EPS steering testboard jacking assembly

Abstract

The utility model provides a jacking assembly of an EPS steering testboard. The problems that an existing traditional test platform is simple in structure and not comprehensive in detection are solved. According to the utility model, road condition simulation under different conditions can be realized by jacking the supporting plate through the lifter, the use is simple and convenient, the control is accurate, data collection is convenient, the jacking assemblies are symmetrically arranged on the two sides of the mounting platform, independent or simultaneous lifting is realized, the test of equipment under various road conditions is realized, and the test effect is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a jacking component of an EPS steering test bench. Background Art

[0002] An electric power steering (EPS) system is a power steering system that directly relies on an electric motor to provide assist torque. Compared to traditional hydraulic power steering (HPS), the EPS system offers numerous advantages. The EPS primarily consists of a torque sensor, a vehicle speed sensor, an electric motor, a reduction gear mechanism, and an electronic control unit (ECU). The operating stability and handling characteristics of the electric power steering system are crucial to driving safety and overall vehicle performance. Therefore, effective testing of the steering gear's various performance characteristics and torque sensor calibration are essential. However, traditional test platforms are simple in structure, lack comprehensive testing, and existing technologies offer potential for improvement. Summary of the Invention

[0003] In response to the above-mentioned existing situation, the present utility model provides an EPS steering test bench jacking assembly, which is arranged on a base, and a mounting platform is fixedly arranged on the base. There are two jacking assemblies and they are respectively located on both sides of the above-mentioned mounting platform. It is characterized in that it includes a mounting block fixedly arranged on the base and two oppositely arranged fixed plates, the two fixed plates are respectively fixedly arranged on the above-mentioned mounting block and the mounting platform, and a jacking station is formed above the mounting platform and between the two fixed plates. A support plate is movably arranged in the jacking station, and a lift for jacking the support plate is movably arranged under the support plate. The lift is fixedly arranged on a movable plate, and the lower end of the movable plate is fixedly arranged on the base through a plurality of weighing sensors. A motor for driving the above-mentioned lift to realize the up and down movement of the support plate is fixedly arranged on the movable plate.

[0004] Preferably, two elevators are provided and arranged opposite to each other on the movable plate.

[0005] Preferably, a commutator is provided between the two elevators, and the motor drives the elevators to operate via the commutator.

[0006] Preferably, a connecting plate is fixedly provided at the upper end of the elevator for abutting against the lower end of the above-mentioned support plate.

[0007] Preferably, four weighing sensors are provided and evenly distributed between the movable plate and the base.

[0008] Preferably, both sides of the support plate are movably arranged on two fixed plates through second guide rails.

[0009] Preferably, a casting plate is fixedly provided on the support plate for abutting against below the tire of the sub-frame, and the casting plate is cast by cement.

[0010] Preferably, a plurality of limit blocks are fixedly provided on the upper end of the fixed plate, the limit blocks extend in the horizontal direction, and one end of the limit block is located above the above-mentioned support plate.

[0011] Compared with the existing technology, the utility model can simulate road conditions under different conditions by lifting the support plate with a lift. It is simple and convenient to use, has precise control, and is convenient for data collection. The lifting components are symmetrically arranged on both sides of the installation platform, which can be lifted separately or simultaneously, realizing the testing of equipment under various road conditions, and the test effect is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model after installation.

[0013] Figure 2 It is a structural diagram of the movable plate.

[0014] Figure 3 It is a structural diagram of the fixed plate.

[0015] Markings in the figure: 3. Base; 4. Mounting platform; 28. Mounting block; 29. ​​Fixed plate; 30. Support plate; 31. Lifter; 32. Weighing sensor; 33. Motor; 34. Commutator; 35. Connecting plate; 36. Second guide rail; 37. Casting plate; 38. Limit block; 39. Movable plate. DETAILED DESCRIPTION

[0016] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0017] like Figure 1-3As shown, a jacking assembly of an EPS steering test bench is provided on a base 3, on which a mounting platform 4 is fixedly provided. The jacking assembly is provided with two jacking assemblies and is respectively located on both sides of the above-mentioned mounting platform 4, including a mounting block 28 fixedly provided on the base 3 and two oppositely arranged fixed plates 29. The two fixed plates 29 are respectively fixedly provided on the above-mentioned mounting block 28 and the mounting platform 4. A jacking station is formed above the mounting platform 4 and between the two fixed plates 29. A support plate 30 is movably provided in the jacking station. The two sides of the support plate 30 are movably provided on the two fixed plates 29 through second guide rails 36. A lifter 31 for lifting the support plate 30 is movably provided below the support plate 30. The lifter 31 is fixed on a movable plate 39. The lower end of the movable plate 39 is fixed to the base 3 through a plurality of weighing sensors 32. There are four weighing sensors 32 and they are evenly distributed between the movable plate 39 and the base 3. A motor 33 for driving the lifter 31 to move the support plate 30 up and down is fixed on the movable plate 39. Several stoppers 38 are fixed to the upper end of the fixing plate 29. These stoppers 38 extend horizontally, with one end positioned above the support plate 30. A cement-casting plate 37 is fixed to the support plate 30, designed to rest against the underside of the subframe tires. After the subframe is installed, the wheels press against the cement-casting plate. A lift 31 drives the support plate 30 vertically, adjusting the position between the wheels and the cement-casting plate for different road conditions. Multiple load cells 32 accurately measure the force applied to the wheels during steering, providing more accurate detection. The contact between the cement-casting plate 37 and the tires allows for more accurate simulation of actual tire usage. Two lifting assemblies 6 are symmetrically positioned on either side of the mounting platform 4, enabling individual or simultaneous lifting and lowering, enabling testing of the equipment under various road conditions and achieving more accurate results.

[0018] Two elevators 31 are provided, positioned opposite each other on the movable plate 39. A commutator 34 is positioned between the two elevators 31, through which the motor 33 drives the elevators 31. A connecting plate 35 is fixed to the upper end of each elevator 31, designed to rest against the lower end of the support plate 30. The two elevators 31 are synchronously driven with a single click, ensuring consistent movement of the elevators 31 and greater stability during support plate 30 movement.

[0019] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising from these variations or modifications to the specification remain within the scope of protection of this utility model.

Claims

1. An EPS steering test bench jacking assembly is arranged on a base (3), a mounting platform (4) is fixedly arranged on the base (3), two jacking assemblies are provided and are respectively located on both sides of the mounting platform (4), and is characterized in that: The invention comprises a mounting block (28) fixedly arranged on a base (3) and two fixed plates (29) arranged opposite to each other, wherein the two fixed plates (29) are respectively fixedly arranged on the mounting block (28) and the mounting platform (4), and a lifting station is formed above the mounting platform (4) and between the two fixed plates (29), wherein a support plate (30) is movably arranged in the lifting station, and an elevator (31) for lifting the support plate (30) is movably arranged below the support plate (30), and the elevator (31) is fixedly arranged on a movable plate (39), and the lower end of the movable plate (39) is fixedly arranged on the base (3) through a plurality of weighing sensors 32, and a motor (33) for driving the elevator (31) to work and realize the upward and downward movement of the support plate (30) is fixedly arranged on the movable plate (39).

2. The EPS steering test bench jacking assembly according to claim 1, characterized in that: The elevators (31) are provided in two numbers and are arranged opposite to each other on the movable plate (39).

3. The EPS steering test bench jacking assembly according to claim 2, characterized in that: A commutator (34) is provided between the two elevators (31), and the motor (33) drives the elevators (31) to work via the commutator (34).

4. The EPS steering test bench jacking assembly according to claim 2, characterized in that: A connecting plate (35) is fixedly provided at the upper end of the elevator (31) for abutting against the lower end of the support plate (30).

5. The EPS steering test bench jacking assembly according to claim 1, characterized in that: Four weighing sensors (32) are provided and are evenly distributed between the movable plate (39) and the base (3).

6. The EPS steering test bench jacking assembly according to claim 1, characterized in that: Both sides of the support plate (30) are movably arranged on the two fixed plates (29) via second guide rails (36).

7. The EPS steering test bench jacking assembly according to claim 1, characterized in that: A casting plate (37) for abutting against the underside of the sub-frame tire is fixedly provided on the support plate (30), and the casting plate (37) is cast from cement.

8. The EPS steering test bench jacking assembly according to claim 1, characterized in that: A plurality of limit blocks (38) are fixedly provided on the upper end of the fixed plate (29), the limit blocks (38) extending in the horizontal direction, and one end of the limit block (38) is located above the support plate (30).

Images