Automobile starter rotor

Abstract

The utility model relates to the technical field of starter rotors, in particular to an automobile starter rotor, which comprises a rotor shaft and a first spring, the outer side of the rotor shaft is sleeved with an iron core, the outer side of the iron core is wound with a coil, one end of the rotor shaft is fixedly provided with a commutator, and the other end of the rotor shaft is fixedly provided with a second spring. The outer side of the iron core is sleeved with a first protective sleeve. The device has the beneficial effects that a shifting rod is shifted to rotate, one side of the shifting rod can slide in a movable groove in a plug pin, the plug pin is shifted to move so as to extrude a first spring on one side, after the plug pin is disengaged from a fixing block, a second spring can reset, and therefore a first protection sleeve is pushed to move upwards; when the first protective sleeve moves upwards, the plug pin and the clamping groove in the fixing block can be driven to be staggered, at the moment, when the shifting rod is loosened, the plug pin cannot be clamped with the fixing block any more, and the first protective sleeve and the second protective sleeve can be separated.

Description

Technical Field

[0001] The utility model relates to the field of starter rotors, in particular to an automobile starter rotor. Background Art

[0002] The car starter rotor is a key component in the car starting system. Its main function is to transfer the torque of the motor to the crankshaft of the diesel engine as an intermediate hub. The starter rotor is a key component to ensure the normal start and operation of the car, and its normal operation is crucial to the overall performance of the car.

[0003] For example, a car starter rotor structure with publication number CN219779872U can be used to align the block on the top of the second connecting plate with the slot on the top of the first connecting plate, while the first protective shell and the second protective shell are sleeved on the outside of the core body. Before the block enters the slot, the staff can drag the movable plate through the fixed plate on the top of the cover plate, so that the movable plate can move with the connecting rod on one side of the movable plate. At this time, the movable plate compresses the reset spring, and one end of the connecting rod can be pulled out of the slot, and the connecting rod will not affect the block from entering the slot. After the block enters the slot, the fixed plate is released, and the reset spring is reset at this time, and can move with the connecting rod through the movable plate, so that one end of the connecting rod can enter the connecting slot on one side of the block, completing the fixing of the block in the slot by the connecting rod, thereby completing the connection between the first connecting plate and the second connecting plate, and achieving the purpose of protecting the surface of the core body by the first protective shell and the second protective shell.

[0004] The above patent installs two sets of protective covers on the outside of the iron core of the automobile rotor when protecting the coil. When the inside of the automobile rotor needs to be maintained, the fixed plate of one set of protective covers is moved to drive the movable plate to squeeze the spring on one side, so that the movable plate drives the clamping block to disengage from the engagement with the other set of protective covers, and then moves up the first set of protective covers to complete the separation of the two sets of protective covers. However, this disassembly method requires that the other set of protective covers be moved up after the clamping block is disengaged from the engagement with the protective covers. If it is not moved up, the clamping block will re-engage with the protective covers, which is inconvenient for disassembling the protective covers. Utility Model Content

[0005] The purpose of the utility model is to provide a car starter rotor to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a car starter rotor, the car starter rotor comprising: a rotor shaft and a first spring, an iron core is sleeved on the outer side of the rotor shaft, a coil is wound around the outer side of the iron core, a commutator is fixed at one end of the rotor shaft,

[0007] A first protective sleeve is sleeved on the outer side of the iron core, one side of the first protective sleeve is movably connected to a lever via a rotating shaft, one side of the lever is slidably connected to a latch, an interior of the latch is provided with a movable groove matching the lever, one side of the latch is connected to a first spring, one side of the latch is snap-connected to a fixed block, one side of the fixed block is fixedly connected to a second protective sleeve, a second spring is fixed to the top of the second protective sleeve, and an interior of the first protective sleeve is provided with a accommodating groove matching the second spring.

[0008] Preferably, the inner side of the second protective sleeve is sleeved with the iron core, a sliding groove is provided inside the first protective sleeve, and the sliding groove is slidably connected with the latch.

[0009] Preferably, a rotation groove matching the lever is provided inside the first protective sleeve, and a clamping groove matching the latch is provided inside the fixing block.

[0010] Preferably, through grooves are formed on both sides of the first protective sleeve, and the through grooves are slidably connected to the fixing block, and one end of the first spring is connected to the first protective sleeve.

[0011] Preferably, a plurality of groups of positioning blocks are fixedly connected to one side of the core, and the plurality of groups of positioning blocks are distributed at equal angles with respect to the central axis of the core, and a cross-section of one side of the positioning blocks is trapezoidal.

[0012] Preferably, a plurality of groups of positioning grooves are provided on a side of the iron core away from the positioning block, and positions of the plurality of groups of positioning grooves correspond to the positioning block.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the latch is driven to move by toggling the lever, and when the latch is disengaged from the fixed block, the second spring will reset, thereby pushing the first protective sleeve to move upward, and the first protective sleeve will drive the latch to be misaligned with the slot in the fixed block when the first protective sleeve moves upward. At this time, when the lever is released, the latch will no longer be engaged with the fixed block, and the first protective sleeve and the second protective sleeve can be separated, and the positioning blocks of one group of iron cores can be docked with the positioning grooves of another group of iron cores. During docking, since one side of the positioning block is a trapezoidal surface, the area of ​​the positioning groove entrance is smaller than that of the positioning groove entrance, so docking can be performed more easily. After docking is completed, since the other side of the positioning block is a square surface, it will be more tightly connected to the positioning groove in the other group of iron cores.

[0014] The automobile starter rotor proposed by the utility model can rotate the lever when the first protective cover and the second protective cover are disassembled by toggling the lever, and one side of the lever will slide in the movable groove inside the latch, and the latch will be moved to squeeze the first spring on one side. When the latch is disengaged from the engagement with the fixed block, the second spring will be reset, thereby pushing the first protective cover to move upward. When the first protective cover moves upward, it will cause the latch to be misaligned with the engagement groove in the fixed block. At this time, when the lever is released, the latch will no longer be engaged with the fixed block, and the first protective cover and the second protective cover can be separated. In this way, the above operation can facilitate the protection of the coil in the automobile starter rotor and facilitate the inspection and maintenance of the rotor.

[0015] The automobile starter rotor proposed by the utility model can dock the positioning blocks of one group of iron cores with the positioning grooves of another group of iron cores when assembling the iron cores. During docking, since one side of the positioning block is a trapezoidal surface, which is smaller than the area of ​​the entrance of the positioning groove, docking can be performed more easily. After docking, since the other side of the positioning block is a square surface, it will be more tightly connected with the positioning groove in the other group of iron cores, preventing the two from shaking when moving horizontally due to the contact of the inclined surfaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional cross-sectional schematic diagram of the bottom surface of the utility model;

[0017] Figure 2 It is a three-dimensional schematic diagram of the top surface of the utility model;

[0018] Figure 3 This is a three-dimensional cross-sectional schematic diagram of the first protective cover of the utility model;

[0019] Figure 4 It is an enlarged schematic diagram of A of the utility model;

[0020] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the iron core of the utility model;

[0021] Figure 6 It is a three-dimensional schematic diagram of the iron core of the utility model.

[0022] In the figure: 1, rotor shaft; 2, iron core; 3, coil; 4, commutator; 5, first protective cover; 6, lever; 7, latch; 8, movable slot; 9, first spring; 10, fixed block; 11, second protective cover;

[0023] 12. Positioning block; 13. Positioning slot; 14. Second spring. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 6 The utility model provides a technical solution: a car starter rotor, the car starter rotor comprises: a rotor shaft 1 and a first spring 9, an iron core 2 is sleeved on the outer side of the rotor shaft 1, a coil 3 is wound around the outer side of the iron core 2, and a commutator 4 is fixed at one end of the rotor shaft 1.

[0027] The outer side of the iron core 2 is sleeved with a first protective sleeve 5, one side of the first protective sleeve 5 is movably connected with a lever 6 through a rotating shaft, one side of the lever 6 is slidably connected with a latch 7, a movable groove 8 matching the lever 6 is provided inside the latch 7, a first spring 9 is connected to one side of the latch 7, a fixed block 10 is snap-connected to one side of the latch 7, a second protective sleeve 11 is fixedly connected to one side of the fixed block 10, a second spring 14 is fixed to the top of the second protective sleeve 11, and a receiving groove matching the second spring 14 is provided inside the first protective sleeve 5; The inner side of the second protective sleeve 11 is sleeved with the iron core 2, a slide groove is provided inside the first protective sleeve 5, and the slide groove is slidably connected with the latch 7; a rotating groove matching the lever 6 is provided inside the first protective sleeve 5, and a clamping groove matching the latch 7 is provided inside the fixed block 10; through grooves are provided on both sides of the first protective sleeve 5, and the through grooves are slidably connected with the fixed block 10, one end of the first spring 9 is connected to the first protective sleeve 5, the lever 6 forms a rotating structure with the first protective sleeve 5 through a rotating shaft, and the latch 7 and the fixed block 10 form a clamping structure.

[0028] When the first protective cover 5 and the second protective cover 11 are to be disassembled, the lever 6 is rotated by toggling, and one side of the lever 6 slides in the movable groove 8 inside the latch 7, and the latch 7 is moved to squeeze the first spring 9 on one side. When the latch 7 is disengaged from the engagement with the fixed block 10, the second spring 14 is reset, thereby pushing the first protective cover 5 to move upward. When the first protective cover 5 moves upward, it causes the latch 7 to be misaligned with the engagement groove in the fixed block 10. At this time, when the lever 6 is released, the latch 7 will no longer be engaged with the fixed block 10, and the first protective cover 5 and the second protective cover 11 can be separated;

[0029] When installing the first protective cover 5 and the second protective cover 11, the through groove at the bottom of the first protective cover 5 can be docked with the fixed block 10 at the top of the second protective cover 11. When docking, the lever 6 is toggled. After the docking is completed, the lever 6 is released. At this time, the first spring 9 will push the fixed block 10 to reset and engage with the fixed block 10 to complete the installation of the first protective cover 5 and the second protective cover 11. At this time, the first protective cover 5 and the second protective cover 11 can protect the coil 3 on the outside of the iron core 2. In this way, the above operation can facilitate the protection of the coil 3 in the rotor of the automobile starter and facilitate the maintenance of the rotor.

[0030] Embodiment 2

[0031] See also Figure 1 , Figure 5 and Figure 6 A plurality of positioning blocks 12 are fixedly connected to one side of the iron core 2, and the plurality of positioning blocks 12 are distributed at equal angles with respect to the central axis of the iron core 2, and the cross-section of one side of the positioning block 12 is trapezoidal; a plurality of positioning grooves 13 are provided on the side of the iron core 2 away from the positioning block 12, and the positions of the plurality of positioning grooves 13 correspond to the positioning blocks 12.

[0032] When assembling the iron core 2, in order to facilitate the alignment of the holes inside it, multiple groups of positioning blocks 12 are set on one side of the iron core 2, and multiple groups of positioning grooves 13 are opened on the other side of the iron core 2. When docking, the positioning blocks 12 of one group of iron cores 2 can be docked with the positioning grooves 13 of another group of iron cores 2. During docking, since one side of the positioning block 12 is a trapezoidal surface, the area of ​​the entrance of the positioning groove 13 is smaller than that of the entrance of the positioning groove 13, and docking can be easier. After the docking is completed, since the other side of the positioning block 12 is a square surface, it will be more tightly connected to the positioning groove 13 in the other group of iron cores 2 to prevent the two from shaking when moving horizontally due to the contact of the inclined surfaces.

[0033] In actual use, after the current passes through the iron core 2 and the coil 3, the rotor shaft 1 is affected by electromagnetic induction, generating a huge torque, thereby starting the engine. The commutator 4 can control the flow of current so that the rotor can rotate continuously.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car starter rotor, comprising: The rotor shaft (1) and the first spring (9) are characterized in that: an iron core (2) is sleeved on the outer side of the rotor shaft (1), a coil (3) is wound around the outer side of the iron core (2), and a commutator (4) is fixed to one end of the rotor shaft (1). The outer side of the iron core (2) is sleeved with a first protective sleeve (5), one side of the first protective sleeve (5) is movably connected to a lever (6) via a rotating shaft, one side of the lever (6) is slidably connected to a latch (7), an interior of the latch (7) is provided with a movable groove (8) matching the lever (6), one side of the latch (7) is connected to a first spring (9), one side of the latch (7) is snap-connected to a fixed block (10), one side of the fixed block (10) is fixedly connected to a second protective sleeve (11), a second spring (14) is fixed to the top of the second protective sleeve (11), and an interior of the first protective sleeve (5) is provided with a receiving groove matching the second spring (14).

2. The automobile starter rotor according to claim 1, characterized in that: The inner side of the second protective sleeve (11) is sleeved with the iron core (2), and a sliding groove is provided inside the first protective sleeve (5), and the sliding groove is slidably connected with the latch (7).

3. The automobile starter rotor according to claim 2, characterized in that: A rotation groove matching the lever (6) is provided inside the first protective sleeve (5), and a clamping groove matching the latch pin (7) is provided inside the fixing block (10).

4. The automobile starter rotor according to claim 3, characterized in that: Through slots are provided on both sides of the first protective sleeve (5), and the through slots are slidably connected to the fixing block (10), and one end of the first spring (9) is connected to the first protective sleeve (5).

5. The automobile starter rotor according to claim 1, characterized in that: One side of the iron core (2) is fixedly connected to a plurality of groups of positioning blocks (12), and the plurality of groups of positioning blocks (12) are distributed at equal angles with respect to the central axis of the iron core (2), and the cross section of one side of the positioning blocks (12) is trapezoidal.

6. The automobile starter rotor according to claim 5, characterized in that: A plurality of groups of positioning grooves (13) are provided on a side of the iron core (2) away from the positioning block (12), and the positions of the plurality of groups of positioning grooves (13) correspond to the positioning block (12).

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