Vehicle generator rotor shaft mounting structure

Abstract

The present invention relates to the technical field of generators, and discloses a rotor shaft mounting structure for a vehicle generator, comprising a front claw pole and a rear claw pole with concentric holes and arranged in a relatively cross manner, and a rotor shaft that passes through the two concentric holes with interference fit, wherein a rotor core is fixedly mounted inside the front claw pole and the rear claw pole, a magnetic field winding is sleeved on the outside of the rotor core, a collector ring is fixedly mounted on one end of the outside of the rotor shaft, and an anti-deformation structure for reducing shaft deformation generated when the rotor shaft is pressed into the concentric hole is arranged on the outside of the rotor shaft. The present invention simplifies the assembly process of the generator rotor shaft by setting the anti-deformation structure, and this method can reduce the parts adjustment sleeve and improve the assembly efficiency. At the same time, since the set press-in ring has an outer diameter larger than the concentric hole, the load it can withstand is also larger, which can reduce the shaft deformation generated when the rotor shaft is pressed.

Description

Technical Field

[0001] The invention relates to the technical field of generators, in particular to a rotor shaft mounting structure for a vehicle generator. Background Art

[0002] The vehicle generator is the main power source of the vehicle. Its function is to supply power to all electrical equipment (except the starter) and charge the battery when the engine is running normally. The assembly process of the rotor shaft of the vehicle generator is as follows: first merge the front and rear pole claws, and then the middle rotor shaft Fig.15 The surface in the direction of the middle arrow is pressed into the claw pole by force, the step surface touches the claw pole surface, the other side presses the adjustment sleeve to fix it, and finally the adjustment sleeve surface is turned to ensure verticality.

[0003] However, the disadvantage of the above-mentioned automotive generator rotor shaft assembly process is that the force area of ​​the rotor shaft is small when it is pressed in, and the shaft is prone to large runout, so when the shaft is pressed, the shaft section is prone to bending, which leads to damage and waste of the rotor shaft, increases production costs, and is difficult to ensure the firmness of the front and rear pole claws, making the front and rear pole claws prone to shaking during use, thereby affecting the normal operation of the generator. To this end, we propose a rotor shaft installation structure for automotive generators. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle generator rotor shaft installation structure to solve the disadvantages of the above-mentioned vehicle generator rotor shaft assembly process, that is, the force area of ​​the rotor shaft is small when the rotor shaft is pressed in, and the shaft is prone to large vibration, so that the shaft section is prone to bending when the shaft is pressed, thereby causing damage and waste of the rotor shaft and increasing production costs.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rotor shaft mounting structure for a vehicle generator, comprising a front claw pole and a rear claw pole having concentric holes and arranged in a relatively cross manner, and a rotor shaft that passes through the two concentric holes with interference fit, a rotor core is fixedly mounted inside the front claw pole and the rear claw pole, a magnetic field winding is sleeved on the outside of the rotor core, a collector ring is fixedly mounted on one end of the outside of the rotor shaft, an anti-deformation structure is arranged on the outside of the rotor shaft for reducing shaft deformation generated when the rotor shaft is pressed into the concentric hole, an inner chamber is opened inside the rotor shaft along the length direction of the rotor shaft, and a claw pole fixing unit is arranged inside the inner chamber for locking and fixing the front claw pole and the rear claw pole.

[0006] Preferably, the anti-deformation structure includes a riveting groove opened on the outer wall of the rotor shaft and a recessed portion centered on the concentric hole opened at the end of the front claw pole away from the rear claw pole, a riveting convex ring that can be riveted into the riveting groove is installed inside the recessed portion, and a press ring is fixedly installed on the end of the outside of the rotor shaft away from the riveting groove, and the outer diameter of the press ring is larger than the inner diameter of the concentric hole.

[0007] Preferably, the claw pole fixing unit includes a pre-locking mechanism for preliminarily fixing the front claw pole and the rear claw pole, the pre-locking mechanism includes a mounting ring fixedly installed at one end of the inner cavity, the outer wall of the mounting ring is provided with a limiting groove, a movable plate is slidably installed inside the limiting groove, locking strips are fixedly installed on both sides of one end of the outer wall of the movable plate, an outer sleeve is fixedly installed at one end of the mounting ring, the outer wall of the outer sleeve is provided with a notch for the movable plate to move, a sliding rod is slidably installed near the center inside the mounting ring, the outer wall of the sliding rod is provided with a hinged component for the movable plate to be lifted and lowered, and the inner wall surface of the concentric holes of the front claw pole and the rear claw pole is provided with a plurality of locking notches matching the locking strips.

[0008] Preferably, the hinge assembly includes a storage groove opened around the outer wall of the sliding rod and a sliding hole opened on both sides of the outer wall of the movable plate, a plurality of first rotating shafts are fixedly installed on the inner wall surface of the storage groove, a first hinge block is rotatably installed on the outside of the first rotating shaft, a second rotating shaft is rotatably installed on the end of the first hinge block away from the first rotating shaft, second hinge blocks are fixedly installed at both ends of the second rotating shaft, a third rotating shaft is rotatably installed on one end of the second hinge block, and the third rotating shaft is fixedly installed inside the notch, a fourth rotating shaft is rotatably installed on the end of the second hinge block away from the third rotating shaft, and the fourth rotating shaft is slidably installed inside the sliding hole.

[0009] Preferably, the claw pole fixing unit also includes a trigger mechanism for driving the pre-locking mechanism to perform a locking operation, the trigger mechanism includes a telescopic hole opened in the rotor shaft at the rivet groove and a butt joint fixedly installed on the end of the sliding rod, a sliding block is slidably installed in the telescopic hole, an extrusion rod is fixedly installed in the sliding block, one end of the extrusion rod extends to the interior of the inner chamber and a trigger block is fixedly installed, and the trigger block is a wedge-shaped structure, one end of the extrusion rod away from the trigger block extends into the rivet groove, a second spring is sleeved on the outside of the extrusion rod, and the second spring is fixedly installed on the bottom end of the slider.

[0010] Preferably, the claw pole fixing unit also includes a fixing mechanism for re-fixing the rear claw pole, the fixing mechanism including a fixing ring fixedly installed at one end of the inner chamber and a conical head fixedly installed at the end of the sliding rod away from the abutment head, the fixing ring is provided with accommodating grooves all around the inside, and the axes of the accommodating grooves are respectively oriented toward the center points of the fixing rings, a piston plate is slidably installed inside the accommodating groove, a fixing rod is fixedly installed inside the piston plate, one end of the fixing rod passes through the accommodating groove and extends to the inner chamber, the other end of the fixing rod extends to the outside of the rotor shaft and is provided with a clamping portion, a first spring is fixedly installed at the bottom end of the piston plate, and the first spring is sleeved on the outside of the fixing rod, and a plurality of sockets matching the clamping portion are provided at the end of the rear claw pole away from the front claw pole.

[0011] Preferably, a guide groove is provided on the inner wall surface of the concentric hole of the rear claw pole, one end of the guide groove passes through the inner wall surface of the concentric hole of the front claw pole, and a guide bar matching the guide groove is fixedly mounted on the outer wall surface of the rotor shaft.

[0012] Preferably, lifting slots for the locking strip to pass through are formed around the outer wall of the rotor shaft.

[0013] Preferably, a plurality of arc-shaped openings are respectively formed on both sides of one end of the movable plate away from the locking strip, and the positions of the arc-shaped openings correspond one-to-one to the positions of the third rotating shaft.

[0014] Preferably, the depth of the notch is consistent with the thickness of the movable plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides an anti-deformation structure. When installing the generator rotor shaft, the assembly process is as follows: first, the front claw pole and the rear claw pole are combined, and then the press-in ring provided on the rotor shaft is pressed to press the rotor shaft into the concentric holes of the front claw pole and the rear claw pole. Finally, the riveting convex ring provided on the end surface of the front claw pole away from the rear claw pole is pressed into the riveting groove to fix the front claw pole, thereby completing the installation of the rotor shaft. This method can reduce the number of parts adjustment sleeves and improve the assembly efficiency. At the same time, since the outer diameter of the press-in ring is larger than the concentric hole, the load it can withstand is also larger, which can reduce the shaft deformation caused by the rotor shaft being pressed.

[0017] 2. The claw pole fixing unit provided in the present invention can squeeze the trigger mechanism when the riveting convex ring provided on the extreme end surface of the front claw is pressed into the riveting groove. The riveting convex ring can drive the pre-locking mechanism to perform locking operation through the trigger mechanism, thereby realizing synchronous locking and fixing of the front claw pole and the rear claw pole. At the same time, the pre-locking mechanism can also drive the fixing mechanism to fix the rear claw pole. Therefore, the front claw pole is fixed by pressing the riveting convex ring into the riveting groove, and then the rear claw pole is fixed by the fixing mechanism. This can realize fixing of the ends of the front claw pole and the rear claw pole that are far away from each other, preventing the front claw pole and the rear claw pole from shaking and position displacement during operation, thereby ensuring the normal operation of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A first-perspective stereoscopic view of a vehicle generator rotor shaft mounting structure;

[0019] Figure 2 A second perspective stereoscopic view of the vehicle generator rotor shaft mounting structure;

[0020] Figure 3 This is an exploded view of the vehicle generator rotor shaft mounting structure;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of a vehicle generator rotor shaft mounting structure;

[0022] Figure 5 for Figure 4 A is a schematic diagram of the enlarged structure of the middle part;

[0023] Figure 6 A schematic diagram of the rotor shaft structure of a vehicle generator rotor shaft installation structure;

[0024] Figure 7 A schematic diagram of a partial cross-sectional structure of a rotor shaft of a vehicle generator rotor shaft installation structure;

[0025] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of B;

[0026] Fig. 9 A first-person perspective view of a pre-locking mechanism and a fixing mechanism of a vehicle generator rotor shaft mounting structure;

[0027] Fig.10 A second-angle perspective view of the pre-locking mechanism and the fixing mechanism of the vehicle generator rotor shaft mounting structure;

[0028] Fig.11 A schematic diagram of the cross-sectional structure of a pre-locking mechanism of a vehicle generator rotor shaft mounting structure;

[0029] Fig.12 A schematic diagram of the cross-sectional structure of a fixing mechanism of a vehicle generator rotor shaft mounting structure;

[0030] Fig.13 It is a schematic diagram of the cross-sectional structure of the front claw pole and the rear claw pole of the rotor shaft mounting structure of the vehicle generator;

[0031] Fig.14 It is a schematic diagram of the assembly of the rotor shaft mounting structure of a vehicle generator;

[0032] Fig.15 The figure is a schematic diagram of the prior art assembly of a rotor shaft of a vehicle generator.

[0033] In the figure: 10-front claw pole; 11-recessed portion; 12-riveted convex ring; 20-rear claw pole; 21-guide groove; 22-locking notch; 23-insert hole; 30-rotor shaft; 31-pressing ring; 32-riveted groove; 33-inner chamber; 34-lifting notch; 35-guide bar; 40-collector ring; 50-rotor core; 60-field winding; 70-pre-locking mechanism; 71-mounting ring; 711-limiting groove; 72-outer sleeve; 721-notch; 73-sliding rod; 731-conical head; 732-butt joint; 733 -storage slot; 74-movable plate; 741-sliding hole; 742-arc-shaped mouth; 75-locking strip; 76-first hinge block; 761-first rotating shaft; 762-second rotating shaft; 77-second hinge block; 771-third rotating shaft; 772-fourth rotating shaft; 80-fixing mechanism; 81-fixing ring; 82-accommodating groove; 83-piston plate; 84-fixing rod; 85-first spring; 86-clamping part; 90-trigger mechanism; 91-telescopic hole; 92-sliding block; 93-extrusion rod; 94-second spring; 95-trigger block. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a technical solution: a rotor shaft mounting structure for a vehicle generator, comprising a front claw pole 10 and a rear claw pole 20 having concentric holes and arranged in a relatively cross manner, and a rotor shaft 30 that passes through the two concentric holes with interference fit, a rotor core 50 is fixedly mounted inside the front claw pole 10 and the rear claw pole 20, a field winding 60 is sleeved on the outside of the rotor core 50, a collector ring 40 is fixedly mounted on one end of the outside of the rotor shaft 30, an anti-deformation structure for reducing shaft deformation generated when the rotor shaft 30 is pressed into the concentric hole is arranged on the outside of the rotor shaft 30, an inner chamber 33 is opened inside the rotor shaft 30 along the length direction of the rotor shaft 30, and a claw pole fixing unit for locking and fixing the front claw pole 10 and the rear claw pole 20 is arranged inside the inner chamber 33.

[0037] In the preferred technical solution of the present embodiment, the anti-deformation structure includes a riveting groove 32 opened on the outer wall of the rotor shaft 30 and a recessed portion 11 centered on the concentric hole opened at the end of the front claw pole 10 away from the rear claw pole 20, and a riveting convex ring 12 that can be riveted and embedded in the riveting groove 32 is installed inside the recessed portion 11, and a press-in ring 31 is fixedly installed on the end of the outside of the rotor shaft 30 away from the riveting groove 32, and the outer diameter of the press-in ring 31 is larger than the inner diameter of the concentric hole.

[0038] The assembly process of the generator rotor shaft is as follows: firstly, the front claw pole 10 and the rear claw pole 20 are combined, and then the press-in ring 31 arranged on the rotor shaft 30 is pressed. Fig.14 In the direction of the middle arrow, the rotor shaft 30 is interference pressed into the concentric holes of the front claw pole 10 and the rear claw pole 20, and finally the riveting convex ring 12 convexly arranged on the end surface of the front claw pole 10 away from the rear claw pole 20 is pressed into the riveting groove 32 to fix the front claw pole 10, thereby completing the installation of the rotor shaft. This method can reduce the parts adjustment sleeve and improve the assembly efficiency. At the same time, since the set press-in ring 31 has an outer diameter larger than the concentric hole, it can withstand a larger load, which can reduce the shaft deformation caused by the rotor shaft 30 when the shaft is pressed.

[0039] Embodiment 2

[0040] See also Figure 4-Figure 13The present invention provides a technical solution: a rotor shaft installation structure for a vehicle generator, a claw pole fixing unit includes a pre-locking mechanism 70 for preliminarily fixing the front claw pole 10 and the rear claw pole 20, the pre-locking mechanism 70 includes a mounting ring 71 fixedly installed at one end of the inner chamber 33, a limiting groove 711 is arranged around the outer wall of the mounting ring 71, a moving plate 74 is slidably installed inside the limiting groove 711, locking strips 75 are fixedly installed on both sides of one end of the outer wall of the moving plate 74, a lifting notch 34 is arranged around the outer wall of the rotor shaft 30 for the locking strip 75 to pass through, an outer sleeve 72 is fixedly installed at one end of the mounting ring 71, a notch 721 is arranged around the outer wall of the outer sleeve 72 for the moving plate 74 to move, a sliding rod 73 is slidably installed near the center of the mounting ring 71, and a hinge assembly is arranged around the outer wall of the sliding rod 73 for the moving plate 74 to move up and down, the front claw pole 1 A plurality of locking notches 22 matching the locking strip 75 are provided on the inner wall surface of the concentric hole of 0 and the rear claw pole 20. The hinge assembly includes a receiving groove 733 provided around the outer wall of the sliding rod 73 and a sliding hole 741 provided on both sides of the outer wall of the movable plate 74. A plurality of first rotating shafts 761 are fixedly installed on the inner wall surface of the receiving groove 733. A first hinge block 76 is rotatably installed on the outside of the first rotating shaft 761. A second rotating shaft 762 is rotatably installed on one end of the first hinge block 76 away from the first rotating shaft 761. Second hinge blocks 77 are fixedly installed on both ends of the second rotating shaft 762. A third rotating shaft 771 is rotatably installed on one end of the second hinge block 77, and the third rotating shaft 771 is fixedly installed inside the notch 721. A fourth rotating shaft 772 is rotatably installed on one end of the second hinge block 77 away from the third rotating shaft 771. The fourth rotating shaft 772 is slidably installed inside the sliding hole 741.

[0041] When the locking cam 73 is in the state of being moved, the locking cam 73 will be in the state of being moved forward, so that the locking cam 73 can be locked in the state of being moved forward, thereby preventing the locking cam 73 from sliding out of the state of being moved forward.

[0042] It should be noted that, in the initial state, the first hinge block 76 is folded and retracted into the storage groove 733, and the fourth shaft 772 is located at one end of the sliding hole 741 away from the abutment head 732. When the movable plate 74 is stretched outward, the fourth shaft 772 will slide in the sliding hole 741 and move to the other side of the sliding hole 741.

[0043] In the preferred technical solution of the present embodiment, the claw pole fixing unit also includes a trigger mechanism 90 for driving the pre-locking mechanism 70 to perform a locking operation, the trigger mechanism 90 includes a telescopic hole 91 opened in the rotor shaft 30 at the rivet groove 32 and a butt joint 732 fixedly installed at the end of the sliding rod 73, a slider 92 is slidably installed in the telescopic hole 91, an extrusion rod 93 is fixedly installed in the slider 92, one end of the extrusion rod 93 extends into the inner chamber 33 and a trigger block 95 is fixedly installed, and the trigger block 95 is a wedge-shaped structure, and one end of the extrusion rod 93 away from the trigger block 95 extends into the rivet groove 32, and the end of the extrusion rod 93 is an arc-shaped structure, which is convenient for the riveting convex ring 12 to squeeze the extrusion rod 93, and a second spring 94 is sleeved on the outside of the extrusion rod 93, and the second spring 94 is fixedly installed at the bottom end of the slider 92.

[0044] Furthermore, when the riveting convex ring 12 protruding on the end face of the front claw pole 10 is pressed into the riveting groove 32, the riveting convex ring 12 will squeeze the extrusion rod 93, and the extrusion rod 93 will move to the side away from the riveting groove 32, and at the same time, it can also drive the slider 92 to squeeze the second spring 94. When the extrusion rod 93 moves, the trigger block 95 can be moved toward the abutment joint 732. Since the trigger block 95 is a wedge-shaped structure, it can squeeze the abutment joint 732, so that the abutment joint 732 can drive the sliding rod 73 to move.

[0045] In the preferred technical solution of the present embodiment, the claw pole fixing unit also includes a fixing mechanism 80 for re-fixing the rear claw pole 20, the fixing mechanism 80 includes a fixing ring 81 fixedly installed at one end of the inner chamber 33 and a conical head 731 fixedly installed at the end of the sliding rod 73 away from the abutment head 732, the fixing ring 81 is provided with a receiving groove 82 around the inside, and the axis of the receiving groove 82 is respectively oriented to the center point of the fixing ring 81, a piston plate 83 is slidably installed inside the receiving groove 82, a fixing rod 84 is fixedly installed inside the piston plate 83, one end of the fixing rod 84 passes through the receiving groove 82 and extends to the inner chamber 33, the other end of the fixing rod 84 extends to the outside of the rotor shaft 30 and is provided with a clamping portion 86, a first spring 85 is fixedly installed at the bottom end of the piston plate 83, and the first spring 85 is sleeved on the outside of the fixing rod 84, and a plurality of sockets 23 compatible with the clamping portion 86 are provided at the end of the rear claw pole 20 away from the front claw pole 10.

[0046] When the locking cam 72 is in the unlocked position, the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, so that the locking cam 72 is locked and the locking cam 72 is in the unlocked position.

[0047] It should be noted that the end of the clamping portion 86 of the fixed insert rod 84 is flush with the end of the rear claw pole 20 , and the clamping portion 86 of the fixed insert rod 84 has no protrusion, so it will not affect the pressure of the press-in ring 31 on the rear claw pole 20 .

[0048] In the preferred technical solution of the present embodiment, a guide groove 21 is provided on the inner wall surface of the concentric hole of the rear claw pole 20, and one end of the guide groove 21 passes through the inner wall surface of the concentric hole of the front claw pole 10. A guide bar 35 matching the guide groove 21 is fixedly installed on the outer wall surface of the rotor shaft 30. When the rotor shaft 30 is pressed into the concentric hole with interference fit, the guide bar 35 arranged on the outer wall of the rotor shaft 30 will be stuck in the guide groove 21 of the concentric hole, so that it plays a guiding role, reduces the deviation of the rotor shaft 30 when it is inserted into the concentric hole, thereby further reducing the deformation of the shaft section of the rotor shaft 30 when it is inserted, and can also ensure that the locking bar 75 corresponds to the locking notch 22 on the inner wall of the concentric hole of the front claw pole 10 and the rear claw pole 20.

[0049] In the preferred technical solution of the present embodiment, a plurality of arc-shaped openings 742 are respectively provided on both sides of one end of the movable plate 74 away from the locking strip 75. The positions of the arc-shaped openings 742 correspond one-to-one with the positions of the third rotating shaft 771 and will not affect the folding and contraction of the movable plate 74. The depth of the notch 721 is consistent with the thickness of the movable plate 74.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A rotor shaft mounting structure for a vehicle generator, comprising a front claw pole (10) and a rear claw pole (20) having concentric holes and arranged in a mutually opposite and cross manner, and a rotor shaft (30) passing through the two concentric holes with interference fit, wherein a rotor core (50) is fixedly mounted inside the front claw pole (10) and the rear claw pole (20), a field winding (60) is sleeved outside the rotor core (50), and a collector ring (40) is fixedly mounted on one end of the rotor shaft (30), characterized in that: An anti-deformation structure for reducing shaft deformation when the rotor shaft (30) is pressed into the concentric hole is arranged outside the rotor shaft (30); an inner chamber (33) is opened inside the rotor shaft (30) along the length direction of the rotor shaft (30); a claw pole fixing unit for locking and fixing the front claw pole (10) and the rear claw pole (20) is arranged inside the inner chamber (33); The claw pole fixing unit comprises a pre-locking mechanism (70) for preliminarily fixing the front claw pole (10) and the rear claw pole (20), the pre-locking mechanism (70) comprising a mounting ring (71) fixedly mounted on one end of the inner chamber (33), the outer wall of the mounting ring (71) being provided with a limiting groove (711) around the periphery, a moving plate (74) being slidably mounted inside the limiting groove (711), locking strips (75) being fixedly mounted on both sides of one end of the outer wall of the moving plate (74), and the mounting ring (71) being provided with a locking strip (75) on one side of the outer wall of the moving plate (74). An outer sleeve (72) is fixedly mounted at the end, and notches (721) are provided around the outer wall of the outer sleeve (72) for the movable plate (74) to move. A sliding rod (73) is slidably mounted near the center inside the mounting ring (71), and hinge components are provided around the outer wall of the sliding rod (73) for the movable plate (74) to move up and down. The inner wall surfaces of the concentric holes of the front claw pole (10) and the rear claw pole (20) are provided with a plurality of locking notches (22) adapted to the locking strip (75); The hinge assembly comprises a receiving groove (733) provided around the outer wall of the sliding rod (73) and a sliding hole (741) provided on both sides of the outer wall of the movable plate (74); a plurality of first rotating shafts (761) are fixedly installed on the inner wall surface of the receiving groove (733); a first hinge block (76) is rotatably installed on the outside of the first rotating shaft (761); a second rotating shaft (762) is rotatably installed on one end of the first hinge block (76) away from the first rotating shaft (761); second hinge blocks (77) are fixedly installed on both ends of the second rotating shaft (762); a third rotating shaft (771) is rotatably installed on one end of the second hinge block (77), and the third rotating shaft (771) is fixedly installed inside the notch (721); a fourth rotating shaft (772) is rotatably installed on one end of the second hinge block (77) away from the third rotating shaft (771); and the fourth rotating shaft (772) is slidably installed inside the sliding hole (741); The claw pole fixing unit further comprises a trigger mechanism (90) for driving the pre-locking mechanism (70) to perform a locking operation, the trigger mechanism (90) comprising a telescopic hole (91) opened inside the rotor shaft (30) at the rivet pressing groove (32) and a butt joint (732) fixedly mounted on the end of the sliding rod (73), a sliding block (92) being slidably mounted inside the telescopic hole (91), an extrusion rod (93) being fixedly mounted inside the sliding block (92), one end of the extrusion rod (93) extending into the inner chamber (33) and a trigger block (95) being fixedly mounted thereon, and the trigger block (95) being of a wedge-shaped structure, one end of the extrusion rod (93) away from the trigger block (95) extending into the rivet pressing groove (32), a second spring (94) being sleeved on the outside of the extrusion rod (93), and the second spring (94) being fixedly mounted on the bottom end of the sliding block (92); The claw pole fixing unit further comprises a fixing mechanism (80) for re-fixing the rear claw pole (20), the fixing mechanism (80) comprising a fixing ring (81) fixedly mounted at one end of the inner chamber (33) and a conical head (731) fixedly mounted at one end of the sliding rod (73) away from the abutment head (732), the fixing ring (81) is provided with a receiving groove (82) around the inside, and the axis of the receiving groove (82) is respectively oriented to the center point of the fixing ring (81), a piston plate (83) is slidably mounted inside the receiving groove (82), and the movable A fixed plug rod (84) is fixedly installed inside the plug plate (83), one end of the fixed plug rod (84) passes through the accommodating groove (82) and extends to the inside of the inner chamber (33), the other end of the fixed plug rod (84) extends to the outside of the rotor shaft (30) and is provided with a clamping portion (86), a first spring (85) is fixedly installed at the bottom end of the piston plate (83), and the first spring (85) is sleeved on the outside of the fixed plug rod (84), and a plurality of sockets (23) adapted to the clamping portion (86) are provided at one end of the rear claw pole (20) away from the front claw pole (10); A plurality of arc-shaped openings (742) are respectively provided on both sides of one end of the movable plate (74) away from the locking strip (75), and the positions of the arc-shaped openings (742) correspond one to one with the positions of the third rotating shaft (771).

2. The vehicle generator rotor shaft mounting structure according to claim 1, characterized in that: The anti-deformation structure comprises a riveting groove (32) formed on the outer wall of the rotor shaft (30) and a recessed portion (11) formed on one end of the front claw pole (10) away from the rear claw pole (20) and centered on the concentric hole, wherein a riveting convex ring (12) capable of being riveted and embedded in the riveting groove (32) is installed inside the recessed portion (11), and a pressing ring (31) is fixedly installed on one end of the rotor shaft (30) away from the riveting groove (32), and the outer diameter of the pressing ring (31) is greater than the inner diameter of the concentric hole.

3. The vehicle generator rotor shaft mounting structure according to claim 1, characterized in that: A guide groove (21) is provided on the inner wall surface of the concentric hole of the rear claw pole (20), one end of the guide groove (21) penetrates the inner wall surface of the concentric hole of the front claw pole (10), and a guide bar (35) adapted to the guide groove (21) is fixedly mounted on the outer wall surface of the rotor shaft (30).

4. The vehicle generator rotor shaft mounting structure according to claim 1, characterized in that: Lifting notches (34) for the locking strip (75) to pass through are formed around the outer wall of the rotor shaft (30).

5. The vehicle generator rotor shaft mounting structure according to claim 1, characterized in that: The depth of the notch (721) is consistent with the thickness of the movable plate (74).

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