Star-shaped sleeve with good impact resistance

Abstract

The utility model discloses a star type sleeve with good impact resistance belongs to the coupling workpiece technical field, this star type sleeve with good impact resistance, include: star type sleeve component, star type sleeve component includes upper star type half cover and lower star type half cover, and the upper star type half cover is fixedly connected through bolt between lower star type half cover, and the outside surface of one side of lower star type half cover is provided with four installation locking grooves, four groups of locking components, and locking components include baffle, movable cambered surface block, transmission plate and two reset springs, this star type sleeve with good impact resistance, and the upper star type half cover and lower star type half cover all adopt the material of alloy carburizing steel this high strength, high toughness, high wear resistance and good fatigue performance make, not only have good impact resistance, and according to the actual demand of connecting smooth shaft or spline shaft etc.

Description

Technical Field

[0001] This utility model relates to the field of coupling workpiece technology, and more specifically, to a star-shaped sleeve with good impact resistance. Background Technology

[0002] The star-shaped bushing is a key component of the automotive drivetrain, primarily used on the drive axles of front-wheel drive and four-wheel drive vehicles. Its core function is to transmit power and rotational motion at a constant speed. Even as the wheel angles change during steering and vertical movement, it ensures smooth and stable power transmission, thereby guaranteeing smooth vehicle operation, precise handling, and reduced vibration and noise. The star-shaped bushing is named for its star-shaped appearance, achieved through a omnidirectional transmission structure using steel balls and a ball cage. It is an indispensable and crucial component of modern automotive drive axles.

[0003] Traditional star-shaped bushings typically employ an integral structure, with the inner ring and outer ring forming a single unit. The inner wall is usually designed as a smooth hole or spline hole, meaning that a star-shaped bushing can only fit one type of shaft. In practical applications, when the transmission system needs to connect different types of shafts due to changes in requirements or maintenance, the entire star-shaped bushing assembly must be replaced, lacking flexibility. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a star-shaped sleeve with good impact resistance. It not only has excellent impact resistance, but also allows for the selection of movable inner ring modules according to actual needs such as connecting smooth shafts or spline shafts. Furthermore, the corresponding movable inner ring modules can be quickly and easily fixed and installed into the star-shaped sleeve components, making it convenient to operate and flexible in application.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] A star-shaped sleeve with good impact resistance includes:

[0009] A star-shaped sleeve component, comprising an upper star-shaped half-sleeve and a lower star-shaped half-sleeve, wherein the upper star-shaped half-sleeve and the lower star-shaped half-sleeve are fixedly connected by bolts, and four mounting locking grooves are provided on one outer surface of the lower star-shaped half-sleeve.

[0010] Four sets of locking components, each including a partition, a movable arc-shaped block, a transmission plate, and two return springs. The partition is fixedly connected between the inner walls of the corresponding mounting locking slots on both sides. The movable arc-shaped block slides through the partition. The transmission plate is fixedly connected to the outer surface of one side of the movable arc-shaped block. Both return springs are fixedly connected between the outer surface of one side of the partition and the inner wall of one side of the mounting locking slot.

[0011] The active inner ring module has four locking arc blocks fixedly connected to its outer surface.

[0012] As a preferred embodiment of this utility model, four positioning grooves are provided on the inner circumference of the upper star-shaped half-set.

[0013] As a preferred embodiment of this utility model, the four positioning grooves are evenly distributed in a ring array on the inner circumference of the upper star-shaped half-set.

[0014] As a preferred embodiment of this utility model, the four mounting locking slots are evenly distributed in a ring array on one side of the outer surface of the lower star-shaped half-set.

[0015] As a preferred embodiment of the present invention, the locking assembly further includes two limiting rods, both of which are fixedly connected between the outer surface of one side of the partition and the inner wall of the side where the locking groove is installed.

[0016] In a preferred embodiment of this utility model, each of the reset springs is slidably sleeved on the corresponding limiting rod.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, this utility model provides a star-shaped sleeve with good impact resistance, which has the following beneficial effects:

[0019] This impact-resistant star-shaped sleeve is constructed from alloy carburized steel, a high-strength, high-toughness, high-wear-resistance, and fatigue-resistant material, making both the upper and lower star-shaped halves highly impact-resistant. Depending on the specific requirements, a movable inner ring module with a smooth inner circumference or star-shaped teeth is selected and embedded into the center of the lower star-shaped halves. Four locking arc-shaped blocks on the movable inner ring module enter the four mounting locking slots via four positioning grooves. Rotating the movable inner ring module causes the four locking arc-shaped blocks to move along a circular trajectory, with the arc surface of each locking arc-shaped block compressing the corresponding movable arc-shaped block. The curved surface of the block causes the corresponding movable curved block to move away from the movable inner ring module. Eventually, each locking curved block passes over the corresponding movable curved block. At the same time, the restoring force of the two return springs in each locking assembly acts on the corresponding transmission plate, causing each movable curved block to return to its initial position. This fixes the four locking curved blocks between the four movable curved blocks and the four mounting locking slots, providing excellent impact resistance. Furthermore, the movable inner ring module can be selected according to actual needs such as connecting smooth shafts or spline shafts. The corresponding movable inner ring module can be quickly and easily fixed into the star-shaped sleeve component, making it convenient to operate and flexible in application. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a top view of the star-shaped sleeve component of this utility model;

[0023] Figure 4 This is an exploded view of the star-shaped sleeve component of this utility model;

[0024] Figure 5 This is a partial three-dimensional view of the structure of this utility model;

[0025] Figure 6 For the present utility model Figure 5 Enlarged view of point A in the middle.

[0026] Explanation of the labels in the diagram:

[0027] 1. Star-shaped sleeve component; 101. Upper star-shaped half-sleeve; 102. Lower star-shaped half-sleeve; 2. Movable inner ring module; 3. Locking arc surface block; 4. Positioning slide groove; 5. Installation locking groove; 6. Locking assembly; 601. Partition plate; 602. Movable arc surface block; 603. Transmission plate; 604. Return spring; 605. Limit rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Example:

[0030] Please see Figures 1-6 A star-shaped sleeve with good impact resistance, comprising:

[0031] Star-shaped sleeve component 1, which includes an upper star-shaped half sleeve 101 and a lower star-shaped half sleeve 102. The upper star-shaped half sleeve 101 and the lower star-shaped half sleeve 102 are fixedly connected by bolts. Four mounting locking grooves 5 are provided on one outer surface of the lower star-shaped half sleeve 102.

[0032] Four sets of locking components 6, each including a partition 601, a movable arc-shaped block 602, a transmission plate 603, and two return springs 604. The partition 601 is fixedly connected between the inner walls of the corresponding mounting locking groove 5 on both sides. The movable arc-shaped block 602 slides through the partition 601. The transmission plate 603 is fixedly connected to the outer surface of one side of the movable arc-shaped block 602. Both return springs 604 are fixedly connected between the outer surface of one side of the partition 601 and the inner wall of one side of the mounting locking groove 5.

[0033] The inner ring module 2 has four locking arc blocks 3 fixedly connected to its outer surface.

[0034] In a specific embodiment of this utility model, the movable inner ring module 2 can be configured in various ways, the only difference being whether the inner circumferential wall of the movable inner ring module 2 is smooth or has a star-shaped tooth structure. Each movable inner ring module 2 has four locking arc-shaped blocks 3 fixed to its outer circumferential surface. The upper star-shaped half-sleeve 101 and the lower star-shaped half-sleeve 102 are both made of alloy carburized steel, a material with high strength, high toughness, high wear resistance, and good fatigue performance, giving the star-shaped sleeve component 1 excellent impact resistance. Depending on the actual situation, a movable inner ring module 2 with a smooth inner circumferential wall or star-shaped teeth is selected. The movable inner ring module 2 is embedded into the center of the lower star-shaped half-sleeve 102 and the lower star-shaped half-sleeve 102. The four locking arc-shaped blocks 3 on the movable inner ring module 2 respectively enter the four mounting locking slots 5. Then, rotating the movable inner ring module 2 drives the four locking arc-shaped blocks... Block 3 moves along a circular trajectory. The arc surface of each locking arc surface block 3 will press against the arc surface of the corresponding movable arc surface block 602, causing the corresponding movable arc surface block 602 to move away from the movable inner ring module 2. Finally, each locking arc surface block 3 passes over the corresponding movable arc surface block 602. At the same time, the restoring force of the two return springs 604 in each set of locking components 6 acts on the corresponding transmission plate 603, causing each movable arc surface block 602 to return to its initial position. This makes the four locking arc surface blocks 3 fixed between the four movable arc surface blocks 602 and the four mounting locking slots 5, respectively. It not only has good impact resistance, but also allows for the selection of the movable inner ring module 2 according to the actual needs of connecting smooth shafts or spline shafts. Furthermore, the corresponding movable inner ring module 2 can be quickly fixed and installed into the star-shaped sleeve component 1, making it convenient to operate and flexible in application.

[0035] Specifically, four positioning grooves 4 are provided on the inner circumference of the upper star-shaped half-set 101.

[0036] In this embodiment, the four positioning grooves 4 are used for the four locking arc blocks 3 on the movable inner ring module 2 to enter the four mounting locking grooves 5. When the movable inner ring module 2 rotates, the four locking arc blocks 3 and the four positioning grooves 4 no longer correspond.

[0037] Specifically, the four positioning grooves 4 are evenly distributed in a ring array on the inner circumference of the upper star-shaped half-set 101.

[0038] In this embodiment, the four positioning grooves 4 are evenly distributed in a ring array, corresponding to the four locking arc blocks 3 evenly distributed in the ring array of the active inner ring module 2.

[0039] Specifically, the four mounting locking slots 5 are evenly distributed in a ring array on one side of the outer surface of the lower star-shaped half-set 102.

[0040] In this embodiment, the four mounting locking slots 5 correspond to the four positioning sliding slots 4.

[0041] Specifically, the locking assembly 6 also includes two limiting rods 605, both of which are fixedly connected between the outer surface of one side of the partition 601 and the inner wall of the side where the locking groove 5 is installed.

[0042] In this embodiment, in each locking assembly 6, two limiting rods 605 ensure that the transmission plate 603 remains stable during movement.

[0043] Specifically, each reset spring 604 is slidably sleeved on the corresponding limit rod 605.

[0044] In this embodiment, the return spring 604 is sleeved on the limiting rod 605, so that the return spring 604 will not bend or other unexpected situations during the compression and extension process.

[0045] Working principle: Both the upper star-shaped half-sleeve 101 and the lower star-shaped half-sleeve 102 are made of alloy carburized steel, a material with high strength, high toughness, high wear resistance, and good fatigue performance, giving the star-shaped sleeve component 1 excellent impact resistance. Depending on the actual situation, a movable inner ring module 2 with a smooth inner circumferential wall or star-shaped teeth is selected. The movable inner ring module 2 is embedded into the center of the lower star-shaped half-sleeve 102 and the lower star-shaped half-sleeve 102. The four locking arc surface blocks 3 on the movable inner ring module 2 enter the four mounting locking slots 5 respectively through four positioning slides 4. Then, rotating the movable inner ring module 2 causes the four locking arc surface blocks 3 to move along a circumferential trajectory. The arc surface of each locking arc surface block 3 will compress the arc surface of the corresponding movable arc surface block 602. The corresponding movable arc surface block 602 moves away from the movable inner ring module 2, and finally each locking arc surface block 3 passes over the corresponding movable arc surface block 602. At the same time, the restoring force of the two return springs 604 in each locking assembly 6 acts on the corresponding transmission plate 603, so that each movable arc surface block 602 returns to its initial position, and the four locking arc surface blocks 3 are fixed between the four movable arc surface blocks 602 and the four mounting locking slots 5 respectively. It not only has good impact resistance, but also allows for the selection of the movable inner ring module 2 according to the actual needs of connecting smooth shafts or spline shafts, and can quickly fix the corresponding movable inner ring module 2 into the star-shaped sleeve component 1. It is convenient to operate and flexible in application.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A star-shaped sleeve with good impact resistance, characterized in that, include: Star-shaped sleeve component (1), the star-shaped sleeve component (1) includes an upper star-shaped half sleeve (101) and a lower star-shaped half sleeve (102), the upper star-shaped half sleeve (101) and the lower star-shaped half sleeve (102) are fixedly connected by bolts, and four mounting locking grooves (5) are opened on one side of the outer surface of the lower star-shaped half sleeve (102). Four sets of locking components (6), each locking component (6) includes a partition (601), a movable arc-shaped block (602), a transmission plate (603), and two return springs (604). The partition (601) is fixedly connected between the inner walls of the corresponding mounting locking groove (5) on both sides. The movable arc-shaped block (602) slides through the partition (601). The transmission plate (603) is fixedly connected to the outer surface of one side of the movable arc-shaped block (602). The two return springs (604) are both fixedly connected between the outer surface of one side of the partition (601) and the inner wall of one side of the mounting locking groove (5). The active inner ring module (2) has four locking arc blocks (3) fixedly connected to its outer surface.

2. The star-shaped sleeve with good impact resistance according to claim 1, characterized in that: Four positioning grooves (4) are provided on the inner circumference of the upper star-shaped half-set (101).

3. The star-shaped sleeve with good impact resistance according to claim 2, characterized in that: The four positioning grooves (4) are evenly distributed in a ring array on the inner circumference of the upper star-shaped half-set (101).

4. The star-shaped sleeve with good impact resistance according to claim 1, characterized in that: The four mounting locking slots (5) are evenly distributed in a ring array on one side of the outer surface of the lower star-shaped half-set (102).

5. A star-shaped sleeve with good impact resistance according to claim 1, characterized in that: The locking assembly (6) also includes two limiting rods (605), both of which are fixedly connected between the outer surface of one side of the partition (601) and the inner wall of the mounting locking groove (5).

6. A star-shaped sleeve with good impact resistance according to claim 5, characterized in that: Each of the aforementioned return springs (604) is slidably sleeved on the corresponding limiting rod (605).

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