CN112222232B

CN112222232B - Solve device that almag wheel hub front rim warp

Info

Publication number: CN112222232B
Application number: CN202011022008.XA
Authority: CN
Inventors: 彭以辉; 欧阳策斌
Original assignee: Shanghai Yaohong Technology Co ltd
Current assignee: Shanghai Yaohong Technology Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-04-13
Anticipated expiration: 2040-09-25
Also published as: CN112222232A

Abstract

The invention discloses a device for solving the problem of deformation of a front wheel rim of an aluminum alloy magnesium alloy wheel hub, which comprises a bottom plate, a supporting seat is fixedly arranged at the top of the bottom plate, a fixed block is fixedly arranged at one side of the top of the supporting seat, a movable block matched with the fixed block is arranged at the top of the supporting seat and at one side of the fixed block, a wheel hub is arranged between the movable block and the fixed block, one side edges of the movable block and the fixed block close to the wheel hub are provided with a first arc-shaped groove matched with the wheel hub, the middle part of the inner part of the movable block is provided with an installation groove, a first motor is arranged in the installation groove, the top of the first motor is provided with a first rotating block, the first rotating block is symmetrically provided with rotating grooves, arc-shaped grooves II are formed in the outer side edges of the first rotating blocks and located between the rotating grooves, and the second rotating blocks are mounted on one side edge of the first rotating blocks and located in the mounting groove.

Description

Solve device that almag wheel hub front rim warp

Technical Field

The invention relates to the technical field of hub repair, in particular to a device for solving the problem of deformation of a front wheel rim of an aluminum magnesium alloy hub.

Background

The hub is a rotating part of a wheel core, wherein the wheel core is connected with the inner profile steel of the tire through a stand column, namely a metal part which supports the center of the tire and is arranged on a shaft. Also called rim, steel ring, wheel, tyre bell, the hub is various according to the diameter, width, forming mode, material; the aluminum-magnesium alloy hub is one of a plurality of hubs, and the edge of a front wheel of the aluminum-magnesium alloy hub deforms in the using process, so that the deformation of the aluminum-magnesium alloy hub needs to be repaired; the existing method can not better repair the edge deformation of the front wheel of the aluminum-magnesium alloy hub, thereby influencing the normal use of the aluminum-magnesium alloy hub and further meeting the use requirements of people.

In conclusion, how to better repair the deformation of the front wheel rim of the aluminum magnesium alloy wheel hub is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The technical task of the invention is to provide a device for solving the deformation of the front wheel rim of the aluminum magnesium alloy hub so as to solve the problem of better repairing the deformation of the front wheel rim of the aluminum magnesium alloy hub.

The technical scheme of the invention is realized as follows:

a device for solving the deformation of a front wheel rim of an aluminum magnesium alloy wheel hub comprises a bottom plate, wherein a supporting seat is fixedly arranged at the top of the bottom plate, a fixed block is fixedly arranged on one side of the top of the supporting seat, a movable block matched with the fixed block is arranged on one side of the fixed block at the top of the supporting seat, the wheel hub is arranged between the movable block and the fixed block, a first arc-shaped groove matched with the wheel hub is formed in one side edge of the movable block close to the wheel hub, a mounting groove is formed in the middle of the inner part of the movable block, a first motor is arranged in the mounting groove, a first rotating block is arranged at the top of the first motor, rotating grooves are symmetrically formed in the first rotating block, a second arc-shaped groove is formed in the outer side edge of the first rotating block between the rotating grooves, a second rotating block is arranged on one side edge of the first rotating, and the two side edges of the second rotating block are arc-shaped surface structures matched with the two phase arc-shaped groove, the middle part of the top end and the middle part of the bottom end of the second rotating block are both provided with connecting strips, one end of the connecting strips far away from the second rotating block is both provided with a transmission block matched with the first rotating groove, the middle part of the second rotating block is provided with a first rotating rod in a penetrating way, the two ends of the first rotating rod are both provided with a first gear, one side edge of the first gear far away from the first rotating rod is both provided with a second gear matched with the first gear, one side edge of the second gear far away from the first gear is both provided with a second rotating rod, one side edge of the second rotating rod far away from the second gear is both provided with a third gear, one side edge of the movable block close to the hub is provided with a first groove, the first groove, a third rotating rod is installed on the fixed plate in a penetrating manner, a first rotating wheel is evenly installed on the third rotating rod, a fourth gear matched with the three-phase gear is installed at two ends of the third rotating rod, a second groove is formed in one side edge, close to the hub, of the fixed block, a fourth rotating rod is installed inside the second groove, a second rotating wheel is evenly installed on the fourth rotating rod, a movable clamping block is installed in the middle of the bottom end of the movable block, a threaded hole is formed in the middle of the movable clamping block in a penetrating manner, a movable clamping groove matched with the movable clamping block is formed in the position, corresponding to the movable clamping block, of the top of the supporting seat, a threaded rod matched with the threaded hole is installed inside the movable clamping groove, a machine groove is formed in one side of the movable clamping groove and located inside the supporting seat, just the one end of threaded rod with motor two is connected, the bottom of movable block just is located the locating piece is all installed to the both sides of activity fixture block, just the through-hole has all been run through to the inside of locating piece seted up, the top of supporting seat with the corresponding position of locating piece all seted up with the constant head tank of locating piece looks adaptation, the inside of constant head tank all install with the locating lever of through-hole looks adaptation, the mount is installed at the top of fixed block, install the pneumatic cylinder on the mount, the hydraulic stem is installed to the bottom of pneumatic cylinder, the clamp plate is installed to the bottom of hydraulic stem, the top of bottom plate just is located the switch board is installed to one side of supporting seat.

Preferably, a reinforcing plate is mounted at the bottom of the pressure plate.

Preferably, a fixed sleeve is mounted on the outer side edge of the hydraulic rod, and the outer side edge of the fixed sleeve is fixedly connected with the fixed frame through a fixed connecting rod.

Preferably, the control cabinet is internally provided with a PLC module, an electric module and a hydraulic cylinder control module.

Preferably, the mounting groove is formed in the rotating rod I, the rotating rod I is symmetrically sleeved with a first positioning shaft sleeve, and the outer side edge of the first positioning shaft sleeve is fixedly connected with the inner wall of the mounting groove.

Preferably, the inside of the mounting groove is provided with a second positioning shaft sleeve on the outer side edge of the second rotating rod, and the outer side edge of the second positioning shaft sleeve is fixedly connected with the inner wall of the mounting groove.

Preferably, the outer side edges of the first rotating wheel and the second rotating wheel are respectively sleeved with a rubber wheel sleeve.

Preferably, the first motor and the second motor are both powered by an external power supply, and the first motor and the second motor are both positive and negative motors.

Preferably, a third groove is formed in the top of the supporting seat and in a position corresponding to the hub, and a supporting plate matched with the three phases of the grooves is installed inside the third groove.

Preferably, a rod groove is formed in the bottom of the third groove, an electric telescopic rod is installed inside the rod groove, and the top of the electric telescopic rod is fixedly connected with the bottom of the supporting plate.

Compared with the prior art, the invention has the advantages and positive effects that:

1. through motor one with turning block one turning block two and turn wheel one with the interact of turning wheel two, the aluminium alloy wheel hub front wheel rim deformation that can be better is restoreed to be convenient for can reach better repair effect, and then be convenient for can be better satisfy people's user demand.

2. Through motor two with the threaded rod the activity fixture block and the locating piece with locating lever, cooperation the activity piece with the fixed block and the interaction of arc wall one is convenient for can be better right wheel hub fixes to be convenient for can be better restore aluminum alloy wheel hub front wheel rim deformation, and then be convenient for can be better satisfy people's user demand.

3. The method and the device well solve the problem of how to better repair the deformation of the front wheel rim of the aluminum-magnesium alloy hub, so that the repair operation can be better performed when the repair operation of the deformation of the front wheel rim of the aluminum-magnesium alloy hub is performed, the aluminum-magnesium alloy hub can be ensured to be normally used, and the use requirements of people can be better met.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of an architecture according to an embodiment of the present invention;

FIG. 2 is a schematic top view of a movable block and a fixed block according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a movable block according to an embodiment of the present invention;

FIG. 4 is a schematic view of a connection structure of a first rotating block and a second rotating block according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a fixing block according to an embodiment of the present invention;

FIG. 6 is a schematic partial side view of an embodiment in accordance with the invention;

FIG. 7 is a schematic top view of a portion of a base plate according to an embodiment of the present invention;

fig. 8 is a schematic diagram of the internal structure of the control cabinet according to the embodiment of the invention.

In the figure:

1. a base plate; 2. a supporting seat; 3. a fixed block; 4. a movable block; 5. a hub; 6. a first arc-shaped groove; 7. mounting grooves; 8. a first motor; 9. rotating the first block; 10. a rotating groove; 11. an arc-shaped groove II; 12. rotating the second block; 13. a connecting strip; 14. a transmission block; 15. rotating the first rod; 16. a first gear; 17. a second gear; 18. rotating the second rod; 19. a third gear; 20. a first groove; 21. a fixing plate; 22. rotating the rod III; 23. rotating the first wheel; 24. a fourth gear; 25. a second groove; 26. rotating the rod IV; 27. a second rotating wheel; 28. a movable clamping block; 29. a threaded hole; 30. a movable clamping groove; 31. a threaded rod; 32. a machine groove; 33. a second motor; 34. positioning blocks; 35. a through hole; 36. positioning a groove; 37. positioning a rod; 38. a fixed mount; 39. a hydraulic cylinder; 40. a hydraulic lever; 41. pressing a plate; 42. a control cabinet; 43. a first positioning shaft sleeve; 44. a second positioning shaft sleeve; 45. a rubber wheel sleeve; 46. a third groove; 47. a support plate; 48. a rod groove; 49. an electric telescopic rod.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The invention is further described with reference to the following figures and specific examples.

In the first embodiment, as shown in fig. 1 to 8, the device for solving the deformation of the front wheel rim of the aluminum-magnesium alloy wheel hub according to the embodiment of the present invention comprises a bottom plate 1, a supporting seat 2 is fixedly installed at the top of the bottom plate 1, a fixed block 3 is fixedly installed at one side of the top of the supporting seat 2, a movable block 4 adapted to the fixed block 3 is installed at the top of the supporting seat 2 and located at one side of the fixed block 3, a wheel hub 5 is installed between the movable block 4 and the fixed block 3, an arc-shaped groove 6 adapted to the wheel hub 5 is respectively formed at one side of the movable block 4 and one side of the fixed block 3 close to the wheel hub 5, an installation groove 7 is formed in the middle of the inside of the movable block 4, a motor one 8 is installed inside the installation groove 7, a rotating block one 9 is installed at the top of the motor one 8, and rotating, arc-shaped groove two 11 are arranged between the rotating grooves 10 and on the outer side edge of the first rotating block 9, one side edge of the first rotating block 9 is arranged in the mounting groove 7, and is provided with two rotating blocks 12, the two side edges of the two rotating blocks 12 are arc-shaped surface structures matched with the two arc-shaped grooves 11, connecting strips 13 are arranged at the middle parts of the top ends and the bottom ends of the two rotating blocks 12, the connecting strips 13 are far away from one ends of the two rotating blocks 12 and are provided with transmission blocks 14 matched with the rotating grooves 10, rotating rods 15 are arranged in the middle parts of the two rotating blocks 12 in a penetrating manner, gears one 16 are arranged at the two ends of the rotating rods one 15, gears one 16 are far away from one side edge of the rotating rods one 15 and are provided with gears two 17 matched with the gears one gears 16, gears two 17 are far away from one side edge of the gears one 16 and are provided with rotating rods 18, keep away from dwang two 18 gear two 17's a side all installs gear three 19, the movable block is close to wheel hub 5's a side is seted up fluted one 20, recess one 20 with mounting groove 7 intercommunication, fixed plate 21 is installed to the inside symmetry of recess one 20, run through on the fixed plate 21 and install dwang three 22, evenly install on the dwang three 22 and rotate wheel one 23, the both ends of dwang three 22 all install with gear four 24 of three 19 looks adaptations of gear, fixed block 3 is close to wheel hub 5's a side is seted up fluted two 25, just the internally mounted of recess two 25 has dwang four 26, evenly install on the dwang four 26 and rotate wheel two 27, through motor one 8 with turning block one 9 turning block two 12 and turning wheel one 23 with the interact of turning wheel two 27, the front wheel rim of the aluminum alloy wheel hub can be better repaired by deformation, so that a better repairing effect can be achieved, and the using requirements of people can be better met, a movable clamping block 28 is installed in the middle of the bottom end of the movable block 4, a threaded hole 29 is formed in the middle of the movable clamping block 28 in a penetrating mode, a movable clamping groove 30 matched with the movable clamping block 28 is formed in the position, corresponding to the movable clamping block 28, of the top of the supporting seat 2, a threaded rod 31 matched with the threaded hole 29 is installed in the movable clamping groove 30, a machine groove 32 is formed in one side of the movable clamping groove 30 and located in the supporting seat 2, a second motor 33 is installed in the machine groove 32, one end of the threaded rod 31 is connected with the second motor 33, and positioning blocks 34 are installed at the bottom of the movable block 4 and on two sides of the movable clamping block 28, a through hole 35 is formed in the positioning block 34 in a penetrating manner, positioning grooves 36 matched with the positioning block 34 are formed in the positions, corresponding to the positioning block 34, of the top of the supporting seat 2, positioning rods 37 matched with the through hole 35 are arranged in the positioning grooves 36, the hub 5 can be better fixed through the interaction of the motor II 33 and the threaded rod 31, the movable clamping block 28, the positioning block 34 and the positioning rods 37 and the cooperation of the movable block 4, the fixed block 3 and the arc-shaped groove I6, so that the deformation of the front rim of the aluminum alloy hub can be better repaired, the use requirements of people can be better met, a fixing frame 38 is arranged at the top of the fixed block 3, a hydraulic cylinder 39 is arranged on the fixing frame 38, and a hydraulic rod 40 is arranged at the bottom of the hydraulic cylinder 39, the bottom of the hydraulic rod 40 is provided with a pressing plate 41, and the top of the bottom plate 1 and one side of the supporting seat 2 are provided with a control cabinet 42.

In the second embodiment, as shown in fig. 1, a reinforcing plate is installed at the bottom of the pressing plate 41; a fixed sleeve is arranged on the outer side edge of the hydraulic rod 40, and the outer side edge of the fixed sleeve is fixedly connected with the fixed frame 38 through a fixed connecting rod; the front rim of the aluminum alloy hub can be better repaired, so that the use requirements of people can be better met.

In the third embodiment, as shown in fig. 1 and 8, a PLC module, an electrical module and a hydraulic cylinder control module are installed inside the control cabinet 42; can be better control to be convenient for can be better carry out aluminium alloy wheel hub front wheel rim and carry out the restoration operation, and then be convenient for can be better satisfy people's user demand.

In a fourth embodiment, as shown in fig. 3, a first positioning shaft sleeve 43 is symmetrically sleeved inside the mounting groove 7 and on the first rotating rod 15, and the outer side edges of the first positioning shaft sleeves 43 are fixedly connected with the inner wall of the mounting groove 7; a second positioning shaft sleeve 44 is sleeved inside the mounting groove 7 and on the outer side edge of the second rotating rod 18, and the outer side edge of the second positioning shaft sleeve 44 is fixedly connected with the inner wall of the mounting groove 7; through the location axle sleeve 43 with the interact of location axle sleeve two 44 can make dwang 15 with dwang 18 reaches better stability to be convenient for can ensure stable transmission between the structure, and then be convenient for can be better satisfy people's user demand.

In the fifth embodiment, as shown in fig. 3 and 5, rubber wheel sleeves 45 are respectively sleeved on the outer side edges of the first rotating wheel 23 and the second rotating wheel 27; through rubber wheel cover 45 can make rotate wheel 23 with rotate the better drive of wheel two 27 wheel hub 5 rotates to be convenient for can be better repair the operation, and then be convenient for can be better satisfy people's user demand.

In a sixth embodiment, as shown in fig. 3 and 7, the first motor 8 and the second motor 33 are both powered by an external power source, and the first motor 8 and the second motor 33 are positive and negative motors; the repairing operation of the front wheel rim of the aluminum alloy wheel hub can be better carried out, so that the using requirements of people can be better met.

In the seventh embodiment, as shown in fig. 1, a groove third 46 is formed in the top of the supporting seat 2 and at a position corresponding to the hub 5, a supporting plate 47 adapted to the groove third 46 is installed inside the groove third 46, a rod groove 48 is formed in the bottom of the groove third 46, an electric telescopic rod 49 is installed inside the rod groove 48, and the top of the electric telescopic rod 49 is fixedly connected to the bottom of the supporting plate 47; through the backup pad 47 with electric telescopic handle 49's interact can be after handling the completion, will wheel hub 5 is ejecting to be convenient for can be better satisfy people's user demand.

For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.

In practical application, the hub 5 is placed on the supporting seat 2, the motor two 33 is started to drive the threaded rod 31 to rotate, the movable clamping block 28 is driven to move under the action of the threaded hole 29, so that the movable block 4 is driven to move, the hub 5 is fixed between the movable block 4 and the fixed block 3, the motor one 8 is started to drive the rotating block one 9 to rotate, the rotating block one 9 drives the rotating block two 12 to rotate, the rotating block two 12 drives the rotating block one 15 to rotate, so that the gear one 16 and the gear two 17 as well as the rotating block three 22 and the gear three 19 are driven to rotate under the interaction of the gear four 24, so that the rotating wheel one 23 rotates, the second rotating wheel 27 is matched to drive the hub 5 to rotate, and the interaction between the hydraulic cylinder 39 and the hydraulic rod 40 and the interaction between the hydraulic cylinder 39 and the pressing plate 41 are matched to perform the repairing operation of the hub 5; the whole makes when carrying out the repair operation that almag wheel hub front wheel edge warp, can be better carry out the repair operation to ensure that almag wheel hub can be normal use, and then be convenient for can be better satisfy people's user demand.

The present invention can be easily implemented by those skilled in the art from the above detailed description. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.

Claims

1. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy wheel hub is characterized by comprising a bottom plate (1), wherein a supporting seat (2) is fixedly installed at the top of the bottom plate (1), a fixed block (3) is fixedly installed on one side of the top of the supporting seat (2), a movable block (4) matched with the fixed block (3) is installed at one side of the top of the supporting seat (2) and located on the fixed block (3), a wheel hub (5) is installed between the movable block (4) and the fixed block (3), an arc-shaped groove I (6) matched with the wheel hub (5) is formed in each of one side edge of the movable block (4) and one side edge of the fixed block (3) close to the wheel hub (5), an installation groove (7) is formed in the middle of the inner portion of the movable block (4), a motor I (8) is, the top of the first motor (8) is provided with a first rotating block (9), the first rotating block (9) is symmetrically provided with a first rotating groove (10), an arc-shaped groove two (11) is formed in the outer side edge of the first rotating block (9) between the rotating grooves (10), one side edge of the first rotating block (9) is located in the mounting groove (7), a second rotating block (12) is arranged inside the mounting groove (7), the two side edges of the second rotating block (12) are arc-shaped surface structures matched with the arc-shaped groove two (11), the middle part of the top end and the middle part of the bottom end of the second rotating block (12) are provided with a connecting strip (13), one end of the second rotating block (12), far away from the connecting strip (13), is provided with a transmission block (14) matched with the rotating groove (10), the middle part of the second rotating block (12) is provided with a first rotating rod (15) in a penetrating mode, gear one (16) is all installed at the both ends of dwang one (15), keep away from gear one (16) a side of dwang one (15) all install with gear two (17) of gear one (16) looks adaptation, keep away from gear two (17) a side of gear one (16) all installs dwang two (18), dwang two (18) are kept away from gear three (19) are all installed to a side of gear two (17), the movable block is close to wheel hub's (5) a side is seted up fluted one (20), recess one (20) with mounting groove (7) intercommunication, fixed plate (21) are installed to the internal symmetry of recess one (20), run through on fixed plate (21) and install dwang three (22), evenly install on dwang three (22) and rotate wheel one (23), the dwang is all installed at the both ends of three (22) with gear four (24) of gear three (19) looks adaptation ) The wheel hub structure is characterized in that one side of the wheel hub (5) is provided with a groove two (25), the inner part of the groove two (25) is provided with a rotating rod four (26), the rotating rod four (26) is evenly provided with a rotating wheel two (27), the bottom middle part of the movable block (4) is provided with a movable clamping block (28), the middle part of the movable clamping block (28) is penetrated through a threaded hole (29), the top of the supporting seat (2) and the corresponding position of the movable clamping block (28) are provided with a movable clamping groove (30) matched with the movable clamping block (28), the inner part of the movable clamping groove (30) is provided with a threaded rod (31) matched with the threaded hole (29), one side of the movable clamping groove (30) is positioned in the inner part of the supporting seat (2), and the inner part of the machine groove (32) is provided with a motor two (33), just the one end of threaded rod (31) with motor two (33) is connected, the bottom of movable block (4) just is located locating piece (34) is all installed to the both sides of activity fixture block (28), just the inside of locating piece (34) all runs through and has seted up through-hole (35), the top of supporting seat (2) with the position that locating piece (34) is corresponding all seted up with constant head tank (36) of locating piece (34) looks adaptation, the inside of constant head tank (36) all install with locating lever (37) of through-hole (35) looks adaptation, mount (38) are installed at the top of fixed block (3), pneumatic cylinder (39) are installed on mount (38), hydraulic stem (40) are installed to the bottom of pneumatic cylinder (39), clamp plate (41) are installed to the bottom of hydraulic stem (40), the top of bottom plate (1) just is located switch board (42) is installed to one side of supporting seat (2), and a reinforcing plate is arranged at the bottom of the pressing plate (41).

2. The device for solving the problem of deformation of the front rim of the aluminum-magnesium alloy hub is characterized in that a fixing sleeve is installed on the outer side edge of the hydraulic rod (40), and the outer side edge of the fixing sleeve is fixedly connected with the fixing frame (38) through a fixing connecting rod.

3. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy hub is characterized in that a PLC module, an electric module and a hydraulic cylinder control module are installed inside the control cabinet (42).

4. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy hub is characterized in that a first positioning shaft sleeve (43) is symmetrically sleeved inside the mounting groove (7) and on the first rotating rod (15), and the outer side edges of the first positioning shaft sleeve (43) are fixedly connected with the inner wall of the mounting groove (7).

5. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy hub is characterized in that a second positioning shaft sleeve (44) is sleeved inside the mounting groove (7) and on the outer side edge of the second rotating rod (18), and the outer side edge of the second positioning shaft sleeve (44) is fixedly connected with the inner wall of the mounting groove (7).

6. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy hub is characterized in that rubber wheel sleeves (45) are sleeved on the outer side edges of the first rotating wheel (23) and the second rotating wheel (27).

7. The device for solving the problem of deformation of the front wheel rim of the aluminum-magnesium alloy hub is characterized in that the first motor (8) and the second motor (33) are both powered by an external power supply, and the first motor (8) and the second motor (33) are positive and negative motors.

8. A device for solving the problem of deformation of a front rim of an aluminum magnesium alloy hub according to claim 7, wherein a third groove (46) is formed in the top of the supporting seat (2) and at a position corresponding to the hub (5), and a supporting plate (47) matched with the third groove (46) is installed inside the third groove (46).

9. The device for solving the problem of deformation of the front rim of the aluminum-magnesium alloy hub is characterized in that a rod groove (48) is formed in the bottom of the third groove (46), an electric telescopic rod (49) is installed inside the rod groove (48), and the top of the electric telescopic rod (49) is fixedly connected with the bottom of the supporting plate (47).