Positioning mechanism for rotor iron core of automobile starter

Abstract

The utility model relates to the technical field of starters, and discloses a positioning mechanism of an automobile starter rotor core, which comprises a positioning seat and a positioning part arranged at the bottom of the positioning seat. The inner side of the positioning seat is movably provided with a positioning pin, the center of the inner side of the positioning pin is connected with a rotor iron core, and the bottom of the rotor iron core is fixedly connected with a movable iron core main body; the positioning component comprises two stable shaft bodies, the two stable shaft bodies are arranged on the left side and the right side of the bottom of the positioning pin respectively, and limiting sliding blocks are arranged on the opposite sides of the two stable shaft bodies. According to the positioning mechanism for the rotor core of the automobile starter, a more accurate machining and assembling process is adopted, the positioning grooves and the corresponding grooves are formed at the same time, it is ensured that the size and shape of the positioning mechanism are completely matched with those of the rotor core, and by means of the limiting sliding block and the stable shaft body, the connection mode of the rotor core and the positioning pin is stabilized and fixed; therefore, stable and efficient rotation can be ensured, and starting of an engine is driven.

Description

Technical Field

[0001] The utility model relates to the technical field of starters, in particular to a positioning mechanism for a rotor core of an automobile starter. Background Art

[0002] The design of the rotor core positioning mechanism of the automobile starter is based on the working principle of the motor rotor. The main function of the motor rotor is to output torque. By interacting with the stator of the motor, it realizes the conversion of electromagnetic energy into mechanical energy. In the automobile starter, the rotor core needs to be precisely positioned to ensure that it can rotate stably and efficiently under the action of the electromagnetic field, thereby driving the start of the engine.

[0003] Traditional positioning mechanisms may use positioning grooves, positioning pins and other structures to fix the rotor core at a predetermined position through mechanical cooperation. However, due to the influence of factors such as processing accuracy and assembly errors, the positioning mechanism may not be able to accurately fix the position of the rotor core, causing it to shift or shake during operation, affecting the performance and stability of the starter. Therefore, a positioning mechanism for the rotor core of an automobile starter is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a positioning mechanism for a rotor core of an automobile starter, which has the advantages of improving positioning accuracy and stable fixation, and solves the problems of insufficient positioning accuracy and poor stability.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose of improving positioning accuracy and stable fixing, the utility model provides the following technical solutions: a positioning mechanism for a rotor core of an automobile starter, comprising a positioning seat and a positioning component, wherein the positioning component is arranged at the bottom of the positioning seat;

[0008] A positioning pin is movably installed on the inner side of the positioning seat, a rotor core is connected to the inner center of the positioning pin, and a moving iron core body is fixedly connected to the bottom of the rotor core;

[0009] The positioning component comprises two stable shaft bodies, which are respectively arranged on the left and right sides of the bottom of the positioning pin, and the opposite sides of the two stable shaft bodies are both provided with limit sliders.

[0010] As a preferred technical solution of the utility model, sliding grooves are fixedly installed on the left and right sides of the outer wall of the positioning pin, and the positioning pin is slidably installed on the inner side of the positioning seat through the sliding grooves. A positioning groove is opened at the inner center of the positioning pin.

[0011] The beneficial effects of the above-mentioned preferred technical solution are as follows: the design of the sliding groove allows the locating pin to be precisely slid and adjusted in the locating seat, which ensures that the rotor core can be accurately positioned in the predetermined position, and the locating groove provides a close fit with the rotor core, preventing displacement or shaking during operation, thereby improving the stability and performance of the entire starter.

[0012] As a preferred technical solution of the utility model, the inner wall side of the positioning pin is provided with four corresponding grooves with equal spacing, and the outer surface of the rotor core is provided with two corresponding protrusions on opposite sides, and the corresponding protrusions can be snapped into the inner side of the corresponding grooves.

[0013] The beneficial effects of the above-mentioned preferred technical solution are: the clamping design of the corresponding grooves and the corresponding protrusions ensures the precise position of the rotor core on the positioning pins, and the close combination of the protrusions and the grooves can reduce the displacement of the core caused by assembly errors or vibrations, thereby improving the positioning accuracy.

[0014] As a preferred technical solution of the utility model, a buffer shaft is fixedly installed on the inner top of the positioning groove, and the buffer shaft can fit with the top of the rotor core.

[0015] The beneficial effects of the above-mentioned preferred technical solution are: by reducing impact, vibration and wear and optimizing the assembly process, the design of the buffer shaft helps to improve the performance and reliability of the entire starter, ensuring that the rotor core can work stably and efficiently, and providing strong support for the smooth starting of the vehicle.

[0016] As a preferred technical solution of the utility model, a contraction shaft is fixedly installed on the inner side of the stabilizing shaft body, and the contraction shaft is located on the inner side of the positioning pin. The bottom of the contraction shaft is transmission-connected with a limit slot located directly below the positioning pin, and a pressing layer that can fit with the limit slot is provided on the top of the moving iron core body.

[0017] The beneficial effect of the above preferred technical solution is that the structure not only ensures the stable position of the rotor core in the positioning pin, but also effectively prevents displacement or falling off due to vibration or external impact, thereby improving the stability of positioning.

[0018] As a preferred technical solution of the utility model, limit sliders are slidably installed on the left and right sides of the bottom of the positioning seat, and segmented sliding blocks are movably installed on the opposite sides of the two limit sliders, and the segmented sliding blocks can be clamped on the inner side of the limit slot.

[0019] The beneficial effects of the above-mentioned preferred technical solution are: through the cooperation of the limiting slider and the segmented sliding block, additional support and fixation are provided for the connection between the positioning pin and the rotor core. When the segmented sliding block is engaged in the limiting slot, it can effectively prevent the rotor core from shifting or shaking during operation, thereby enhancing the stability of the entire positioning mechanism.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a positioning mechanism for the rotor core of an automobile starter, which has the following beneficial effects:

[0022] The positioning mechanism of the rotor core of the automobile starter adopts more precise processing and assembly technology, and is provided with positioning grooves and corresponding grooves to ensure that the size and shape of the positioning mechanism are completely matched with the rotor core. A limiting slider and a stable shaft are used to stably fix the connection between the rotor core and the positioning pin to ensure that it can rotate stably and efficiently, thereby driving the starting of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the internal cross-sectional plane structure of the utility model;

[0024] Figure 2 This is an enlarged structural diagram of the stabilizing component of the utility model;

[0025] Figure 3 It is a bottom view structural diagram of the positioning groove of the utility model.

[0026] In the figure: 1. positioning seat; 2. positioning pin; 3. moving iron core body; 4. buffer shaft; 5. rotor core; 6. corresponding protrusion; 7. sliding groove; 8. limiting slider; 9. stabilizing shaft body; 10. contraction shaft; 11. limiting slot; 12. segmented sliding block; 13. pressing layer; 14. corresponding slot; 15. positioning slot. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0028] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-3 A positioning mechanism for a rotor core of an automobile starter comprises a positioning seat 1 and a positioning component, wherein the positioning component is arranged at the bottom of the positioning seat 1.

[0031] A positioning pin 2 is movably mounted on the inner side of the positioning seat 1 , a rotor core 5 is connected to the inner center of the positioning pin 2 , and a moving core body 3 is fixedly connected to the bottom of the rotor core 5 .

[0032] In this embodiment, sliding grooves 7 are fixedly installed on the left and right sides of the outer wall of the positioning pin 2, and the positioning pin 2 is slidably installed on the inner side of the positioning seat 1 through the sliding grooves 7. A positioning groove 15 is opened at the inner center of the positioning pin 2.

[0033] In this embodiment, four corresponding grooves 14 with equal spacing are formed on the inner wall side of the positioning pin 2 , and two corresponding protrusions 6 on opposite sides are provided on the outer surface of the rotor core 5 . The corresponding protrusions 6 can be snapped into the inner sides of the corresponding grooves 14 .

[0034] In this embodiment, a buffer shaft 4 is fixedly installed on the inner top of the positioning groove 15 , and the buffer shaft 4 can fit with the top of the rotor core 5 .

[0035] It should be noted that the presence of the buffer shaft 4 makes the position of the rotor core 5 in the positioning groove 15 more stable, and can absorb and disperse the impact and vibration generated by the rotor core 5 during assembly or operation. Even if external disturbances are encountered during operation, the buffer shaft 4 can provide certain support and buffering effects to prevent the core from shifting or shaking.

[0036] The positioning component includes two stable shaft bodies 9 , which are respectively arranged on the left and right sides of the bottom of the positioning pin 2 , and the opposite sides of the two stable shaft bodies 9 are both provided with limit sliders 8 .

[0037] In this embodiment, a contraction shaft 10 is fixedly installed on the inner side of the stabilizing shaft body 9, and the contraction shaft 10 is located on the inner side of the positioning pin 2. The bottom of the contraction shaft 10 is transmission-connected with a limit slot 11 located directly below the positioning pin 2, and a pressing layer 13 that can fit with the limit slot 11 is provided on the top of the moving iron core body 3.

[0038] It should be noted that, through the transmission connection between the contraction shaft 10 and the limiting slot 11 , and the fitting design between the pressing layer 13 and the limiting slot 11 , additional stable support is provided for the rotor core 5 .

[0039] In this embodiment, limit sliders 8 are slidably installed on both left and right sides of the bottom of the positioning seat 1, and segmented sliding blocks 12 are movably installed on the opposite sides of the two limit sliders 8. The segmented sliding blocks 12 can be snapped into the inner side of the limit slot 11.

[0040] Among them, the segmented sliding block 12 is divided into two parts, left and right. When the segmented sliding block 12 is connected to the inner side of the limit slot 11, and with the transmission of the contraction shaft 10 and the pressing of the pressing layer 13, the left part slides into the inner side of the stabilizing shaft body 9 along with the limit slot 11, and the right part is still connected to the limit slider 8, playing a fixing role to ensure the overall stability.

[0041] The beneficial effects of the above embodiments are:

[0042] By adopting more precise processing and assembly technology, a positioning groove 15 and a corresponding groove 14 are provided at the same time to ensure that the size and shape of the positioning mechanism are completely matched with the rotor core 5, and with the help of a limiting slider 8 and a stabilizing shaft 9, the connection between the rotor core 5 and the positioning pin 2 is stably fixed to ensure that it can rotate stably and efficiently, thereby driving the start of the engine.

[0043] 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 positioning mechanism for a rotor core of an automobile starter, comprising a positioning seat (1) and a positioning component, wherein the positioning component is arranged at the bottom of the positioning seat (1); Features: A positioning pin (2) is movably mounted on the inner side of the positioning seat (1); a rotor core (5) is connected to the inner center of the positioning pin (2); and a moving core body (3) is fixedly connected to the bottom of the rotor core (5); The positioning component comprises two stable shaft bodies (9), the two stable shaft bodies (9) are respectively arranged on the left and right sides of the bottom of the positioning pin (2), and the opposite sides of the two stable shaft bodies (9) are both provided with limit sliders (8).

2. The positioning mechanism of the rotor core of an automobile starter according to claim 1, characterized in that: The left and right sides of the outer wall of the positioning pin (2) are fixedly installed with sliding grooves (7), and the positioning pin (2) is slidably installed on the inner side of the positioning seat (1) through the sliding grooves (7). A positioning groove (15) is opened at the inner center of the positioning pin (2).

3. The positioning mechanism of the rotor core of an automobile starter according to claim 2, characterized in that: The inner wall side of the positioning pin (2) is provided with four corresponding grooves (14) at equal intervals, and the outer surface of the rotor core (5) is provided with two corresponding protrusions (6) on opposite sides, and the corresponding protrusions (6) can be snapped into the inner side of the corresponding grooves (14).

4. The positioning mechanism of the rotor core of an automobile starter according to claim 2, characterized in that: A buffer shaft (4) is fixedly mounted on the inner top of the positioning groove (15), and the buffer shaft (4) can fit with the top of the rotor core (5).

5. The positioning mechanism for the rotor core of an automobile starter according to claim 1, characterized in that: A contraction shaft (10) is fixedly mounted on the inner side of the stabilizing shaft (9), and the contraction shaft (10) is located on the inner side of the positioning pin (2). The bottom of the contraction shaft (10) is drivingly connected to a limit slot (11) located directly below the positioning pin (2), and a pressing layer (13) that can fit with the limit slot (11) is provided on the top of the moving iron core body (3).

6. The positioning mechanism of the rotor core of an automobile starter according to claim 5, characterized in that: Limiting slide blocks (8) are slidably mounted on both left and right sides of the bottom of the positioning seat (1), and segmented sliding blocks (12) are movably mounted on opposite sides of the two limiting slide blocks (8), and the segmented sliding blocks (12) can be snapped into the inner side of the limiting slot (11).

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