A starter end cover and a starter
By installing a removable protective cover and reinforcing components on the starter end cover, the problem of needing to completely disassemble and lubricate the planetary gear reducer starter is solved, simplifying the maintenance process, enhancing connection stability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO HUATENG MOTOR CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the end cover structure of the planetary gear type reduction starter needs to be completely disassembled before it can be lubricated and maintained. This operation is cumbersome and can easily lead to additional damage, affecting its service life.
Design a detachable protective sleeve structure that allows for direct injection of lubricating oil through plug slots and reinforcing components, simplifying the oiling process, and enhances connection stability through reinforcing blocks and locking bolts.
It enables oiling and maintenance without completely disassembling the starter motor, reducing operational difficulty, avoiding additional damage, and improving structural stability and service life.
Smart Images

Figure CN224582983U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starter technology, specifically to a starter end cover and a starter. Background Technology
[0002] A starter motor, also called a motor, converts electrical energy from a battery into mechanical energy to drive the engine flywheel and start the engine. Planetary gear starter motors have a compact reduction mechanism with a large transmission ratio and high efficiency. Because the output shaft and armature shaft are coaxial and rotate in the same direction, the armature shaft experiences no radial load and low vibration, resulting in a small overall size. The planetary gear reduction section of the planetary gear starter is located inside the end cover, which protects this section.
[0003] Chinese patent CN216044132U discloses a star gear type reduction starter. It uses the interaction of an insulating protective sleeve, an insulating threaded plug, a circular plate, a through groove, an insulating rubber ring gasket, and a slot to limit and fix the nut, preventing the nut from rotating or moving on the terminal block. This improves the connection effect between the terminal block and the terminal block, preventing loosening. The slot allows the connecting wire on the terminal block to enter the interior of the insulating protective sleeve, and the insulating protective sleeve protects the nut and the terminal block from corrosion.
[0004] In the above solution, although the nut is protected by a protective sleeve or other structure, the planetary gear reduction structure still needs to be lubricated internally after working for a period of time. If the meshing part is not lubricated, it will accelerate the wear of the gears, which will lead to transmission failure and seriously affect the service life of the starter. The integrated end cover structure requires the starter to be completely disassembled before lubrication can be performed, which is a more complicated maintenance operation.
[0005] Therefore, this utility model provides a starter end cover and a starter to solve the above problems. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, this utility model provides a starter end cover and a starter to solve the problem that the integrated end cover structure requires the starter to be completely disassembled before oiling and maintenance, which is a cumbersome operation.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A starter motor end cover includes a first cover sleeve, a connecting block, and a second cover sleeve. A mounting plate is fixedly connected to the first cover sleeve. The mounting plate has a circumferentially arrayed insertion slot, which communicates with the first cover sleeve. A protective sleeve is provided above the mounting plate. The protective sleeve has a cutout. An insertion block is fixedly connected to the bottom surface of the protective sleeve. The insertion block has a locking groove. The insertion block rotates through the insertion groove and engages with the locking groove on the mounting plate. The protective sleeve is also provided with a reinforcing component for connecting and reinforcing with the mounting plate.
[0009] Preferably, the reinforcement component includes a reinforcement ring fixedly connected to the protective sleeve. The reinforcement ring has first mounting holes arranged in a circumferential array. Each of the first mounting holes is fitted with a first locking bolt. The mounting plate has a third mounting hole that matches the first locking bolt, and the bottom end of the first locking bolt is threaded into the third mounting hole.
[0010] Preferably, a pad is fixedly connected to the mounting plate, and a second mounting hole is provided on both the mounting plate and the pad.
[0011] Preferably, a reinforcing block is fixedly connected to the first cover, and the top end of the reinforcing block is fixedly connected to the mounting plate.
[0012] Preferably, two sets of second connecting blocks are fixedly connected to the first cover, and the second connecting blocks are provided with screw holes.
[0013] This utility model also discloses a starter motor, including a starter motor end cover and a DC motor. The DC motor includes a main body, an upper cover and a lower cover. A third connecting block is fixedly connected to the upper cover. A third locking bolt is installed on the third connecting block and is threadedly connected to the second connecting block.
[0014] Preferably, a first connecting block is fixedly connected to the lower cover, a limiting block is fixedly connected to the upper cover, a limiting groove is formed on the limiting block, a second locking bolt is installed on the first connecting block, and one end of the second locking bolt passes through the limiting groove and is threaded to the second connecting block.
[0015] Preferably, the electromagnetic switch is mounted on the second cover by bolts.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. By installing a removable protective cover on the starter end cover, when oiling maintenance is required, there is no need to disassemble the entire starter. Simply remove the protective cover to expose the insertion slot, and the lubricating oil pipe can be inserted through the insertion slot into the first cover to directly apply oil to the internal structure. This greatly simplifies the maintenance process, reduces the difficulty of operation, and avoids additional damage to the starter structure caused by complete disassembly. It effectively alleviates the problem of transmission failure caused by gear wear due to lack of oil, and indirectly ensures the service life of the starter.
[0018] 2. The reinforcement block between the first cover and the mounting plate directly strengthens the connection between them, preventing loosening after long-term use. By placing a pad on the mounting plate, the connection between the mounting plate and the external fastener is thickened, improving the load-bearing capacity and firmness of the mounting plate fixing point. The reinforcement ring and the first locking bolt further reinforce the mounting plate, ensuring the stability of the protective sleeve when engaging the drive engine. The lower cover of the starter DC motor is connected to the second connecting block via the first connecting block and the second locking bolt. At the same time, the limiting groove of the limiting block provides lateral limiting for the second locking bolt, preventing bolt misalignment. This further ensures the reliability of the connection between the DC motor and the end cover, and improves the overall structural stability of the starter during operation. Attached Figure Description
[0019] Figure 1 The three-dimensional representation of this utility model Figure 1 .
[0020] Figure 2 The three-dimensional representation of this utility model Figure 2 .
[0021] Figure 3 For the explosion of this utility model Figure 1 .
[0022] Figure 4 For the explosion of this utility model Figure 2 .
[0023] In the diagram: 1. First cover; 2. Connecting block; 3. Second cover; 4. Mounting plate; 5. Protective sleeve; 6. Cutout; 7. Reinforcing ring; 8. First locking bolt; 9. First mounting hole; 10. Insertion groove; 11. Insertion block; 12. Slot; 13. Reinforcing block; 14. Second mounting hole; 15. Pad; 16. Electromagnetic switch; 17. Main body; 18. Upper cover; 19. Lower cover; 20. First connecting block; 21. Second locking bolt; 22. Second connecting block; 23. Limiting block; 24. Limiting groove; 25. Third connecting block; 26. Third locking bolt; 27. Third mounting hole. Detailed Implementation
[0024] The following will refer to the attached reference. Figures 1 to 4The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.
[0025] A starter end cover includes a first cover 1, a connecting block 2, and a second cover 3. A mounting plate 4 is fixedly connected to the first cover 1. The mounting plate 4 has a circumferential array of insertion slots 10, which are connected to the first cover 1. A protective sleeve 5 is provided above the mounting plate 4. A cutout 6 is provided on the protective sleeve 5. Gears inside the protective sleeve 5 will mesh with the car engine through the cutout 6 to start the engine. A insertion block 11 is fixedly connected to the bottom surface of the protective sleeve 5. A slot 12 is provided on the insertion block 11. The insertion block 11 rotates through the insertion slot 10 and engages the slot 12 with the mounting plate 4. The protective sleeve 5 is also provided with a reinforcing component for connecting and reinforcing with the mounting plate 4.
[0026] When installing the protective sleeve 5, the plug block 11 will pass through the plug groove 10 and extend into the interior of the first cover 1, and the plug block 11 will be snapped onto the mounting plate 4 through the slot 12, thereby completing the initial positioning of the protective sleeve 5. When it is necessary to apply oil to the internal structure of the first cover 1, the plug block 11 can be removed from the plug groove 10 and the plug groove 10 can be exposed to the outside. The lubricating oil pipe can then pass through the plug groove 10 and extend into the first cover 1 for oiling.
[0027] In this embodiment, the reinforcement component includes a reinforcement ring 7 fixedly connected to the protective sleeve 5. The reinforcement ring 7 has first mounting holes 9 arranged in a circumferential array. Each first mounting hole 9 is fitted with a first locking bolt 8. The mounting plate 4 has a third mounting hole 27 that matches the first locking bolt 8, and the bottom end of the first locking bolt 8 is threaded into the third mounting hole 27.
[0028] After the protective sleeve 5 is initially positioned, the first locking bolt 8 is threaded into the third mounting hole 27 in the first mounting hole 9 to reinforce the protective sleeve 5 on the mounting plate 4 and ensure the stability of the protective sleeve 5 on the mounting plate 4.
[0029] A pad 15 is fixedly connected to the mounting plate 4. Both the mounting plate 4 and the pad 15 are provided with second mounting holes 14. The pad 15 is used to thicken the fixing position of the mounting plate 4, thereby enhancing the firmness of the connection between the mounting plate 4 and the fastener.
[0030] A reinforcing block 13 is fixedly connected to the first cover 1, and the top end of the reinforcing block 13 is fixedly connected to the mounting plate 4. The connection between the first cover 1 and the mounting plate 4 is reinforced by the reinforcing block 13.
[0031] Two sets of second connecting blocks 22 are fixedly connected to the first cover 1, and screw holes are provided on the second connecting blocks 22.
[0032] In another embodiment, a starter motor includes a starter end cover and a DC motor. The DC motor includes a main body 17, an upper cover 18 and a lower cover 19. A third connecting block 25 is fixedly connected to the upper cover 18. A third locking bolt 26 is installed on the third connecting block 25 and is threadedly connected to a second connecting block 22.
[0033] When fixing the upper cover 18, the third connecting block 25 and the second connecting block 22 are connected by the third locking bolt 26, so that the upper cover 18 can be fixed on the first cover 1.
[0034] A first connecting block 20 is fixedly connected to the lower cover 19, and a limiting block 23 is fixedly connected to the upper cover 18. A limiting groove 24 is opened on the limiting block 23. A second locking bolt 21 is installed on the first connecting block 20. One end of the second locking bolt 21 passes through the limiting groove 24 and is threaded to the second connecting block 22.
[0035] When fixing the brake motor as a whole, the first connecting block 20 and the second connecting block 22 need to be connected by the second locking bolt 21, and the limiting block 23 provides limiting support for the second locking bolt 21 through the limiting groove 24, and limits the second locking bolt 21 laterally.
[0036] The electromagnetic switch 16 is bolted to the second cover 3, and the electromagnetic switch 16 is fixed in the second cover 3 in a detachable manner. The electromagnetic switch 16 is also provided with a terminal for connecting to the car computer and a terminal for connecting to the positive power supply.
[0037] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] The technical solution of this utility model has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A starter end cover comprising a first cover sleeve (1), a coupling block (2) and a second cover sleeve (3), characterized in that, A mounting plate (4) is fixedly connected to the first cover (1). The mounting plate (4) has a circumferential array of insertion slots (10) and the insertion slots (10) are connected to the first cover (1). A protective sleeve (5) is provided above the mounting plate (4). A cut (6) is provided on the protective sleeve (5). An insertion block (11) is fixedly connected to the bottom surface of the protective sleeve (5). A slot (12) is provided on the insertion block (11). The insertion block (11) rotates in the insertion slot (10) and engages the slot (12) with the mounting plate (4). The protective sleeve (5) is also provided with a reinforcement component for connecting and reinforcing with the mounting plate (4).
2. A starter end cover according to claim 1, wherein The reinforcement component includes a reinforcement ring (7) fixedly connected to the protective sleeve (5). The reinforcement ring (7) has first mounting holes (9) arranged in a circumferential array. Each of the first mounting holes (9) is equipped with a first locking bolt (8). The mounting plate (4) has a third mounting hole (27) that matches the first locking bolt (8), and the bottom end of the first locking bolt (8) is threaded into the third mounting hole (27).
3. A starter end cover according to claim 1, wherein A pad (15) is fixedly connected to the mounting plate (4), and a second mounting hole (14) is provided on both the mounting plate (4) and the pad (15).
4. A starter end cover according to claim 1, wherein A reinforcing block (13) is fixedly connected to the first cover (1), and the top end of the reinforcing block (13) is fixedly connected to the mounting plate (4).
5. A starter end cover according to claim 1, wherein Two sets of second connecting blocks (22) are fixedly connected to the first cover (1), and screw holes are provided on the second connecting blocks (22).
6. A starter characterized by comprising: The invention includes a starter end cover and a DC motor as described in any one of claims 1-5. The DC motor includes a main body (17), an upper cover (18) and a lower cover (19). A third connecting block (25) is fixedly connected to the upper cover (18). A third locking bolt (26) is installed on the third connecting block (25) and the third locking bolt (26) is threaded onto the second connecting block (22).
7. A starter as claimed in claim 6, characterized in that A first connecting block (20) is fixedly connected to the lower cover (19), and a limiting block (23) is fixedly connected to the upper cover (18). A limiting groove (24) is opened on the limiting block (23). A second locking bolt (21) is installed on the first connecting block (20). One end of the second locking bolt (21) passes through the limiting groove (24) and is threaded to the second connecting block (22).
8. A starter as claimed in claim 6, characterized in that It also includes an electromagnetic switch (16), which is bolted to the second cover (3).