Tubular column collapse energy absorption testing device capable of adjusting inclination angle

Abstract

The utility model relates to the technical field of steering systems, in particular to a tubular column collapse energy absorption testing device with an adjustable inclination angle. An inclination-angle-adjustable pipe column collapse energy absorption testing device is characterized in that the left side and the right side of a bottom plate are connected with supports respectively, a jacking assembly is arranged at the front side position between the supports on the left side and the right side, the jacking assembly is connected with one end of an inclination angle T-shaped table top through a jacking connecting piece, and the other end of the inclination angle T-shaped table top is connected with a rotating shaft assembly; the left and right sides of the rotating shaft assembly are respectively connected with the left and right brackets; the left side and the right side of the jacking connecting piece are connected with the supports on the left side and the right side through locking assemblies correspondingly. Compared with the prior art, the pipe column collapse energy absorption testing device with the adjustable inclination angle can simulate the actual collision working condition more truly, and the testing precision and reliability are improved; the testing device is simple in structure, convenient to operate and capable of meeting the testing requirements of different types of tubular column collapse energy absorption mechanisms.

Description

Technical Field

[0001] The utility model relates to the technical field of steering systems, in particular to a column collapse energy absorption testing device with adjustable tilt angle. Background Art

[0002] In a car crash, the string's crush mechanism plays a crucial role in protecting the lives of drivers and passengers. However, current string crush testing is limited to vertical installation and single-direction force and displacement data collection. To meet new customer requirements for testing the string crush mechanism at the vehicle-mounted position, it is necessary to establish testing capabilities for the string crush mechanism at various angles, design an adjustable mounting platform to accommodate these angles, and develop a new testing and data collection system to capture and process force and displacement data from the string crush mechanism in three directions. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a pipe column collapse energy absorption testing device with adjustable tilt angle, which has a simple structure and is easy to operate, and can meet the testing requirements of different types of pipe column collapse energy absorption mechanisms.

[0004] In order to achieve the above-mentioned purpose, a pipe column collapse energy absorption test device with adjustable inclination angle is designed, which includes an inclination T-shaped table, a rotating shaft assembly, a jacking assembly, a locking assembly, a base plate, and a bracket. The device is characterized in that the left and right sides of the base plate are respectively connected to the brackets, and a jacking assembly is provided at the front position between the left and right brackets. The jacking assembly is connected to one end of the inclination T-shaped table through a jacking connector, and the other end of the inclination T-shaped table is connected to the rotating shaft assembly. The left and right sides of the rotating shaft assembly are respectively connected to the brackets on the left and right sides; the left and right sides of the jacking connector are respectively connected to the brackets on the left and right sides through the locking assembly.

[0005] The inclined T-shaped table top comprises a T-slot table top and a table top base. The bottom of the T-slot table top is connected to the table top base. A T-shaped groove is provided on the T-slot table top.

[0006] The rotating shaft assembly includes a bearing clamping block, a rotating shaft, and a bearing. The rotating shaft passes through the left bracket, the front side of the table base, and the right bracket from left to right, and the left and right ends of the rotating shaft are respectively connected to the bearing clamping blocks, and bearings are respectively provided between the left and right ends of the rotating shaft and the bearing clamping blocks.

[0007] The jacking assembly includes a jacking fixed seat, a screw rod, a nut, a table jacking rotating seat assembly, and a movable locking plate. The bottom of the jacking fixed seat is connected to the base. The top of the jacking fixed seat is a U-shaped groove. A nut is provided in the U-shaped groove. The nut is connected to the screw rod. The end of the screw rod is connected to the rear side of the table base through the table jacking rotating seat assembly.

[0008] The left and right sides of the nut are fixedly connected to the jacking fixing seat.

[0009] The table top lifting and rotating seat assembly includes a table top connecting seat and a screw rod connecting piece. The bottom of the table top connecting seat is connected to the rear side of the table top base. The top of the table top connecting seat is a U-shaped groove, and the U-shaped groove is connected to the end of the screw rod through the screw rod connecting piece.

[0010] A movable locking plate is provided on the left and right sides of the screw rod, one end of the movable locking plate is connected to the bracket, and the other end of the movable locking plate is connected to the side of the table base.

[0011] The movable locking plate is provided with a sliding groove.

[0012] The locking assembly includes a screw bearing seat, a screw, and an adjusting washer. The screw passes through the sliding grooves on the bracket and the movable locking plate respectively, and the two ends of the screw are connected to the screw bearing seat and the adjusting washer. The screw bearing seat is located on the outside of the bracket, and the adjusting washer is located on the inside of the movable locking plate.

[0013] Compared with the existing technology, the present invention provides a pipe column crush energy absorption test device with an adjustable inclination angle, which can more realistically simulate actual collision conditions and improve test accuracy and reliability; the test device has a simple structure and is easy to operate, and can meet the testing requirements of different types of pipe column crush energy absorption mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the utility model.

[0015] Figure 2 This is an exploded view of the structure of the utility model.

[0016] Figure 3 This is a state diagram of the structure used in this utility model. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 , Figure 2 As shown, the left and right sides of the base plate 5 are respectively connected to the brackets 6, and a jacking assembly 3 is provided at the front position between the left and right brackets 6. The jacking assembly 3 is connected to one end of the inclined T-shaped table 1 through a jacking connector, and the other end of the inclined T-shaped table 1 is connected to the rotating shaft assembly 2. The left and right sides of the rotating shaft assembly 2 are respectively connected to the brackets 6 on the left and right sides; the left and right sides of the jacking connector are respectively connected to the brackets 6 on the left and right sides through the locking assembly 4.

[0019] The inclined T-shaped table top 1 comprises a T-slot table top and a table top base. The bottom of the T-slot table top 1-1 is connected to the table top base 1-2. A T-shaped groove is provided on the T-slot table top 1-1.

[0020] The rotating shaft assembly 2 includes a bearing clamping block, a rotating shaft, and a bearing. The rotating shaft 2-1 passes through the left bracket 6, the front side of the table base 1-2, and the right bracket 6 from left to right, and the left and right ends of the rotating shaft 2-1 are respectively connected to the bearing clamping block 2-3, and bearings 2-2 are respectively provided between the left and right ends of the rotating shaft 2-1 and the bearing clamping block 2-3.

[0021] The ends of the rotating shaft 2-1 are locked to the sides of the vertical plate by bearings 2-2, bearing clamping blocks 2-3, and bearing retaining rings. The cooperation of bearings 2-2 allows the rotating shaft 2-1 to rotate around its own axis. At the same time, it is connected to the table base 1-2 and fixed with a set screw. This allows the T-slot table 1-1 to rotate synchronously with the axis of the rotating shaft 2-1.

[0022] The jacking assembly 3 includes a jacking fixed seat, a screw rod, a nut, a table jacking rotating seat assembly, and a movable locking plate. The bottom of the jacking fixed seat 3-1 is connected to the base plate 5. The top of the jacking fixed seat 3-1 is a U-shaped groove. A nut 3-3 is provided in the U-shaped groove. The nut 3-3 is connected to the screw rod 3-2. The end of the screw rod 3-2 is connected to the rear side of the table base 1-2 through the table jacking rotating seat assembly.

[0023] The left and right sides of the nut 3-3 are fixedly connected to the jacking fixing seat 3-1.

[0024] The table top lifting and rotating seat assembly includes a table top connecting seat and a screw rod connecting piece. The bottom of the table top connecting seat 3-4 is connected to the rear side of the table base 1-2. The top of the table top connecting seat 3-4 is a U-shaped groove, and the U-shaped groove is connected to the end of the screw rod 3-2 through the screw rod connecting piece 3-6.

[0025] Movable locking plates 3-5 are respectively provided on the left and right sides of the screw rod 3-2. One end of the movable locking plate 3-5 is connected to the bracket 6, and the other end of the movable locking plate 3-5 is connected to the side of the table base 1-2.

[0026] The movable locking plate 3-5 is provided with a sliding groove 3-5-1.

[0027] The lifting fixed seat 3-1 is fixed on the base plate 5. The connection between the screw rod 3-2 and the nut 3-3 allows it to rotate relative to the lifting fixed seat 3-1. The table top lifting rotating seat assembly is fixed relative to the T-slot table top 1-1, and the T-slot table top 1-1 can rotate through the rotating shaft 2-1. When the screw rod 3-2 rotates and advances in the nut 3-3, its radial vector is fixed, and the screw rod 3-2 moves tangentially relative to the lifting fixed seat 3-1 with the nut 3-3 as the center of the circle. At the same time, it pushes forward against the table top lifting rotating seat assembly, and then the table top lifting rotating seat assembly moves tangentially around the axis of its own shaft. In this way, the T-slot table top 1-1 is lifted. At this time, the T-slot table top 1-1 produces a rotational motion with the rotating shaft 2-1 as the center of the circle and the table top lifting rotating seat assembly as the force point.

[0028] The locking assembly 4 includes a screw bearing seat, a screw, and an adjusting washer. The screw 4-1 passes through the bracket 6 and the sliding groove 3-5-1 on the movable locking plate 3-5 respectively, and the two ends of the screw 4-1 are connected to the screw bearing seat 4-2 and the adjusting washer 4-3. The screw bearing seat 4-2 is located on the outside of the bracket 6, and the adjusting washer 4-3 is located on the inside of the movable locking plate 3-5.

[0029] One end of the movable locking plate 3-5 is locked against the side of the T-slot table 1-1. The screw bearing seat 4-2, screw 4-1, adjustment washer 4-3, and wear-resistant copper washer pass concentrically through the sliding groove 3-5-1 of the movable locking plate 3-5. When the knob is tightened on the nut of the screw 4-1, the screw 4-1 and the nut clamp the movable locking plate 3-5, locking the T-slot table 1-1 with it.

[0030] like Figure 3 As shown, the specific operating steps of the device of the utility model are as follows:

[0031] (1) Fix the product on the T-slot table 1-1 according to the different models of the steering column to be tested;

[0032] (2) Fit the contoured spline ring of the three-axis force test fixture to the product and lock it;

[0033] (3) Use the hand screw 3-2 to lift the T-slot table 1-1, and use the level to raise the T-slot table 1-1 to the required angle, and then tighten the locking nut on the inside of the locking assembly 4 to stop the T-slot table 1-1;

[0034] (4) Adjust the position of the three-axis force test fixture to below the press head disc, approximately at the center of the circle;

[0035] (5) Connect the three-axis force test sensor to the measuring equipment;

[0036] (6) Start the tension and press machine. At this time, the tension and press machine disc exerts force downward, and the force is transmitted to the sensor by the joint bearing. Due to the characteristics of the joint bearing, the direction of the resultant force of the radial force and the axial force stroke is opposite to the center of the bearing ball, which offsets and eliminates the measurement error to the greatest extent;

[0037] (7) The fixed output of the tension and press is transmitted to the sensor through the tooling, and the measuring equipment measures, collects, records, and analyzes the data.

Claims

1. A pipe column collapse energy absorption test device with adjustable tilt angle, comprising an inclined T-shaped table, a rotating shaft assembly, a lifting assembly, a locking assembly, a base, and a bracket, characterized in that: The left and right sides of the bottom plate (5) are respectively connected to the brackets (6); a jacking assembly (3) is provided at the front position between the left and right brackets (6); the jacking assembly (3) is connected to one end of the inclined T-shaped table (1) through a jacking connector; the other end of the inclined T-shaped table (1) is connected to the rotating shaft assembly (2); the left and right sides of the rotating shaft assembly (2) are respectively connected to the brackets (6) on the left and right sides; the left and right sides of the jacking connector are respectively connected to the brackets (6) on the left and right sides through locking assemblies (4).

2. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 1, characterized in that: The inclined T-shaped table top (1) comprises a T-slot table top and a table top base. The bottom of the T-slot table top (1-1) is connected to the table top base (1-2). The T-slot table top (1-1) is provided with a T-shaped groove.

3. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 1, characterized in that: The rotating shaft assembly (2) comprises a bearing clamping block, a rotating shaft, and a bearing. The rotating shaft (2-1) passes through the left bracket (6), the front side of the table base (1-2), and the right bracket (6) from left to right, and the left and right ends of the rotating shaft (2-1) are respectively connected to the bearing clamping block (2-3). Bearings (2-2) are respectively provided between the left and right ends of the rotating shaft (2-1) and the bearing clamping block (2-3).

4. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 1, characterized in that: The jacking assembly (3) includes a jacking fixed seat, a screw rod, a nut, a table top jacking rotating seat assembly, and a movable locking plate. The bottom of the jacking fixed seat (3-1) is connected to the base plate (5). The top of the jacking fixed seat (3-1) is a U-shaped groove. A nut (3-3) is provided in the U-shaped groove. The nut (3-3) is connected to the screw rod (3-2). The end of the screw rod (3-2) is connected to the rear side of the table top base (1-2) through the table top jacking rotating seat assembly.

5. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 4, characterized in that: The left and right sides of the nut (3-3) are fixedly connected to the jacking fixing seat (3-1).

6. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 4, characterized in that: The table top lifting and rotating seat assembly comprises a table top connecting seat and a screw rod connecting piece. The bottom of the table top connecting seat (3-4) is connected to the rear side of the table top base (1-2). The top of the table top connecting seat (3-4) is a U-shaped groove. The U-shaped groove is connected to the end of the screw rod (3-2) via the screw rod connecting piece (3-6).

7. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 4, characterized in that: A movable locking plate (3-5) is provided on the left and right sides of the screw rod (3-2), one end of the movable locking plate (3-5) is connected to the bracket (6), and the other end of the movable locking plate (3-5) is connected to the side of the table base (1-2).

8. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 7, characterized in that: The movable locking plate (3-5) is provided with a sliding groove (3-5-1).

9. The pipe column collapse energy absorption testing device with adjustable tilt angle according to claim 1, characterized in that: The locking assembly (4) includes a screw bearing seat, a screw, and an adjusting washer. The screw (4-1) passes through the sliding groove (3-5-1) on the bracket (6) and the movable locking plate (3-5), and the two ends of the screw (4-1) are connected to the screw bearing seat (4-2) and the adjusting washer (4-3). The screw bearing seat (4-2) is located on the outside of the bracket (6), and the adjusting washer (4-3) is located on the inside of the movable locking plate (3-5).

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