes 1, and the rotating seat is provided with several connecting holes 2. Bolts pass through the connecting holes 1 and connecting holes 2 in sequence, so that the rotating beam is installed on the rotating seat.

8. A flange milling machine for generator units according to claim 1, characterized in that, The rotating beam is provided with a channel steel, and both sides of the channel steel are connected to the rotating beam through guide rails; a transverse lead screw is provided in the channel steel, and the end of the transverse lead screw passes through the bottom plate of the rotating beam; a drive motor is provided on the bottom plate, and the output end of the drive motor is connected to the transverse lead screw; a transverse lead screw nut is provided on the transverse lead screw, and the transverse lead screw nut is connected to a transverse moving base.

9. A flange milling machine for a generator unit according to claim 8, characterized in that, A vertical lead screw nut is provided on the horizontally moving base, and a vertical lead screw is configured in the vertical lead screw nut; the upper end of the vertical lead screw is connected to the output end of the drive motor five, the drive motor five is connected to the vertically moving base, and the vertically moving base can move in the vertical direction under the drive of the vertical lead screw.

10. A flange milling machine for generator units according to claim 1, characterized in that, The rotating seat is equipped with a connecting rod and a collector ring inside, and the rotating beam is provided with a through hole three to facilitate the passage of the cable; the cable starts from the collector ring, passes through the connecting rod cavity and the through hole three in sequence, and supplies power to the electrical equipment.

Images