Knuckle bearing structure of universal joint durability test fixture

Abstract

The utility model discloses a knuckle bearing structure of a universal joint durability test fixture. The knuckle bearing structure comprises a vertical driving motor, an eccentric turntable I, a knuckle bearing I, a vertical guide rail sliding block, a mounting plate, a knuckle bearing II, an eccentric turntable II, a horizontal driving motor, a spherical joint, a universal joint driving motor, a horizontal guide rail sliding block, a movable plate and a universal joint. According to the scheme, the structural design is simplified, complex motion test working conditions can be realized, and maintenance is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of universal joint technology, specifically to a joint bearing structure for a universal joint durability testing fixture. Background Technology

[0002] A universal joint, also known as a universal connector, is a mechanical component that enables power transmission at varying angles. It is used in locations where the direction of the drive shaft needs to be changed, and it is the "joint" component of the universal joint transmission device in a car's drive system. Quality issues with universal joints can affect the overall quality of the vehicle body and even lead to serious accidents. Due to the diverse movement directions of universal joints, durability testing has always suffered from problems such as incomplete testing of movement directions. Differences between test conditions and actual operating conditions result in poor test results. Typical universal joint durability tests can only be conducted according to a fixed procedure, in a fixed direction, or with a limited number of movement directions, making it impossible to test complex movement patterns.

[0003] Existing universal joint testing fixtures cannot accurately reflect the actual working conditions of universal joints, resulting in compromised testing results and failing to adequately demonstrate the product quality of the universal joints.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a joint bearing structure for a universal joint durability testing fixture, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A spherical bearing structure for a universal joint durability testing fixture includes a vertical drive motor, an eccentric turntable one, a spherical bearing one, a vertical guide rail slider, a mounting plate, a spherical bearing two, an eccentric turntable two, a horizontal drive motor, a ball joint, a universal joint drive motor, a horizontal guide rail slider, a movable plate, and a universal joint.

[0010] The eccentric turntable one is located at the left end of the vertical drive motor, the spherical bearing one is vertically located at the left end of the eccentric turntable one, the mounting plate is located at the bottom of the spherical bearing one, the vertical guide rail slider is located on the back of the mounting plate, the spherical bearing two is horizontally located at the left end of the back of the mounting plate, the eccentric turntable two is vertically located at the left end of the spherical bearing two, the horizontal drive motor is located at the top of the eccentric turntable two, the movable plate is located on the back of the vertical guide rail slider, the horizontal guide rail slider is located on the back of the movable plate, the universal joint drive motor is located on the back of the movable plate, the universal joint is located on the back of the universal joint drive motor, and the ball joint is located on the back of the universal joint.

[0011] Preferably, the mounting plate is located at the rear end of the bottom of the joint bearing, and the mounting plate is connected to the groove on the vertical guide rail slider.

[0012] Preferably, the vertical guide rail slider is positioned vertically at the left end of the back of the mounting plate, and the horizontal guide rail slider is positioned horizontally at the top of the back of the movable plate.

[0013] Preferably, the universal joint drive motor is perpendicular to the movable plate, and the intersection between the universal joint drive motor and the movable plate is hollow.

[0014] (III) Beneficial Effects

[0015] This utility model provides a joint bearing structure for a universal joint durability testing fixture. It possesses the following features:

[0016] Beneficial effects:

[0017] 1. Simple structure: The entire mechanism is mainly driven by three motors, which can realize the testing of the universal joint in any direction, reducing the motion complexity of the overall design and meeting the testing requirements in any direction.

[0018] 2. Capable of performing complex motion testing conditions: Since this solution uses three motors for driving, different testing conditions can be achieved and complex motion control can be realized simply by modifying the motor control program.

[0019] 3. Easy to maintain: Due to the simple motion structure, the entire equipment only requires routine maintenance of the motor, without the need for complicated maintenance operations such as lubrication. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear structure of this utility model.

[0022] In the diagram, 1-Vertical drive motor; 2-Eccentric turntable one; 3-Ling ball bearing one; 4-Vertical guide rail slider; 5-Mounting plate; 6-Ling ball bearing two; 7-Eccentric turntable two; 8-Horizontal drive motor; 9-Spherical joint; 10-Universal joint drive motor; 11-Horizontal guide rail slider; 12-Moving plate; 13-Universal joint. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-2 The present invention provides a technical solution to achieve this: including a vertical drive motor 1, an eccentric turntable 2, a joint bearing 3, a vertical guide rail slider 4, a mounting plate 5, a joint bearing 6, an eccentric turntable 7, a horizontal drive motor 8, a ball joint 9, a universal joint drive motor 10, a horizontal guide rail slider 11, a movable plate 12, and a universal joint 13.

[0025] The core components are: eccentric turntable 1 2 located at the left end of vertical drive motor 1; spherical bearing 1 3 vertically located at the left end of eccentric turntable 1 2; mounting plate 5 located at the bottom of spherical bearing 1 3; vertical guide rail slider 4 located at the back of mounting plate 5; spherical bearing 2 6 horizontally located at the left end of the back of mounting plate 5; eccentric turntable 2 7 vertically located at the left end of spherical bearing 2 6; horizontal drive motor 8 located at the top of eccentric turntable 2 7; movable plate 12 located at the back of vertical guide rail slider 4; horizontal guide rail slider 11 located at the back of movable plate 12; universal joint drive motor 10 located at the back of movable plate 12; universal joint 13 located at the back of universal joint drive motor 10; and ball joint 9 located at the back of universal joint 13.

[0026] Specifically, the mounting plate 5 is located at the rear end of the bottom of the spherical bearing 3, and the mounting plate 5 is connected to the groove on the vertical guide rail slider 4.

[0027] The vertical guide rail slider 4 is in an upright position located at the left end of the back of the mounting plate 5, and the horizontal guide rail slider 11 is in a horizontal position located at the top of the back of the movable plate 12.

[0028] The universal joint drive motor 10 and the movable plate 12 are perpendicular to each other, and the intersection of the universal joint drive motor 10 and the movable plate 12 is hollow.

[0029] Simple structure: The entire mechanism is mainly driven by three motors, enabling testing of the universal joint in any direction. This reduces the overall design's motion complexity and meets testing requirements in any direction. Capable of complex motion testing conditions: Because this solution uses three motors, different testing conditions and complex motion control can be achieved simply by modifying the motor control program. Easy maintenance: Due to the simple motion structure, the entire device only requires routine maintenance of the motors, eliminating the need for complex maintenance operations such as lubrication.

[0030] Working Principle: During operation, the horizontal drive motor 8 is connected to the movable plate 12 via the eccentric turntable 7 and the spherical bearing 6. The horizontal guide rail slider 11 restricts its direction, ensuring that the movable plate 12 can only reciprocate horizontally under the drive of the horizontal drive motor 8. The vertical drive motor 1 is fixed to the movable plate 12 and, driven by the movable plate 12, can reciprocate horizontally. The vertical drive motor 1 is connected to the universal joint drive motor 10 via the eccentric turntable 2 and the spherical bearing 3. Under the action of the vertical guide rail slider 4, the vertical drive motor 1 can drive the universal joint drive motor 10 to reciprocate vertically. With the combined action of the horizontal drive motor 8 and the vertical drive motor 1, the universal joint drive motor 10 can reach any position within a plane. The universal joint drive motor 10 is connected to the ball joint 9 via the universal joint 13 of the test object. The rotation of the universal joint drive motor 10 drives the output end of the universal joint 13 to rotate, thereby driving the movement of the driven end ball joint 9, achieving arbitrary direction motion testing of the universal joint.

[0031] The components of this utility model are: 1-vertical drive motor; 2-eccentric turntable one; 3-spherical bearing one; 4-vertical guide rail slider; 5-mounting plate; 6-spherical bearing two; 7-eccentric turntable two; 8-horizontal drive motor; 9-spherical joint; 10-universal joint drive motor; 11-horizontal guide rail slider; 12-moving plate; 13-universal joint. These components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that existing universal joint testing fixtures cannot well match the actual working conditions of universal joints, resulting in compromised testing results and failing to accurately reflect the product quality of universal joints. This utility model simplifies the structural design while enabling complex motion testing conditions and is also easier to maintain.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A joint bearing structure for a universal joint durability testing fixture, characterized in that: It includes a vertical drive motor (1), an eccentric turntable one (2), a spherical bearing one (3), a vertical guide rail slider (4), a mounting plate (5), a spherical bearing two (6), an eccentric turntable two (7), a horizontal drive motor (8), a ball joint (9), a universal joint drive motor (10), a horizontal guide rail slider (11), a movable plate (12), and a universal joint (13); The eccentric turntable one (2) is located at the left end of the vertical drive motor (1), the spherical bearing one (3) is vertically located at the left end of the eccentric turntable one (2), the mounting plate (5) is located at the bottom of the spherical bearing one (3), the vertical guide rail slider (4) is located on the back of the mounting plate (5), the spherical bearing two (6) is horizontally located at the left end of the back of the mounting plate (5), the eccentric turntable two (7) is vertically located at the left end of the spherical bearing two (6), the horizontal drive motor (8) is located at the top of the eccentric turntable two (7), the movable plate (12) is located on the back of the vertical guide rail slider (4), the horizontal guide rail slider (11) is located on the back of the movable plate (12), the universal joint drive motor (10) is located on the back of the movable plate (12), the universal joint (13) is located on the back of the universal joint drive motor (10), and the ball joint (9) is located on the back of the universal joint (13).

2. The joint bearing structure of the universal joint durability testing fixture according to claim 1, characterized in that: The mounting plate (5) is located at the rear end of the bottom of the joint bearing (3), and the mounting plate (5) is connected to the groove on the vertical guide rail slider (4).

3. The joint bearing structure of the universal joint durability testing fixture according to claim 1, characterized in that: The vertical guide rail slider (4) is in an upright position on the left end of the back of the mounting plate (5), and the horizontal guide rail slider (11) is in a horizontal position on the top of the back of the movable plate (12).

4. The joint bearing structure of a universal joint durability testing fixture according to claim 1, characterized in that: The universal joint drive motor (10) is perpendicular to the movable plate (12), and the intersection between the universal joint drive motor (10) and the movable plate (12) is hollow.

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