Shoulder structure for vehicle collision

Abstract

The present application relates to the technical field of vehicle crash test, and especially relates to a shoulder structure for vehicle crash, which comprises a first driving assembly arranged on a crash dummy, a first swing frame, the first driving assembly is in transmission connection with the first swing frame, and the first driving assembly can drive the first swing frame to swing forward and backward, a second driving assembly arranged on the first swing frame, a second swing frame, the second driving assembly is in transmission connection with the second swing frame, a third driving assembly arranged on the second swing frame, and a rotating shaft, the third driving assembly is in transmission connection with the rotating shaft, and the third driving assembly can drive the rotating shaft to rotate. The present application can actively respond, simulate the emergency response action of the upper limbs in the driver vehicle crash environment, and thus facilitate the analysis of the injury mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle crash test, in particular to a shoulder structure for vehicle crash. BACKGROUND

[0002] The dummy is a very important test tool in automobile crash test, directly participates in vehicle crash, and is responsible for test data output through various types of built-in sensors, so as to evaluate the damage position and damage degree of human body in the vehicle crash process. The test result has important significance for the evaluation of automobile crash safety performance and the safety protection of passengers. The commonly used dummy is a static crash test dummy, that is, the hinged movement of each joint needs external artificial adjustment. After adjusting the position of the dummy before the test, the dummy is only subjected to passive impact in the crash process.

[0003] However, in reality, when the driver perceives that a collision is about to occur, the driver will not be stationary from the moment before the collision to the collision process, but will have different emergency active responses. One of the common active responses is the movement of the upper limbs, including the driver operating the steering wheel with the left hand, operating the operating rod with the right hand, vehicle lane control, and driver upper limb emergency steering wheel operation. Although these movements are the result of the integrated movement of all joints of the human upper limbs, the active force provided by the shoulder is the power source for all active movements of the human upper limbs. At the same time, the active force of the shoulder can also be used to resist lateral movement to hold the steering wheel. The damage results of the human body caused by these active response movements are obviously different from the test results of the static crash test dummy. Therefore, the existing collision test dummy without active response movement cannot fully and truly reflect the human body damage mechanism in the vehicle crash process.

[0004] Therefore, a shoulder structure for vehicle crash is needed to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a shoulder structure for vehicle crash, which can actively respond to simulate the emergency response movements of the upper limbs in the driver's vehicle crash environment, thereby facilitating the analysis of the damage mechanism.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] The shoulder structure for vehicle crash comprises:

[0008] A first driving assembly is arranged on the crash dummy;

[0009] A first swing frame is drivingly connected with the first driving assembly, and the first driving assembly can drive the first swing frame to swing forward and backward;

[0010] A second driving assembly is arranged on the first swing frame;

[0011] A second swing frame is drivingly connected with the second driving assembly, and the second driving assembly can drive the second swing frame to swing outward and inward in the left-right direction;

[0012] A third driving assembly is arranged on the second swing frame;

[0013] A rotating shaft is drivingly connected with the third driving assembly, and the third driving assembly can drive the rotating shaft to rotate.

[0014] Further, the first driving assembly comprises a first motor fixedly arranged on the crash test dummy, the first swing frame is provided with a first mounting hole, the output shaft of the first motor passes through the first mounting hole and is arranged on the first swing frame, a damping member is arranged in the first mounting hole, one end of the damping member is connected with the output shaft of the first motor, and the other end of the damping member is connected with the first swing frame.

[0015] Further, a fixed end cover is fixedly sleeved on one end of the output shaft of the first motor relative to the first swing frame.

[0016] Further, a first limiting structure is arranged between the first motor and the first swing frame, and the first limiting structure can limit the angle of the front and rear swing of the first swing frame.

[0017] Further, the first limiting structure comprises a first limiting shaft, the first limiting shaft is fixedly arranged on the first motor, a first limiting arc-shaped groove is formed on the side of the first swing frame facing the first motor, and the first limiting shaft passes through the first limiting arc-shaped groove.

[0018] Further, the second driving assembly comprises a second motor, the output shaft of the second motor is rotatably connected with the first swing frame through the second swing frame, and the output shaft of the second motor is fixedly connected with the second swing frame.

[0019] Further, a second limiting structure is arranged between the second swing frame and the first swing frame, the second limiting structure comprises a second limiting shaft, the second limiting shaft is arranged on one side of the second swing frame, a second limiting arc-shaped groove is formed on the first swing frame, and the second limiting shaft passes through the second limiting arc-shaped groove.

[0020] Further, the third driving assembly comprises a third motor, the third motor is arranged on the second swing frame, and an output shaft of the third motor is fixedly connected with the rotating shaft through the second swing frame.

[0021] Further, a third limiting structure is arranged between the rotating shaft and the second swing frame, the third limiting structure comprises a first limiting piece, a second limiting piece and a third limiting piece, the first limiting piece and the second limiting piece are arranged on a side of the second swing frame away from the third motor, the rotating shaft is located between the first limiting piece and the second limiting piece, and the third limiting piece is arranged on the rotating shaft and can abut against the first limiting piece or the second limiting piece under the driving of the rotating shaft.

[0022] Further, a support is further arranged, the support is provided with a positioning hole, the support is fixedly connected with the second swing frame, the rotating shaft is arranged in the positioning hole, and the rotating shaft extends out of the positioning hole.

[0023] The present application has the following advantages:

[0024] The shoulder structure for vehicle collision provided by the present application comprises a first driving assembly arranged on a crash dummy, a first swing frame in transmission connection with the first driving assembly, a second driving assembly arranged on the first swing frame, a second swing frame in transmission connection with the second driving assembly, a third driving assembly arranged on the second swing frame, and a rotating shaft in transmission connection with the third driving assembly. The second driving assembly can drive the second swing frame to swing outward and inward in the left-right direction, and the third driving assembly can drive the rotating shaft to rotate, so as to simulate the outward rotation and inward rotation of the shoulder structure. In this way, the real movement of the human shoulder can be simulated, such as forward and backward swing, outward and inward swing, outward rotation and inward rotation, so as to drive the upper limb component of the dummy to produce different emergency responses, so as to simulate the active emergency response of the driver in the real collision environment. Not only can the collision damage research of the dummy be closer to the real situation, but also technical support can be provided for the next step of developing an overall intelligent crash dummy system with high bionics and active response behavior. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of the shoulder structure for vehicle collision of the present application;

[0026] Figure 2 is an exploded view of the shoulder structure for vehicle collision of the present application;

[0027] Figure 3 is a front view of the shoulder structure for vehicle collision of the present application;

[0028] Figure 4 is Figure 3 A-A sectional view in the figure

[0029] Figure 5 is Figure 3 is a B-B sectional view in the middle;

[0030] Figure 6 is a front sectional view of a shoulder structure for vehicle collision according to the present application;

[0031] Figure 7 is a schematic view of an upper limb structure assembly.

[0032] in the drawings:

[0033] 1, first driving assembly; 11, first motor; 12, damping member; 13, first limiting shaft; 2, first swing frame; 21, fixed end cover; 22, first limiting arc-shaped slot; 23, first bearing; 24, shaft check ring; 25, hole check ring; 26, mounting end cover; 27, second limiting arc-shaped slot; 3, second motor; 4, second swing frame; 41, second limiting shaft; 42, first limiting member; 43, second limiting member; 5, third driving assembly; 51, third motor; 6, rotating shaft; 61, bracket; 62, second bearing; 63, third limiting member; I, upper arm structure assembly; II, forearm structure assembly; III, hand structure assembly. DETAILED DESCRIPTION

[0034] The technical solutions of the present application will be further described below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, not all.

[0035] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0037] In reality, when the driver perceives that a collision is about to occur, the driver will not be stationary before and during the collision, but will instead have different emergency active responses, one of the common active responses being the movement of the upper limbs, including the driver operating the steering wheel with the left hand, operating the operating rod with the right hand, lane change control of the vehicle, and emergency rotation of the steering wheel by the driver's upper limbs. These movements are the result of the integrated movement of all joints of the human upper limbs, but the active force provided by the shoulder is the source of power for all active movements of the human upper limbs, and the active force of the shoulder can also be used to resist lateral movement to hold the steering wheel. The results of these active response movements are significantly different from the test results of the static crash test dummy, and therefore the existing crash test dummy without active response movements cannot fully and truly reflect the human injury mechanism during vehicle collision.

[0038] To solve the above problems, the shoulder structure can have active responses to simulate the emergency response movements of the upper limbs in the driver's vehicle collision environment, thereby facilitating analysis of the injury mechanism, such as Figures 1-7 As shown in the figure, the present application provides a shoulder structure for vehicle collision. The shoulder structure for vehicle collision includes a first driving assembly 1, a first swing frame 2, a second driving assembly, a second swing frame 4, a third driving assembly 5 and a rotating shaft 6.

[0039] The first driving assembly 1 is fixedly arranged on the crash dummy; the first driving assembly 1 is in transmission connection with the first swing frame 2, and the first driving assembly 1 can drive the first swing frame 2 to swing forward and backward; the second driving assembly is arranged on the first swing frame 2; the second driving assembly is in transmission connection with the second swing frame 4, and the second driving assembly can drive the second swing frame 4 to swing outward and inward in the left-right direction; the third driving assembly 5 is arranged on the second swing frame 4; the third driving assembly 5 is in transmission connection with the rotating shaft 6, and the third driving assembly 5 can drive the rotating shaft 6 to rotate.

[0040] By the above manner, the real action of the human shoulder can be simulated, such as forward and backward swing, abduction and adduction, external rotation and internal rotation, and further drive the upper limb component of the dummy to have different emergency responses, so as to simulate the active emergency response of the upper limbs of the driver in the real collision environment. Not only can the collision damage research of the dummy be closer to the real situation, but also can provide technical support for the next step of developing an overall intelligent collision dummy system with high bionics and active response behavior.

[0041] Further, the first driving assembly 1 comprises a first motor 11 fixedly arranged on the collision dummy, the first swing frame 2 is provided with a first mounting hole, the output shaft of the first motor 11 is arranged on the first swing frame 2 through the first mounting hole, and a damping member 12 is arranged in the first mounting hole, one end of the damping member 12 is connected with the output shaft of the first motor 11, and the other end of the damping member 12 is connected with the first swing frame 2. Specifically, a connecting flange is arranged on the first motor 11, and the first motor 11 is fixed on the collision dummy through the connecting flange. The output shaft of the first motor 11 is in transmission connection with the first swing frame 2 through a flat key, the first motor 11 can drive the first swing frame 2 to rotate, and realize the forward and backward swing of the shoulder structure. When the first motor 11 drives the first swing frame 2 to rotate, the damping member 12 is tightened or loosened, the reaction torque of the driver is simulated, different reaction sensitivities of different drivers can be simulated by replacing different damping members 12, different damping members 12 can be replaced according to the age and gender of the driver, and therefore the accuracy and pertinence of the simulated data are further improved. In the embodiment, the damping member 12 can be a vortex spring or a torsion spring, which is not limited here.

[0042] Further, the first driving assembly 1 further comprises a fixed end cover 21, which is fixedly sleeved on one end of the output shaft of the first motor 11 relative to the first swing frame 2. Specifically, the fixed end cover 21 is fixed on the output shaft of the first motor 11 through bolts, and the fixed end cover 21 can limit the axial position of the first swing frame 2 on the output shaft of the first motor 11.

[0043] Further, a first limiting structure is arranged between the first motor 11 and the first swing frame 2, and the first limiting structure can limit the angle of the forward and backward swing of the first swing frame 2.

[0044] Specifically, the first limiting structure comprises a first limiting shaft 13, the first limiting shaft 13 is fixedly arranged on the first motor 11, and a first limiting arc-shaped groove 22 is formed in the side of the first swing frame 2 facing the first motor 11, and the first limiting shaft 13 is arranged in the first limiting arc-shaped groove 22. Specifically, the central angle of the first limiting arc-shaped groove 22 is consistent with the angle range of the forward and backward swing of the human shoulder, and the first limiting shaft 13 and the first limiting arc-shaped groove 22 are matched to limit the swing range of the shoulder structure in the forward and backward direction, so that the human structure can be accurately simulated.

[0045] Further, the second driving assembly comprises a second motor 3, an output shaft of the second motor 3 is rotatably connected with the first swing frame 2 through the second swing frame 4, and the output shaft of the second motor 3 is fixedly connected with the second swing frame 4. Specifically, in the embodiment, the second motor 3 is a double-head motor, the second motor 3 is connected with the second swing frame 4 through a key, and the second swing frame 4 is driven to rotate relative to the first swing frame 2 by the second motor 3, so as to simulate abduction and adduction swing of the shoulder structure.

[0046] Further, a first bearing 23 is arranged in a through hole through which the output shaft of the second motor 3 penetrates the first swing frame 2, and the output shaft of the second motor 3 is fixedly penetrated in the first bearing 23. By arranging the first bearing 23, the smoothness of rotation of the output shaft of the second motor 3 can be ensured. An axial retaining ring 24 is arranged on the output shaft of the second motor 3, a hole retaining ring 25 is arranged in the through hole, and the bearing is located between the axial retaining ring 24 and the hole retaining ring 25, so as to define the installation position of the bearing. An installation end cover 26 is arranged at the end of the output shaft of the second motor 3, the installation end cover 26 is fixedly connected with the first swing frame 2, and plays a role of limiting the position of the shaft end.

[0047] Further, a second limiting structure is arranged between the second swing frame 4 and the first swing frame 2, the second limiting structure comprises a second limiting shaft 41 fixedly arranged on one side of the second swing frame 4, a second limiting arc-shaped groove 27 is arranged on the first swing frame 2, and the second limiting shaft 41 penetrates the second limiting arc-shaped groove 27. Specifically, the central angle of the second limiting arc-shaped groove 27 is consistent with the angle range of abduction and adduction of the human shoulder, and the second limiting shaft 41 and the second limiting arc-shaped groove 27 are used to limit the angle range of abduction and adduction of the shoulder in the left-right direction.

[0048] Further, the third driving assembly 5 comprises a third motor 51 fixedly arranged on the second swing frame 4, and an output shaft of the third motor 51 is fixedly connected with the rotating shaft 6 through the second swing frame 4. Specifically, the third motor 51 is connected with the rotating shaft 6 through a key, and the rotating shaft 6 is driven to rotate by the third motor 51, so as to simulate internal rotation and external rotation of the shoulder structure of the human body.

[0049] Further, the third limiting structure is arranged between the rotating shaft 6 and the second swing frame 4, and the third limiting structure comprises a first limiting piece 42, a second limiting piece 43 and a third limiting piece 63, the first limiting piece 42 and the second limiting piece 43 are fixedly arranged on the side of the second swing frame 4 away from the third motor 51, the rotating shaft 6 is located between the first limiting piece 42 and the second limiting piece 43, and the third limiting piece 63 is arranged on the rotating shaft 6 and can abut against the first limiting piece 42 or the second limiting piece 43 under the driving of the rotating shaft 6. Specifically, the interval angle between the first limiting piece 42 and the second limiting piece 43 is equal to the maximum rotation angle of the human shoulder in internal rotation and external rotation. Through the cooperation between the third limiting piece 63 and the first limiting piece 42 and the second limiting piece 43, the internal rotation and external rotation angles of the shoulder structure can be limited, so as to simulate the movement of the shoulder structure of the human body.

[0050] Further, the vehicle collision shoulder structure further comprises a support 61, the support 61 is provided with a positioning hole, the support 61 is fixedly connected with the second swing frame 4, the rotating shaft 6 is arranged in the positioning hole and extends out of the positioning hole. Specifically, a second bearing 62 is arranged in the positioning hole, and the rotating shaft 6 passes through the second bearing 62. The second bearing 62 can ensure the stability of the rotation of the rotating shaft 6. The support 61 is fixedly connected with the second swing frame 4 through bolts, so that the rotating shaft 6 can be prevented from shaking in the circumferential direction.

[0051] Further, a through hole is arranged in the lower segment of the rotating shaft 6, which is used for connecting with the upper arm part of the dummy. The rotating shaft 6 is connected with the upper limb of the vehicle collision test dummy, as shown in Figure 7 The vehicle collision shoulder structure mainly comprises a shoulder structure assembly, an upper arm structure assembly I, a forearm structure assembly II and a hand structure assembly III, and the overall structure of the upper limb of the dummy can move in three directions through the movement of the shoulder structure.

[0052] The vehicle collision shoulder structure has the following advantages:

[0053] 1. The vehicle collision shoulder structure can provide active power for the movement of the upper limb of the dummy in the vehicle collision environment, and can simulate the movement of the upper limb of the driver in the real driving environment through the cooperation of the movement of the elbow joint and the hand, including the operation of the steering wheel by the left hand of the driver, the operation of the operating rod by the right hand of the driver, the lane change control of the vehicle, the emergency steering wheel operation of the upper limb of the driver in the face of different collision conditions, etc.

[0054] 2. The strength can be adjusted within a suitable range to resist lateral movement and keep the steering wheel.

[0055] 3. By replacing the damping piece 12, the reaction sensitivity of the upper limb of different drivers can be effectively simulated.

[0056] Obviously, the above embodiments of the present application are merely example for clearly explaining the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A shoulder structure for a vehicle collision, characterized by, The utility model relates to a kind of collision dummy, including: First drive assembly (1), which is provided on the crash test dummy; First swing frame (2), the first drive assembly (1) is drivingly connected with the first swing frame (2), and the first drive assembly (1) can drive the first swing frame (2) to swing back and forth; Second drive assembly, which is provided on the first swing frame (2); Second swing frame (4), the second drive assembly is drivingly connected with the second swing frame (4), and the second drive assembly can drive the second swing frame (4) to swing outward and inward in the left-right direction; Third drive assembly (5), which is provided on the second swing frame (4); Rotary shaft (6), the third drive assembly (5) is drivingly connected with the rotary shaft (6), and the third drive assembly (5) can drive the rotary shaft (6) to rotate; The third drive assembly (5) includes a third motor (51), which is provided on the second swing frame (4), and the output shaft of the third motor (51) is fixedly connected with the rotary shaft (6) through the second swing frame (4); A third limiting structure is provided between the rotary shaft (6) and the second swing frame (4), the third limiting structure includes a first limiting member (42), a second limiting member (43) and a third limiting member (63), the first limiting member (42) and the second limiting member (43) are provided on the side of the second swing frame (4) away from the third motor (51), the rotary shaft (6) is located between the first limiting member (42) and the second limiting member (43), and the third limiting member (63) is provided on the rotary shaft (6), the third limiting member (63) can abut against the first limiting member (42) or the second limiting member (43) under the driving of the rotary shaft (6); The third drive assembly (5) further includes a bracket (61), the bracket (61) is fixedly connected with the second swing frame (4), and the rotary shaft (6) is arranged in the positioning hole.

2. The vehicle collision shoulder structure according to claim 1, characterized by The first drive assembly (1) includes a first motor (11) fixedly provided on the crash test dummy, a first mounting hole is provided on the first swing frame (2), the output shaft of the first motor (11) is arranged in the first swing frame (2) through the first mounting hole, a damping member (12) is provided in the first mounting hole, one end of the damping member (12) is connected with the output shaft of the first motor (11), and the other end of the damping member (12) is connected with the first swing frame (2).

3. The vehicle collision shoulder structure according to claim 2, characterized by It further includes a fixed end cover (21), which is fixedly sleeved on the end of the output shaft of the first motor (11) extending relative to the first swing frame (2).

4. The vehicle collision shoulder structure according to claim 2, characterized by The first motor (11) is provided with a first limiting structure between the first swing frame (2), which can limit the angle of the first swing frame (2) swinging forward and backward.

5. The vehicle collision shoulder structure according to claim 4, characterized by The first limiting structure comprises a first limiting shaft (13), the first limiting shaft (13) is fixedly arranged on the first motor (11), and the side of the first swing frame (2) facing the first motor (11) is provided with a first limiting arc-shaped groove (22), and the first limiting shaft (13) is arranged in the first limiting arc-shaped groove (22).

6. The vehicle collision shoulder structure according to claim 1, characterized by The second driving assembly comprises a second motor (3), the output shaft of the second motor (3) is rotatably connected with the first swing frame (2) through the second swing frame (4), and the output shaft of the second motor (3) is fixedly connected with the second swing frame (4).

7. The vehicle collision shoulder structure according to claim 6, characterized by The second swing frame (4) is provided with a second limiting structure between the first swing frame (2), the second limiting structure comprises a second limiting shaft (41), the second limiting shaft (41) is arranged on one side of the second swing frame (4), the first swing frame (2) is provided with a second limiting arc-shaped groove (27), and the second limiting shaft (41) is arranged in the second limiting arc-shaped groove (27).

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