A V-type thrust rod test bench

Abstract

The utility model relates to a V type thrust rod test bench, including base, is used to bear the reaction force in the test, mounting seat, both sides are equipped with U type support and are connected with the small end bolt of V type thrust rod, over connection board is equipped with fixed base and is connected with the V type end bolt of V type thrust rod, lift adjustment subassembly, bottom end extends downward and is hingedly connected with the top of over connection board, axial actuator subassembly, and is respectively located the transverse and longitudinal direction interval arrangement of over connection board, and axial actuator subassembly's end portion is hingedly connected with over connection board, shaking subassembly, is fixedly installed on over connection board, this application can synchronous exert transverse, longitudinal multidirectional thrust, cooperate the shaking subassembly arranged close to V type end, realize the composite working condition simulation of'multidirectional load + vibration', accurate recurrence axle bridge's actual stress state when V type thrust rod is excited by road surface in vehicle driving, more close to real working condition.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to a V-shaped thrust rod test bench. Background Technology

[0002] The V-shaped thrust rod, as a key connecting component between the axle and the chassis, primarily functions to transmit longitudinal and lateral forces and their moments, such as traction, braking force, and centrifugal force during vehicle cornering. This ensures the longitudinal and lateral stability of the axle during vehicle movement and braking, maintaining its stable position. Because the V-shaped thrust rod is subjected to complex multi-directional loads and vibrations during actual vehicle operation, testing its mechanical properties, durability, and reliability is particularly important.

[0003] Currently, most test benches for V-type thrust rods suffer from limited functionality and incomplete simulation of various operating conditions. Traditional test benches can often only apply thrust in a single direction, making it difficult to simultaneously simulate the combined effects of lateral, longitudinal, and other directional loads during vehicle operation. Furthermore, their ability to adjust the tilt angle of the V-type thrust rod is limited, failing to accurately reproduce the actual stress state of the V-type thrust rod under different road conditions. In addition, existing test benches lack flexibility in the arrangement of vibration sources, making it difficult to achieve synergy with multi-directional thrust loading. This leads to significant deviations between test results and actual operating conditions, especially when simulating vehicle vibrations on bumpy roads, which, combined with the aforementioned multi-directional loads, create real-world operating scenarios.

[0004] Therefore, there is an urgent need for a test bench that can simulate the combined effects of multi-directional loads and vibrations, adjust the thrust rod tilt angle, and effectively reduce the impact of vibration, so as to more comprehensively and accurately evaluate the overall performance of V-type thrust rods and provide a reliable basis for their design optimization and quality improvement. Utility Model Content

[0005] Based on the above description, this utility model provides a V-shaped thrust rod test bench to solve the problem that existing V-shaped thrust rod test equipment is unable to simultaneously simulate the combined effects of lateral, longitudinal and other loads during vehicle operation, resulting in a large deviation between the test results and the actual working conditions.

[0006] This utility model is achieved through the following technical solution:

[0007] A V-shaped thrust rod test bench, comprising:

[0008] The base is horizontally placed on the ground and fixed with bolts to bear the reaction force during the test;

[0009] The mounting base is vertically fixed at the center of the bottom surface of the base, and both sides of the mounting base are provided with U-shaped brackets and bolted to the small end of the V-shaped thrust rod.

[0010] Two transition connecting plates are provided and are spaced apart from the U-shaped bracket on the mounting base. The transition connecting plates are provided with fixing seats and are bolted to the V-shaped end of the V-shaped thrust rod.

[0011] The lifting adjustment assembly is provided in two sets and is arranged on both sides of the mounting base. The bottom end of the lifting adjustment assembly extends downward and is movably hinged to the top end of the transition connecting plate, so as to drive the transition connecting plate to lift and adjust and control the tilt angle of the V-shaped thrust rod.

[0012] Two sets of axial actuator assemblies are provided and are respectively arranged at intervals in the transverse and longitudinal directions of the transition connecting plate, and the ends of the axial actuator assemblies are movably hinged to the transition connecting plate.

[0013] The vibration assembly is fixedly mounted on the transition connection plate via a motor mount and is arranged close to the V-shaped end of the V-shaped thrust rod.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the base is provided with a sliding groove, and the mounting seat and the lifting adjustment component are slidably installed inside the sliding groove. The bottom surface of the sliding groove is also provided with several through holes, and each through hole is provided with a thread. The mounting seat and the lifting adjustment component are locked and fixed to the base by bolts.

[0016] Furthermore, the lifting adjustment assembly includes brackets disposed on both sides of the mounting base, mounting plates are horizontally arranged on the top surfaces of the two brackets, and at least two hydraulic cylinders are provided on the mounting plates, with the bottom ends of the two hydraulic cylinders extending vertically downwards and having hinge joints at their ends.

[0017] Furthermore, the axial actuator assembly includes a transverse hydraulic push rod and a longitudinal hydraulic push rod. The transverse hydraulic push rod and the longitudinal hydraulic push rod are arranged in pairs and extend toward the transition connecting plate. The bottom of the transverse hydraulic push rod and the longitudinal hydraulic push rod are fixedly connected to the base bolts by a support. The ends of the transverse hydraulic push rod and the longitudinal hydraulic push rod are also provided with hinge joints.

[0018] Furthermore, the transition connecting plate is rectangular and has three sets of hinge seats on the side facing the mounting base. The hinge joints located on the hydraulic cylinder, the transverse hydraulic push rod and the longitudinal hydraulic push rod are simultaneously hinged to the three sets of hinge seats.

[0019] Furthermore, the hinge joint located on the hydraulic cylinder, the transverse hydraulic push rod and the longitudinal hydraulic push rod is also provided with an elastic element inside. The elastic element is set as a rubber sleeve, and the two ends of the elastic element extend outward and completely cover the two end faces of the hinge joint.

[0020] Furthermore, the vibration assembly includes a vibration motor bolted to the surface of the transition connection plate via a motor mount, and the vibration motor is externally connected to the control console via wires.

[0021] Furthermore, the transverse hydraulic push rod and the longitudinal hydraulic push rod are also equipped with force sensors and displacement sensors, and the force sensors and displacement sensors are arranged close to the hinge joint.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0023] 1. This application improves upon the existing V-shaped thrust rod test bench by using an axial actuator assembly composed of a transverse hydraulic push rod and a longitudinal hydraulic push rod to simultaneously apply thrust in multiple directions, including transverse and longitudinal directions. Combined with a vibration assembly arranged near the V-shaped end, it achieves a composite working condition simulation of "multi-directional load + vibration," accurately reproducing the actual stress state of the V-shaped thrust rod when the axle is excited by the road surface during vehicle operation. This is closer to the real working condition than the traditional single-direction loading test bench. Furthermore, the two sets of lifting and adjusting assemblies drive the transition connecting plate to lift and lower via hydraulic cylinders, which can precisely control the tilt angle of the V-shaped thrust rod and meet the testing requirements of the V-shaped thrust rod installation angle under different vehicle models or road conditions.

[0024] 2. The base slide groove design in this application allows the mounting base and lifting adjustment component to slide laterally. Combined with the adjustment of the distance between the transition connecting plate and the mounting base, it can be adapted to the testing of V-shaped thrust rods of different specifications (such as length and angle), without the need for additional customized tooling, thus reducing the cost of equipment use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the base, mounting base, transition connection plate and upgrade adjustment assembly in this embodiment;

[0026] Figure 2 This is a schematic diagram of the structure of the base, mounting base, transition connecting plate and axial actuator assembly in this embodiment;

[0027] Figure 3 This is a schematic diagram of the hinge seat and hinge joint in this embodiment;

[0028] Figure 4 This is a schematic diagram of the transition connection plate in this embodiment;

[0029] Labels: 1. Base; 11. Slide groove; 2. Mounting seat; 21. U-shaped bracket; 3. Transition connecting plate; 31. Hinge seat; 32. Hinge joint; 33. Rubber sleeve; 34. Fixed seat; 4. Lifting adjustment assembly; 41. Hydraulic cylinder; 5. Axial actuator assembly; 51. Lateral hydraulic push rod; 52. Longitudinal hydraulic push rod; 6. Vibration assembly. Detailed Implementation

[0030] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0032] Combination Figure 1-4 As shown, a V-shaped thrust rod test bench includes:

[0033] Base 1, which is a rectangular plate and is horizontally arranged on the bottom surface or workbench by anchor bolts, and has a sliding groove 11 on its surface.

[0034] Mounting base 2 is vertically fixed at the center of the bottom surface of base 1, and both sides of mounting base 2 are provided with U-shaped brackets 21 and bolted to the small end of the V-shaped thrust rod for initial fixation.

[0035] The transition connecting plate 3 is set as a rectangular metal plate, and a fixing seat 34 is provided on the side facing the mounting seat 2 and bolted to the V-shaped end of the V-shaped thrust rod, thereby fixing the entire V-shaped thrust rod;

[0036] The lifting adjustment assembly 4 is provided in two sets, which are respectively arranged on both sides of the mounting base 2 and connected to the transition connecting plate 3. It is used to drive the transition connecting plate 3 to lift and adjust, so as to make adaptive adjustments according to the size and tilt angle of each V-shaped thrust rod. This allows the staff to accurately control the tilt angle of the V-shaped thrust rod and meet the testing requirements of the installation angle of the V-shaped thrust rod under different vehicle models or road conditions.

[0037] The axial actuator assembly 5 includes a transverse hydraulic push rod 51 and a longitudinal hydraulic push rod 52, which are a pair. The hydraulic push rod is preferably a Rexroth M series, and the appropriate model is selected according to the actual required stroke and thrust. The transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52 are used to apply thrust and tension in the transverse and longitudinal directions, respectively, thereby realizing the simulation of composite working conditions of multi-directional loads.

[0038] Vibration component 6, i.e. vibration motor, is mounted on transition connection plate 3. Based on the operation of the axial actuator component 5, it uses vibration in conjunction with the motor to accurately reproduce the actual force state of the V-shaped thrust rod when the axle is excited by the road surface during vehicle operation, which is closer to the real working condition than the traditional single-direction loading test bench.

[0039] Specifically; in this embodiment, the appendix Figure 1 and attached Figure 2 For ease of demonstration, the base 1 is combined with the axial actuator assembly 5 and the lifting adjustment assembly 4 respectively. In actual use, the bracket in the lifting adjustment assembly 4 should be arranged around the axial actuator assembly 5 so that the axial actuator assembly 5 and the lifting adjustment assembly 4 can work together.

[0040] Both the mounting base 2 and the lifting adjustment assembly 4 are slidably installed inside the slide groove 11 through the protrusion at the bottom. The bottom surface of the slide groove 11 is also provided with through holes, which are arranged in a linear array along the direction of the slide groove 11. Each through hole has a thread on its inner sidewall. The mounting base 2 and the lifting adjustment assembly 4 are locked and fixed to the base 1 by bolts. Therefore, the operator can adjust the distance between the transition connecting plate 3 and the mounting base 2 according to the size of the V-shaped thrust rod, so that it can be used for testing V-shaped thrust rods of different specifications (such as length and angle) without the need for additional customized tooling, which effectively reduces the operating cost of the equipment.

[0041] The lifting and adjusting assembly 4 includes brackets disposed on both sides of the mounting base 2. A mounting plate is horizontally arranged on the top surface of the two brackets, and at least two hydraulic cylinders 41 are mounted on the mounting plate. Each hydraulic cylinder 41 needs to be equipped with a high-precision displacement sensor and a pressure control system, preferably a TAIYO hydraulic nut type cylinder. The bottom ends of the two hydraulic cylinders 41 extend vertically downwards and have hinge joints 32 at their ends. These hinge joints 32 are used for movable connection with the top end of the transition connecting plate 3. The two hydraulic cylinders 41 should be movably assembled with the mounting plate using a grooved structure, for example, with... Figure 1 As shown, when the axial actuator assembly 5 applies a lateral thrust, the position of the hydraulic cylinder 41 can be adjusted toward the mounting base 2 to engage with the lateral hydraulic push rod 51, while the movable connection of the hinge joint 32 can engage with the longitudinal hydraulic push rod 52.

[0042] In addition, the transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52 are slidably mounted on the slide groove 11 on the top surface of the base 1 through the bottom support. After the position is adjusted, they should also be fixed with bolts. At the same time, the support should also have a lifting adjustment function so as to connect and fix the transition connecting plate 3 at different heights. The transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52 should also be hinged to the transition connecting plate 3 in the same way as the lifting adjustment assembly 4.

[0043] The above-mentioned connection structure between the hinge seat 31 and the hinge joint 32 is as follows: Figure 3 As shown, a gap should be left between the inner wall of the hinge seat 31 and the two outer walls of the hinge joint 32, and a positioning pin should be inserted into the center of both, and the two ends of the positioning pin should be locked and fixed. The purpose is to enable the transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52 to apply thrust at the same time without affecting each other, thereby realizing the simulation of composite working conditions of multi-directional load.

[0044] Furthermore, in order to effectively simulate the driving conditions on actual roads, it is necessary not only to arrange the V-shaped thrust rod at a fixed angle, but also to take into account the vibration generated by the chassis when driving on bumpy roads. Therefore, the vibration motor needs to be arranged on the transition connecting plate 3 and placed close to the V-shaped end of the V-shaped thrust rod so that the vibration can be transmitted to the V-shaped thrust rod, so that the thrust rod bears the combined effect of "static eccentric load + dynamic vibration", accurately reproducing the actual force state of the V-shaped thrust rod when the axle is excited by the road surface during vehicle driving, which is closer to the real working conditions than the traditional single-direction loading test bench.

[0045] Meanwhile, in order to avoid the vibration motor affecting the connection stability between the lifting adjustment assembly 4 and the axial actuator assembly 5 and the transition connecting plate 3, a rubber sleeve 33 should be added inside the hinge joint 32. Both ends of the rubber sleeve 33 extend to both sides of the hinge joint 32 and cover its ends to serve as a buffer structure for the hinge part. Furthermore, the elastic deformation of the elastic material can absorb the kinetic energy of the vibration motor, reduce the vibration amplitude, and thus reduce the impact of the vibration motor on other auxiliary components.

[0046] Force sensors and displacement sensors are also provided on the transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52. The force sensors are preferably 1-C6 / 20T / ZL or 1-C6 / 100T / ZK, used to measure the magnitude of the thrust applied by the transverse hydraulic push rod 51 and the longitudinal hydraulic push rod 52. The displacement sensors are preferably PeterHirt T502F-1:2.5 displacement sensors, used to measure the displacement of the V-shaped end of the V-shaped push rod.

[0047] Furthermore, strain gauges should be installed on the surface of the V-shaped thrust rod, such as the KYOWA KFG-3-120-C1-11 strain gauge (sensitivity coefficient 2.1, suitable for metal surfaces) or the Omega SG-120-3AA strain gauge (temperature resistance -30℃~100℃, suitable for dynamic measurement). In composite simulations, the thrust rod may simultaneously bear multiple loads such as bending and tension. Strain gauges can capture local stress concentration points (such as V-shaped corners and near hinge holes) to assess structural strength and fatigue risk. Additionally, accelerometers should be installed on the surface of the V-shaped thrust rod, such as the PCB 352C65 IEPE accelerometer (range ±50g, frequency range 0.5~10kHz) or the Kistler 8702B50M. The piezoelectric accelerometer (sensitivity 100mV / g, suitable for high-frequency vibration) can analyze the dynamic response of the thrust rod (such as whether the vibration amplitude exceeds the limit) when the composite simulation includes vibration load, and evaluate its vibration resistance performance in combination with displacement data.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. A V-shaped thrust rod test bench, characterized in that, include: The base (1) is horizontally placed on the ground and fixed with bolts to bear the reaction force in the test; Mounting base (2) is vertically fixed at the center of the bottom surface of base (1), and both sides of the mounting base (2) are provided with U-shaped brackets (21) and bolted to the small end of the V-shaped thrust rod; Two transition connecting plates (3) are provided and are spaced apart from the U-shaped bracket (21) on the mounting base (2). The transition connecting plate (3) is provided with a fixing seat (34) and is bolted to the V-shaped end of the V-shaped thrust rod. The lifting adjustment assembly (4) is provided in two sets and is arranged on both sides of the mounting base (2). The bottom end of the lifting adjustment assembly (4) extends downward and is hinged to the top end of the transition connecting plate (3) to drive the transition connecting plate (3) to lift and adjust and control the tilt angle of the V-shaped thrust rod. Two sets of axial actuator assemblies (5) are provided and are respectively arranged at intervals in the transverse and longitudinal directions of the transition connecting plate (3), and the ends of the axial actuator assemblies (5) are movably hinged to the transition connecting plate (3). The vibration assembly (6) is fixedly installed on the transition connection plate (3) and arranged close to the V-shaped end of the V-shaped thrust rod.

2. The V-shaped thrust rod test bench according to claim 1, characterized in that, The base (1) is provided with a sliding groove (11), the mounting seat (2) and the lifting adjustment component (4) are slidably installed inside the sliding groove (11), and the bottom surface of the sliding groove (11) is also provided with several through holes, each of the through holes is provided with threads, and the mounting seat (2) and the lifting adjustment component (4) are locked and fixed to the base (1) by bolts.

3. The V-shaped thrust rod test bench according to claim 2, characterized in that, The lifting adjustment assembly (4) includes brackets disposed on both sides of the mounting base (2), the top surfaces of the two brackets are horizontally arranged with mounting plates, and the mounting plates are provided with at least two hydraulic cylinders (41), the bottom ends of the two hydraulic cylinders (41) extend vertically downward and are provided with hinge joints (32) at the ends.

4. The V-shaped thrust rod test bench according to claim 3, characterized in that, The axial actuator assembly (5) includes a transverse hydraulic push rod (51) and a longitudinal hydraulic push rod (52). The transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) are arranged in pairs and extend toward the transition connecting plate (3). The bottom of the transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) are bolted to the base (1) through a support. The ends of the transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) are also provided with hinge joints (32).

5. The V-shaped thrust rod test bench according to claim 4, characterized in that, The transition plate (3) is rectangular and has three sets of hinge seats (31) on the side facing the mounting base (2). The hinge joints (32) located on the hydraulic cylinder (41), the transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) are simultaneously hinged to the three sets of hinge seats (31).

6. The V-shaped thrust rod test bench according to claim 5, characterized in that, The hinge joint (32) located on the hydraulic cylinder (41), the transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) is also provided with an elastic element inside. The elastic element is set as a rubber sleeve (33), and the two ends of the elastic element extend outward and completely cover the two end faces of the hinge joint (32).

7. The V-shaped thrust rod test bench according to claim 6, characterized in that, The vibration assembly (6) includes a vibration motor that is bolted to the surface of the transition plate (3) via a motor mount, and the vibration motor is externally connected to the control console via a wire.

8. The V-shaped thrust rod test bench according to claim 7, characterized in that, The transverse hydraulic push rod (51) and the longitudinal hydraulic push rod (52) are also equipped with force sensors and displacement sensors, and the force sensors and displacement sensors are arranged close to the hinge joint (32).

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