Four-shaft bench test tool for steering knuckle parts
By designing a four-axis bench test fixture for steering knuckle components and using a multi-directional loading cylinder to simulate the steering knuckle force, the problems of long test cycle and low precision caused by uniaxial loading were solved, and more efficient steering knuckle testing was achieved.
Patent Information
- Application Number
- CN202422501499.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-10-16
AI Technical Summary
Existing bench tests generally use uniaxial loading, which leads to long test cycles, low test accuracy, and easy waste of resources. It is unable to fully simulate the multi-directional forces and moments of the steering knuckle in actual use.
A four-axis test bench fixture for steering knuckle components is designed. By fixing components and multiple loading cylinders (braking force, lateral force, longitudinal force, vertical force), the stress conditions of the steering knuckle in an actual vehicle are simulated to achieve multi-directional loading.
It improves the accuracy and reliability of test results, shortens the test cycle, reduces manpower and time investment, and ensures that the steering knuckle is fully tested under various stress conditions.
Smart Images
Figure CN223320059U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile suspension test devices, in particular to a four-axis bench test fixture for steering knuckle components. Background Art
[0002] In the automotive industry, the steering knuckle is a crucial component of the vehicle's suspension system. It connects the wheels to the vehicle frame and is responsible for transmitting various forces and torques between the wheels and the vehicle body. Due to the crucial role of the steering knuckle during vehicle driving, its quality and performance are directly related to the vehicle's handling stability, safety, and comfort. Traditional uniaxial loading tests can only apply force to the steering knuckle in a single direction and are unable to simulate the multi-directional and complex forces to which the steering knuckle is subjected during actual driving. Since uniaxial loading cannot fully simulate actual operating conditions, the test results may differ significantly from the actual performance of the steering knuckle. Therefore, a new four-axis test bench fixture was designed to meet current usage requirements. Utility Model Content
[0003] The utility model provides a four-axis bench test fixture for steering knuckle components, which can solve the problems that the existing bench test generally adopts a single-axis loading method, resulting in a long test cycle, low test accuracy, and easy waste of test resources.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a four-axis bench test fixture for steering knuckle components, comprising a workbench, a fixing assembly for fixing the steering knuckle is provided on the upper side of the workbench, a wheel plate is detachably provided on one side of the fixing assembly, a braking force loading cylinder is provided on the left side of the wheel plate, a lateral force loading cylinder is provided on the front side of the wheel plate, a longitudinal force loading cylinder is provided on the right side of the wheel plate, a vertical force loading cylinder is provided on the upper side of the wheel plate, and the vertical force loading cylinder is installed on the gantry; the fixing assembly comprises a fixing bracket vertically arranged on the workbench, a tooling plate is provided on one side of the fixing bracket, and a double fork is provided on the upper end of one side of the tooling plate. An arm replacement part, a shock absorber connecting block is provided at the lower end of one side of the tooling plate, two first support seats are provided side by side on the lower side of the double-wishbone replacement part, two second support seats are provided on the lower side of the shock absorber connecting block, a third support seat is provided between the two second support seats, a steering rod replacement part is provided on the upper side of the third support seat, a fourth support seat is provided on the upper side of the two first support seats, and a shock absorber replacement part is provided between the shock absorber connecting block and the fourth support seat. Through the four-axis bench test tooling, the stress condition of the steering knuckle in the actual vehicle can be simulated more accurately, thereby improving the accuracy of the test results and ensuring that the steering knuckle can be fully tested under various possible stress conditions.
[0005] Preferably, a first connecting plate is provided at the upper end of the wheel plate, a second connecting plate is provided at the lower end of the wheel plate, a third connecting plate is provided at the right end of the wheel plate, and a fixing plate is provided at the left end of the wheel plate for easy fixation.
[0006] Preferably, the movable ends of the braking force loading cylinder and the lateral force loading cylinder are connected to the second connecting plate through a first fisheye bearing, which has a simple structure and is easy to install.
[0007] Preferably, the third connecting plate is connected to the longitudinal force loading cylinder via a second fisheye bearing, which has a simple structure and is easy to install.
[0008] Preferably, the first connecting plate is connected to the vertical force loading cylinder via a third fisheye bearing, which has a simple structure and is easy to install.
[0009] Preferably, the ends of the braking force loading cylinder, the lateral force loading cylinder and the longitudinal force loading cylinder are all rotatably provided with sliders, and a mounting seat connected to the workbench is provided on one side of the slider, and the slider can be moved up and down along the mounting seat for adjustment, which is convenient for adjustment.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] The simple structure simultaneously loads the steering knuckle in multiple directions, more comprehensively simulating the multi-directional forces and moments encountered by the knuckle in actual use. This improves the accuracy and reliability of test results, significantly shortens the test cycle, improves test efficiency, and reduces manpower and time investment. This solves the problem of existing bench tests, which generally use uniaxial loading methods, resulting in long test cycles, low test accuracy, and a tendency to waste test resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0013] Figure 2 This is a schematic structural diagram of the fixing assembly and wheel plate of the present invention;
[0014] Figure 3 This is a three-dimensional structural diagram of the fixing assembly of the present utility model;
[0015] Figure 4 It is a structural diagram of the mounting seat and the slider of the utility model.
[0016] Reference numerals:
[0017] 1. Workbench, 2. Steering knuckle, 3. Fixing assembly, 31. Fixing bracket, 32. Tooling plate, 33. Double wishbone replacement part, 34. Shock absorber connecting block, 35. First support seat, 36. Second support seat, 37. Third support seat, 38. Steering rod replacement part, 39. Fourth support seat, 40. Shock absorber replacement part, 4. Wheel plate, 41. First connecting plate, 42. Second connecting plate, 43. Third connecting plate, 44. Fixing plate, 45. First fisheye bearing, 46. Second fisheye bearing, 47. Third fisheye bearing, 5. Braking force loading cylinder, 6. Lateral force loading cylinder, 7. Longitudinal force loading cylinder, 8. Vertical force loading cylinder, 9. Gantry, 10. Mounting seat, 11. Slider. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0019] like Figure 1-4 As shown, the utility model is to solve the problem that the existing bench test is generally a single-axis loading method, which leads to a long test cycle, low test accuracy, and easy waste of test resources. The utility model provides the following technical solutions: a four-axis bench test tool for a steering knuckle component, comprising a workbench 1, a fixing component 3 for fixing a steering knuckle 2 is provided on the upper side of the workbench 1, a wheel plate 4 is detachably provided on one side of the fixing component 3, a braking force loading cylinder 5 is provided on the left side of the wheel plate 4, a lateral force loading cylinder 6 is provided on the front side of the wheel plate 4, a longitudinal force loading cylinder 7 is provided on the right side of the wheel plate 4, a vertical force loading cylinder 8 is provided on the upper side of the wheel plate 4, and the vertical force loading cylinder 8 is installed on the gantry 9; the fixing component 3 includes a fixing bracket 31 vertically arranged on the workbench 1, and a tooling plate 3 is provided on one side of the fixing bracket 31 2. A double fork arm replacement part 33 is provided at the upper end of one side of the tooling plate 32, and a shock absorber connecting block 34 is provided at the lower end of one side of the tooling plate 32. Two first support seats 35 are provided side by side on the lower side of the double fork arm replacement part 33, and two second support seats 36 are provided on the lower side of the shock absorber connecting block 34. A third support seat 37 is provided between the two second support seats 36, and a steering rod replacement part 38 is provided on the upper side of the third support seat 37. A fourth support seat 39 is provided on the upper side of the two first support seats 35, and a shock absorber replacement part 40 is provided between the shock absorber connecting block 34 and the fourth support seat 39. Through the four-axis bench test tooling, the stress conditions of the steering knuckle in the actual vehicle can be simulated more accurately, thereby improving the accuracy of the test results and ensuring that the steering knuckle can be fully tested under various possible stress conditions.
[0020] In this embodiment, if Figure 2As shown, a first connecting plate 41 is provided at the upper end of the wheel plate 4, a second connecting plate 42 is provided at the lower end of the wheel plate 4, a third connecting plate 43 is provided at the right end of the wheel plate 4, and a fixing plate 44 is provided at the left end of the wheel plate 4 for easy fixation.
[0021] In this embodiment, if Figure 2 As shown, the movable ends of the braking force loading cylinder 5 and the lateral force loading cylinder 6 are connected to the second connecting plate 42 through the first fisheye bearing 45, which has a simple structure and is easy to install.
[0022] In this embodiment, if Figure 2 As shown, the third connecting plate 43 is connected to the longitudinal force loading cylinder 7 through a second fisheye bearing 46, which has a simple structure and is easy to install.
[0023] In this embodiment, if Figure 2 As shown, the first connecting plate 41 is connected to the vertical force loading cylinder 8 through the third fisheye bearing 47, which has a simple structure and is easy to install.
[0024] In this embodiment, if Figure 4 As shown, the ends of the braking force loading cylinder 5, the lateral force loading cylinder 6 and the longitudinal force loading cylinder 7 are all rotatably provided with a slider 11, and one side of the slider 11 is provided with a mounting seat 10 connected to the workbench 1, and the slider 11 can be moved up and down along the mounting seat 10 for easy adjustment.
[0025] In this embodiment, if Figure 1 As shown, the steering knuckle 2 is fixed on the upper side of the shock absorber connecting block 34 and the double wishbone replacement part 33, the steering knuckle 2 is connected to the wheel hub bearing by bolts, the wheel hub bearing is connected to the wheel plate 4 by bolts, the wheel plate 4 is fixed to the outside of the steering knuckle 2, the fixing plate 44 is connected to the steering knuckle 2, the braking force loading cylinder 5, the lateral force loading cylinder 6, the longitudinal force loading cylinder 7 and the vertical force loading cylinder 8 respectively apply the vertical force, longitudinal force, lateral force of the ground contact point and the braking force of the ground contact point to simulate the four-axis loading method; the vertical force loading cylinder 8 is connected through the gantry 9 and loaded at the wheel center point; the distance between the lateral force loading point of the wheel plate 4 and the wheel center point needs to be the ground contact radius of the tire to simulate the ground contact point loading method.
[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0027] In addition, the terms "first," "second," and so on, used in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0028] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.
Claims
1. A four-axis test bench for steering knuckle components, characterized in that: include: A workbench (1), wherein a fixing assembly (3) for fixing a steering knuckle (2) is provided on the upper side of the workbench (1), a wheel plate (4) is detachably provided on one side of the fixing assembly (3), a braking force loading cylinder (5) is provided on the left side of the wheel plate (4), a lateral force loading cylinder (6) is provided on the front side of the wheel plate (4), a longitudinal force loading cylinder (7) is provided on the right side of the wheel plate (4), a vertical force loading cylinder (8) is provided on the upper side of the wheel plate (4), and the vertical force loading cylinder (8) is installed on a gantry (9); The fixing assembly (3) includes a fixing bracket (31) vertically arranged on the workbench (1), a tooling plate (32) is provided on one side of the fixing bracket (31), a double fork arm replacement part (33) is provided on the upper end of one side of the tooling plate (32), a shock absorber connecting block (34) is provided on the lower end of one side of the tooling plate (32), two first support seats (35) are provided side by side on the lower side of the double fork arm replacement part (33), two second support seats (36) are provided on the lower side of the shock absorber connecting block (34), a third support seat (37) is provided between the two second support seats (36), a steering rod replacement part (38) is provided on the upper side of the third support seat (37), a fourth support seat (39) is provided on the upper side of the two first support seats (35), and a shock absorber replacement part (40) is provided between the shock absorber connecting block (34) and the fourth support seat (39).
2. The four-axis test bench fixture for steering knuckle components according to claim 1, characterized in that: The upper end of the wheel plate (4) is provided with a first connecting plate (41), the lower end of the wheel plate (4) is provided with a second connecting plate (42), the right end of the wheel plate (4) is provided with a third connecting plate (43), and the left end of the wheel plate (4) is provided with a fixing plate (44).
3. The four-axis test bench fixture for steering knuckle components according to claim 2, characterized in that: The movable ends of the braking force loading cylinder (5) and the lateral force loading cylinder (6) are both connected to the second connecting plate (42) via a first fisheye bearing (45).
4. The four-axis test bench fixture for steering knuckle components according to claim 2, characterized in that: The third connecting plate (43) is connected to the longitudinal force loading cylinder (7) via a second fisheye bearing (46).
5. The four-axis test bench fixture for steering knuckle components according to claim 2, characterized in that: The first connecting plate (41) is connected to the vertical force loading cylinder (8) via a third fisheye bearing (47).
6. The four-axis test bench fixture for steering knuckle components according to claim 1, characterized in that: The ends of the braking force loading cylinder (5), the lateral force loading cylinder (6) and the longitudinal force loading cylinder (7) are all rotatably provided with sliders (11), one side of the slider (11) is provided with a mounting seat (10) connected to the workbench (1), and the slider (11) can be moved up and down along the mounting seat (10) for adjustment.