A high strength outer hub

Abstract

This utility model belongs to the field of clutch outer hub technology, and particularly relates to a high-strength outer hub. The outer hub body is provided with internal teeth for meshing with the friction plate assembly. The internal teeth can restrict the position of the friction plate assembly, ensuring that the friction plate assembly will not rotate during torque transmission. A connecting plate is inserted into one side of the outer hub body, adopting a split design. An insertion part is provided on the side of the outer hub body near the connecting plate, and a snap-fit ​​part is provided on the side wall of the connecting plate. The snap-fit ​​part is adapted to the insertion part, thereby realizing the fixed snap-fit ​​between the outer hub body and the connecting plate. Compared with the traditional one-piece structure, it can reduce weight, avoid stress concentration, improve torque transmission capacity, and enhance structural strength.

Description

Technical Field

[0001] This utility model belongs to the field of clutch outer hub technology, and in particular relates to a high-strength outer hub. Background Technology

[0002] The clutch is located inside the flywheel housing between the engine and the transmission. The clutch assembly is fixed to the rear surface of the flywheel with screws. The output shaft of the clutch is the input shaft of the transmission. During vehicle operation, the driver can press or release the clutch pedal as needed to temporarily separate and gradually engage the engine and transmission, thereby cutting off or transmitting the power input from the engine to the transmission. Existing clutch outer hubs mostly adopt integral casting or welding structures, which have the following problems under high-speed rotation and high torque transmission conditions: the connection structure is too rigid, lacks buffering capacity, and is prone to stress concentration. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned technical problems by providing a high-strength outer hub. In view of this, this utility model provides a high-strength outer hub, wherein an internal toothed portion is provided within the outer hub body.

[0004] A connecting plate is inserted into one side of the outer hub body;

[0005] The outer hub body has an insertion part on the side near the connecting plate, and the side wall of the connecting plate has a snap-fit ​​part that matches the insertion part.

[0006] In the above technical solution, the insertion part further includes:

[0007] The mounting slot is located on the outer side wall of the outer hub body near the connecting plate.

[0008] The connecting ring is fixedly connected to one side of the outer hub body;

[0009] The snap-fit ​​part includes:

[0010] A snap-fit ​​ring is fixedly mounted on the side wall of the connecting plate;

[0011] The snap-fit ​​slot is located inside the snap-fit ​​ring.

[0012] A limiting ring is fixedly connected to one side of the snap-fit ​​ring.

[0013] The connecting ring is adapted to the snap-fit ​​groove, the limiting ring is adapted to the mounting groove, and the outer hub body and the connecting plate are fixedly connected by the connecting ring and the snap-fit ​​groove.

[0014] In the above technical solution, furthermore, a number of opening slots are evenly opened on the circumference of the connecting plate, and the opening slots penetrate the connecting plate, the snap ring and the limiting ring.

[0015] In the above technical solution, furthermore, each opening slot is provided with a limiting block, and the limiting block is fixedly connected in the mounting slot.

[0016] Furthermore, in the above technical solution, the end walls of the connecting ring, the snap ring, and the limiting ring are all rounded.

[0017] In the above technical solution, furthermore, an oil storage groove is provided on the inner wall of the outer hub body, and several oil inlet grooves are evenly provided on the circumference of the oil storage groove.

[0018] In the above technical solution, furthermore, several lubrication holes are provided through the internal teeth.

[0019] In the above technical solution, the snap-fit ​​part is further made of an elastic material.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. The snap-fit ​​part and the insertion part are adapted to achieve a fixed snap-fit ​​between the outer hub body and the connecting plate. Compared with the traditional one-piece structure, it can reduce weight, avoid stress concentration, improve torque transmission capability, and enhance structural strength.

[0022] 2. Several opening slots are evenly distributed around the circumference of the connecting plate, and the opening slots penetrate through part of the connecting plate, the snap ring, and the limiting ring. The opening slots divide the snap ring and the limiting ring into multiple snap-fit ​​structures, and the opening slots provide space for elastic deformation.

[0023] 3. The end walls of the connecting ring, snap ring, and limiting ring are all rounded to reduce assembly stress. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0026] Figure 3 This is a cross-sectional view of the present invention;

[0027] Figure 4 This is a utility model Figure 3 A magnified view of a section at point A in the middle;

[0028] Figure 5 This is a schematic diagram of the connecting disc structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the outer hub body structure of this utility model;

[0030] The markings in the diagram are as follows: 1-outer hub body, 2-internal gear, 3-connecting disc, 4-insertion part, 5-clamping part, 6-mounting groove, 7-connecting ring, 8-clamping ring, 9-clamping groove, 10-limiting ring, 11-opening groove, 12-limiting block, 13-oil reservoir, 14-oil inlet groove, 15-lubrication hole. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] Example 1:

[0033] This embodiment provides a high-strength outer hub, including:

[0034] Outer hub body 1, with an internal toothed part 2 inside the outer hub body 1;

[0035] Connecting plate 3 is inserted into one side of the outer hub body 1;

[0036] The outer hub body 1 has an insertion part 4 on the side near the connecting plate 3, and the side wall of the connecting plate 3 has a snap-fit ​​part 5 that is adapted to the insertion part 4.

[0037] As can be seen in this embodiment, the outer hub body 1 is provided with an internal toothed portion 2 for meshing with the friction plate assembly. The internal toothed portion 2 can limit the position of the friction plate assembly, ensuring that the friction plate assembly will not rotate when transmitting torque. A connecting plate 3 is inserted into one side of the outer hub body 1, adopting a split design. An insertion portion 4 is provided on the side of the outer hub body 1 near the connecting plate 3. A snap-fit ​​portion 5 is provided on the side wall of the connecting plate 3. The snap-fit ​​portion 5 is adapted to the insertion portion 4, thereby realizing the fixed snap-fit ​​between the outer hub body 1 and the connecting plate 3. Compared with the traditional one-piece structure, it can reduce weight, avoid stress concentration, improve torque transmission capacity, and enhance structural strength.

[0038] Example 2:

[0039] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Insertion part 4 includes:

[0041] Mounting slot 6 is provided on the outer side wall of the outer hub body 1 near the connecting plate 3.

[0042] Connecting ring 7 is fixedly connected to one side of outer hub body 1;

[0043] The snap-fit ​​part 5 includes:

[0044] The snap-fit ​​ring 8 is fixedly installed on the side wall of the connecting plate 3;

[0045] The snap-fit ​​slot 9 is formed inside the snap-fit ​​ring 8;

[0046] Limiting ring 10 is fixedly connected to one side of snap ring 8;

[0047] The connecting ring 7 is adapted to the snap-fit ​​groove 9, the limiting ring 10 is adapted to the mounting groove 6, and the outer hub body 1 and the connecting plate 3 are fixedly connected by the cooperation of the connecting ring 7 and the snap-fit ​​groove 9.

[0048] As can be seen from this embodiment, the insertion part 4 includes a mounting groove 6 and a connecting ring 7. The mounting groove 6 is opened on the outer side wall of the outer hub body 1 near the connecting plate 3. The cross-section of the mounting groove 6 is trapezoidal. The connecting ring 7 is fixedly connected to one side of the outer hub body 1. The snap-fit ​​part 5 includes a snap-fit ​​ring 8, a snap-fit ​​groove 9, and a limiting ring 10. The snap-fit ​​ring 8 is fixedly disposed on the side wall of the connecting plate 3. The snap-fit ​​groove 9 is opened in the snap-fit ​​ring 8. The limiting ring 10 is fixedly connected to one side of the snap-fit ​​ring 8. One side of the limiting ring 10 is an inclined surface and is adapted to the inclined surface of the mounting groove 6. The connecting ring 7 is snapped into the snap-fit ​​groove 9. The limiting ring 10 is adapted to the mounting groove 6. The limiting ring 10 abuts against the connecting ring 7 to realize the fixed connection between the outer hub body 1 and the connecting plate 3. The connection strength is high and the installation and disassembly are simple.

[0049] Example 3:

[0050] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0051] The connecting plate 3 has several opening slots 11 evenly distributed around its circumference, and the opening slots 11 penetrate the connecting plate 3, the snap ring 8, and the limiting ring 10.

[0052] As can be seen from this embodiment, a number of opening slots 11 are evenly provided on the circumference of the connecting disk 3, and the opening slots 11 penetrate the opening portion of the connecting disk 3, the snap ring 8 and the limiting ring 10. The opening slots 11 divide the snap ring 8 and the limiting ring 10 into multiple snap-fit ​​structures, and the opening slots 11 provide elastic deformation space.

[0053] Example 4:

[0054] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0055] Each opening slot 11 is provided with a limiting block 12, and the limiting block 12 is fixedly connected in the mounting slot 6.

[0056] As can be seen from this embodiment, each opening slot 11 is provided with a limiting block 12, and the limiting block 12 is fixedly connected in the mounting slot 6 to prevent the connecting plate 3 from rotating circumferentially.

[0057] Example 5:

[0058] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0059] The end walls of the connecting ring 7, the snap ring 8, and the limiting ring 10 are all rounded.

[0060] As can be seen from this embodiment, the end walls of the connecting ring 7, the snap ring 8, and the limiting ring 10 are all rounded to reduce assembly stress.

[0061] Example 6:

[0062] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] An oil storage groove 13 is provided on the inner wall of the outer hub body 1, and several oil inlet grooves 14 are evenly provided on the circumference of the oil storage groove 13.

[0064] As can be seen from this embodiment, an oil reservoir 13 is provided on the inner wall of the outer hub body 1. The volume of the oil reservoir 13 is 5%-8% of the volume of the inner cavity of the outer hub to ensure sufficient lubrication. Several oil inlet grooves 14 are evenly provided on the circumference of the oil reservoir 13 for inputting lubricating oil.

[0065] Example 7:

[0066] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] Several lubrication holes 15 are provided through the internal tooth section 2.

[0068] As can be seen from this embodiment, several lubrication holes 15 are provided through the internal tooth part 2, which can directly lubricate the internal tooth part 2 and further enhance the lubrication effect.

[0069] Example 8:

[0070] This embodiment provides a high-strength outer hub, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0071] The snap-fit ​​part 5 is made of elastic material.

[0072] As can be seen from this embodiment, the snap-fit ​​part 5 can be made of materials such as TPEE or 3J21 elastic alloy.

[0073] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A high-strength outer hub, characterized in that, include: Outer hub body (1), the outer hub body (1) is provided with an internal toothed part (2); Connecting disc (3), the connecting disc (3) is inserted into one side of the outer hub body (1); The outer hub body (1) is provided with an insertion part (4) on the side near the connecting plate (3), and the side wall of the connecting plate (3) is provided with a snap-fit ​​part (5) that is adapted to the insertion part (4).

2. The high-strength outer hub according to claim 1, characterized in that, The insertion part (4) includes: The mounting groove (6) is formed on the outer side wall of the outer hub body (1) near the connecting plate (3); Connecting ring (7), the connecting ring (7) is fixedly connected to one side of the outer hub body (1); The snap-fit ​​portion (5) includes: A snap-fit ​​ring (8) is fixedly disposed on the side wall of the connecting plate (3); A snap-fit ​​groove (9) is formed inside a snap-fit ​​ring (8); A limiting ring (10) is fixedly connected to one side of the snap ring (8); Among them, the connecting ring (7) is adapted to the snap-fit ​​groove (9), the limiting ring (10) is adapted to the mounting groove (6), and the outer hub body (1) and the connecting plate (3) are fixedly connected by the connecting ring (7) and the snap-fit ​​groove (9).

3. A high-strength outer hub according to claim 2, characterized in that, The connecting plate (3) has several opening slots (11) evenly distributed around its circumference, and the opening slots (11) penetrate the connecting plate (3), the snap ring (8), and the limiting ring (10).

4. A high-strength outer hub according to claim 3, characterized in that, Each of the opening slots (11) is provided with a limiting block (12), and the limiting block (12) is fixedly connected in the mounting slot (6).

5. A high-strength outer hub according to claim 2, characterized in that, The end walls of the connecting ring (7), the snap ring (8), and the limiting ring (10) are all rounded.

6. A high-strength outer hub according to claim 1, characterized in that, The inner wall of the outer hub body (1) is provided with an oil storage groove (13), and a number of oil inlet grooves (14) are evenly provided on the circumference of the oil storage groove (13).

7. A high-strength outer hub according to claim 1, characterized in that, Several lubrication holes (15) are provided through the internal tooth part (2).

8. A high-strength outer hub according to claim 2, characterized in that, The snap-fit ​​part (5) is made of elastic material.

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