A smart car pedestrian protection safety test device

Abstract

The utility model discloses an intelligent automobile pedestrian protection safety test device, which belongs to the field of automobile technology, and includes a base, an X-axis sliding assembly is arranged on the base, a cabinet is arranged on the execution end of the X-axis sliding assembly, the cabinet can rotate on the execution end of the X-axis sliding assembly through a rotating assembly, the cabinet is connected to a linear motor retractor through a two-axis sliding assembly, a linear motor positioning assembly is arranged on the U-shaped end of the linear motor retractor, and a linear motor assembly is arranged on the linear motor positioning assembly. The utility model adopts a linear motor as a power source for a human model launching device, which can ensure to the maximum extent that the force generated by the launched human model colliding with the vehicle is consistent with the force generated when the actual vehicle collides with the pedestrian, and ensures that the tested data has reliability and accuracy.

Description

Technical Field

[0001] The utility model discloses an intelligent automobile pedestrian protection safety testing device, belonging to the technical field of automobiles. Background Art

[0002] With the rapid development of economy, there are more and more smart cars on the road and traffic accidents are also increasing. Traffic accidents involving pedestrians are one of the most serious accidents. Therefore, in the development of automobiles, we should try our best to ensure the safety of the car, not only in terms of protecting the passengers inside the car, but also in terms of protecting the pedestrians outside the car. In recent years, a large number of companies have conducted research on the shape and material selection of automobiles to ensure the safety performance of the whole vehicle and minimize the harm to pedestrians in the event of a safety accident between people and vehicles.

[0003] In order to improve the research and development efficiency of smart cars, after the engine hood and bumper of smart cars are developed, human body collision tests are carried out to detect whether the shape and material selection of the auto parts are optimal. Therefore, the present invention studies the force generated when pedestrians collide with vehicles and invents a human body model launching device.

[0004] Most of the human model launchers simulate the collision between a car and a standing pedestrian or a slowly walking pedestrian during actual driving. Since the automobile parts to be tested do not have the conditions to drive, the human model launcher usually simulates the force generated when a moving vehicle collides with a pedestrian to launch a human model to actively collide with the automobile parts, in order to detect whether the shape and material selection of the automobile parts have the best performance in terms of active and passive safety.

[0005] In the existing technology, the power source of the launch device is mostly hydraulic power and pneumatic power. The use of these two power sources will generate a large acceleration when the human model is launched. Under the action of acceleration, the force generated when the human model collides with the car parts is much greater than the force of the vehicle colliding with the pedestrian in the actual situation. Therefore, the use of hydraulic power and pneumatic power to launch the human model will cause distortion between the test data and the actual data.

[0006] In existing technologies, the launch angle of the launch device is generally fixed. However, in reality, pedestrians and vehicles collide in different directions. Therefore, if you want to maximize the active and passive safety performance of the car, you need to conduct multi-angle and all-directional tests during vehicle research and development testing. Summary of the invention

[0007] The utility model aims to solve the problem that the data tested by the existing human model transmitting device are distorted from the actual data, and proposes an intelligent automobile pedestrian protection safety testing device.

[0008] The problem to be solved by the utility model is achieved by the following technical solutions:

[0009] A smart automobile pedestrian protection safety test device comprises a base, an X-axis sliding assembly is arranged on the base, a vertical cabinet is arranged on the execution end of the X-axis sliding assembly, the vertical cabinet can rotate on the execution end of the X-axis sliding assembly through a rotating assembly, the interior of the vertical cabinet is connected to a linear motor retractor through a two-axis sliding assembly, a linear motor positioning assembly is arranged on the U-shaped end of the linear motor retractor, and a linear motor assembly is arranged on the linear motor positioning assembly.

[0010] Preferably, the X-axis sliding assembly includes X-axis slide rails and an X-axis sliding support plate symmetrically arranged on the top surface of the base near the two edges, an X-axis drive motor is arranged in the middle of the two X-axis slide rails, the spindle of the X-axis drive motor is connected to one end of the X-axis lead screw, and the other end of the X-axis lead screw is rotatably supported on the base through a support frame, an X-axis drive slider and an X-axis slide groove body that can slide along the two X-axis slide rails are provided at the bottom of the X-axis sliding support plate, and the slider is rotatably sleeved on the X-axis lead screw.

[0011] Preferably, the cabinet comprises a cabinet top plate and a cabinet bottom plate respectively connected to upper and lower ends of the cabinet support frame.

[0012] Preferably, the rotating assembly includes an externally-toothed slewing support bearing fixed on both sides to the top of the X-axis sliding support plate and the bottom of the cabinet bottom plate, respectively; a rotating motor is provided on the top of the cabinet bottom plate; a main shaft of the rotating motor passes through the cabinet bottom plate and is connected to a driving gear, and the driving gear is meshed with the externally-toothed slewing support bearing.

[0013] Preferably, the two-axis sliding assembly includes a Z-axis sliding assembly and a Y-axis sliding assembly, wherein:

[0014] The Y-axis sliding assembly includes a first Y-axis slider, a second Y-axis slider and two Y-axis slide rails respectively arranged on both sides of the linear motor retractor, the first Y-axis slider and the second Y-axis slider are respectively provided with Y-axis slide blocks which can slide along the two Y-axis slide rails on both sides of the linear motor retractor through the inner sides, the linear motor retractor is provided with a Y-axis drive motor on the side close to the first Y-axis slider, the main shaft of the Y-axis drive motor is connected to one end of the Y-axis lead screw, and the inner side of the first Y-axis slider is provided with a Y-axis drive slider which is rotatably sleeved on the Y-axis lead screw;

[0015] The Z-axis sliding assembly includes a Z-axis driving motor arranged on the top of the cabinet top plate, the main shaft of the Z-axis driving motor passes through the cabinet top plate and is connected to one end of the Z-axis lead screw, the first Y-axis slider is provided with a Z-axis driving slider, the other end of the Z-axis lead screw rotates through the Z-axis driving slider and the first Y-axis slider in sequence and is rotatably arranged on the cabinet bottom plate, two Z-axis slide rails are respectively provided on both sides of the cabinet support frame, and Z-axis slide blocks that can slide along the two Z-axis slide rails on both sides of the cabinet support frame are respectively provided on the outer sides of the first Y-axis slider and the second Y-axis slider.

[0016] Preferably, the linear motor positioning assembly includes a linear motor fixing frame rotatably arranged on both sides of the U-shaped end of the linear motor retractor through a rotating shaft, and a linear motor positioning motor connected to a main shaft and one end of the rotating shaft is arranged on the outer side of the U-shaped end of the linear motor retractor.

[0017] Preferably, the linear motor assembly includes two linear motors with the same relatively arranged structure, the two ends of the stators of the two linear motors are connected together by a second limit plate and a first limit plate, the movers of the two linear motors are connected to one end of the damper close to the second limit plate, the other end of the damper is connected to one end of the mover extension shaft, and the other end of the mover extension shaft passes through the second limit plate and extends to the outside.

[0018] The utility model has the following beneficial effects compared with the prior art:

[0019] The utility model adopts a linear motor as the power source of the human model launching device, which can ensure to the maximum extent that the force generated by the launched human model colliding with the vehicle is consistent with the force generated when the actual vehicle collides with the pedestrian, and ensures that the tested data has reliability and accuracy. The addition of a damper and a mover extension shaft can ensure that the mover generates a smaller acceleration during the propulsion process, so that the launched human model is not affected by the peak force value when colliding with vehicle parts, and the force received by the pedestrian when colliding with the vehicle is restored to the maximum extent. The added mover extension shaft can ensure that the effective distance of the human model launch is shortened, and further reduce the speed change of the mover during the propulsion process, thereby ensuring that the force generated by the collision is accurate.

[0020] The five-axis mechanical device design of the utility model can freely adjust the launch angle of the launch device, so as to obtain collision data of multiple directions of automobile parts through testing, and comprehensively analyze the safety index of active performance and passive performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an isometric view of an intelligent automobile pedestrian protection safety testing device of the utility model.

[0022] Figure 2It is an isometric view of an intelligent automobile pedestrian protection safety testing device of the utility model.

[0023] Figure 3 It is an isometric side view of an X-axis sliding support plate in an intelligent automobile pedestrian protection safety test device of the utility model.

[0024] Figure 4 The utility model is an isometric side view of a rotating assembly in an intelligent automobile pedestrian protection safety test device.

[0025] Figure 5 It is a partial isometric view of an intelligent automobile pedestrian protection safety test device of the utility model.

[0026] Figure 6 It is a partial isometric view of an intelligent automobile pedestrian protection safety test device of the utility model.

[0027] Figure 7 The utility model is an isometric view of a linear motor positioning assembly in an intelligent automobile pedestrian protection safety test device.

[0028] Among them, 1-X-axis sliding assembly, 2-base, 3-rotating assembly, 4-Y-axis sliding assembly, 5-Y-axis sliding assembly, 6-Z-axis sliding assembly, 7-cabinet, 8-linear motor positioning assembly, 9-linear motor assembly, 11-X-axis slide rail, 12-X-axis drive slider, 13-support frame, 14-X-axis lead screw, 15-X-axis slide trough body, 16-X-axis sliding support plate, 17-cabinet bottom plate, 31-rotating motor, 32-driving gear, 33-external gear slewing support bearing, 41-second Y-axis slider, 42-Y-axis lead screw, 43-first Y-axis slider Block, 44-first Y-axis slider, 45-Y-axis slide rail, 46-Y-axis drive slider, 47-Y-axis slide block, 61-Z-axis drive motor, 62-Z-axis slide rail, 63-Z-axis lead screw, 64-Z-axis slide block, 65-Z-axis drive slider, 71-cabinet bottom plate, 72-cabinet support frame, 73-cabinet top plate, 81-linear motor positioning motor, 82-linear motor fixing frame, 91-first limit plate, 92-linear motor, 93-damper, 94-movement extension shaft, 95-second limit plate, 921-stator, 922-movement. DETAILED DESCRIPTION

[0029] The following is based on the attached Figure 1-7 The utility model is further described as follows:

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1-7 As shown, the first embodiment of the utility model provides an intelligent automobile pedestrian protection safety testing device based on the prior art, including a base 2, an X-axis sliding assembly 1 is installed on the base 2, a vertical cabinet 7 is installed on the execution end of the X-axis sliding assembly 1, the vertical cabinet 7 can rotate on the execution end of the X-axis sliding assembly 1 through the rotating assembly 3, the interior of the vertical cabinet 7 is connected to the linear motor retractor 5 through the two-axis sliding assembly, the U-shaped end of the linear motor retractor 5 is installed with a linear motor positioning assembly 8, and the linear motor positioning assembly 8 is installed with a linear motor assembly 9.

[0034] The following first introduces the X-axis sliding assembly 1 and the cabinet 7. The X-axis sliding assembly 1 includes X-axis slide rails 11 and X-axis sliding support plates 16 symmetrically arranged on the top surface of the base 2 near the two edges. An X-axis driving motor 17 is installed in the middle of the two X-axis slide rails 11. The main shaft of the X-axis driving motor 17 is connected to one end of the X-axis lead screw 14. The other end of the X-axis lead screw 14 is rotatably supported on the base 2 through the support frame 13. The bottom of the X-axis sliding support plate 16 is provided with an X-axis driving slider 12 and an X-axis slide trough body 15 that can slide along the two X-axis slide rails 11. The slider 12 is rotatably sleeved on the X-axis lead screw 14. The above-mentioned cabinet 7 includes a cabinet top plate 73 and a cabinet bottom plate 71 respectively connected to the upper and lower ends of the cabinet support frame 72.

[0035] The rotating assembly 3 will be introduced below, which includes an externally-toothed slewing support bearing 33 fixed on both sides by bolts to the top of the X-axis sliding support plate 16 and the bottom of the cabinet bottom plate 71, and a rotating motor 31 is installed on the top of the cabinet bottom plate 71. The main shaft of the rotating motor 31 passes through the cabinet bottom plate 71 and is connected to the driving gear 32, and the driving gear 32 is meshed with the externally-toothed slewing support bearing 33.

[0036] The following will introduce the two-axis sliding assembly including the Z-axis sliding assembly 6 and the Y-axis sliding assembly 4, wherein:

[0037] The Y-axis sliding assembly 4 includes a first Y-axis slider 43, a second Y-axis slider 41 and two Y-axis slide rails 45 respectively installed on both sides of the linear motor retractor 5. The first Y-axis slider 43 and the second Y-axis slider 41 are respectively provided with Y-axis slide block 47 which can slide along the two Y-axis slide rails 45 on both sides of the linear motor retractor 5 through the inner side. The linear motor retractor 5 is provided with a Y-axis driving motor 44 on the side close to the first Y-axis slider 43. The main shaft of the Y-axis driving motor 44 is connected to one end of the Y-axis lead screw 42. The inner side of the first Y-axis slider 43 is provided with a Y-axis driving slider 46 which is rotatably sleeved on the Y-axis lead screw 42.

[0038] The Z-axis sliding assembly 6 includes a Z-axis driving motor 61 installed on the top of the cabinet top plate 73. The main shaft of the Z-axis driving motor 61 passes through the cabinet top plate 73 and is connected to one end of the Z-axis lead screw 63. A Z-axis driving slider 65 is provided on the first Y-axis slider 43. The other end of the Z-axis lead screw 63 rotates through the Z-axis driving slider 65 and the first Y-axis slider 43 in turn and is rotatably installed on the cabinet bottom plate 71. Two Z-axis slide rails 62 are respectively provided on both sides of the cabinet support frame 72. Z-axis slide blocks 64 that can slide along the two Z-axis slide rails 62 on both sides of the cabinet support frame 72 are respectively provided on the outer sides of the first Y-axis slider 43 and the second Y-axis slider 41.

[0039] The linear motor positioning assembly 8 and the linear motor assembly 9 will be introduced below, wherein the linear motor positioning assembly 8 includes a linear motor fixing frame 82 which is rotatably mounted on both sides of the U-shaped end of the linear motor telescope 5 through a rotating axis, and a linear motor positioning motor 81 which is connected to the main shaft and one end of the rotating axis is arranged on the outer side of the U-shaped end of the linear motor telescope 5.

[0040] The linear motor assembly 9 includes two linear motors with the same relative arrangement structure. The two ends of the stators 921 of the two linear motors 92 are connected together through the second limit plate 95 and the first limit plate 91. The movers 922 of the two linear motors 92 are connected to one end of the damper 93 near the second limit plate 95 to reduce the acceleration generated by the movers 92 during the propulsion process. The other end of the damper 93 is connected to one end of the mover extension shaft 94, and the other end of the mover extension shaft 94 passes through the second limit plate 95 and extends to the outside, so that the effective distance of its launch is shortened, further reducing the speed change of the mover 922 during the propulsion process.

[0041] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. An intelligent vehicle pedestrian protection safety test device, characterized in that: The invention comprises a base (2), an X-axis sliding assembly (1) being arranged on the base (2), a vertical cabinet (7) being arranged on the execution end of the X-axis sliding assembly (1), the vertical cabinet (7) being rotatable on the execution end of the X-axis sliding assembly (1) via a rotating assembly (3), the interior of the vertical cabinet (7) being connected to a linear motor retractor (5) via a two-axis sliding assembly, a linear motor positioning assembly (8) being arranged on the U-shaped end of the linear motor retractor (5), and a linear motor assembly (9) being arranged on the linear motor positioning assembly (8).

2. The intelligent vehicle pedestrian protection safety test device according to claim 1, characterized in that: The X-axis sliding assembly (1) comprises X-axis slide rails (11) and an X-axis sliding support plate (16) symmetrically arranged on the top surface of the base (2) near two edges, an X-axis driving motor (17) is arranged in the middle of the two X-axis slide rails (11), the main shaft of the X-axis driving motor (17) is connected to one end of an X-axis lead screw (14), and the other end of the X-axis lead screw (14) is rotatably supported on the base (2) through a support frame (13), and an X-axis driving slider (12) and an X-axis slide groove body (15) capable of sliding along the two X-axis slide rails (11) are arranged at the bottom of the X-axis sliding support plate (16), and the slider (12) is rotatably sleeved on the X-axis lead screw (14).

3. The intelligent vehicle pedestrian protection safety test device according to claim 2, characterized in that: The cabinet (7) comprises a cabinet top plate (73) and a cabinet bottom plate (71) respectively connected to upper and lower ends of a cabinet support frame (72).

4. The intelligent vehicle pedestrian protection safety test device according to claim 3, characterized in that: The rotating assembly (3) comprises an externally toothed slewing support bearing (33) fixed at two sides to the top of the X-axis sliding support plate (16) and the bottom of the cabinet bottom plate (71), respectively; a rotating motor (31) is arranged at the top of the cabinet bottom plate (71); a main shaft of the rotating motor (31) passes through the cabinet bottom plate (71) and is connected to a driving gear (32); and the driving gear (32) is meshed with the externally toothed slewing support bearing (33).

5. The intelligent vehicle pedestrian protection safety test device according to claim 4, characterized in that: The two-axis sliding assembly comprises a Z-axis sliding assembly (6) and a Y-axis sliding assembly (4), wherein: The Y-axis sliding assembly (4) comprises a first Y-axis slider (43), a second Y-axis slider (41) and two Y-axis slide rails (45) respectively arranged on both sides of the linear motor retractor (5); the first Y-axis slider (43) and the second Y-axis slider (41) are respectively provided with Y-axis slide block (47) on the inner side which can slide along the two Y-axis slide rails (45) on both sides of the linear motor retractor (5); a Y-axis driving motor (44) is arranged on the side of the linear motor retractor (5) close to the first Y-axis slider (43); the main shaft of the Y-axis driving motor (44) is connected to one end of the Y-axis lead screw (42); and a Y-axis driving slider (46) rotatably sleeved on the Y-axis lead screw (42) is arranged on the inner side of the first Y-axis slider (43); The Z-axis sliding assembly (6) comprises a Z-axis driving motor (61) arranged on the top of the cabinet top plate (73); the main shaft of the Z-axis driving motor (61) passes through the cabinet top plate (73) and is connected to one end of the Z-axis lead screw (63); the first Y-axis slider (43) is provided with a Z-axis driving slider (65); the other end of the Z-axis lead screw (63) rotates through the Z-axis driving slider (65) and the first Y-axis slider (43) in sequence and is rotated on the cabinet bottom plate (71); two Z-axis slide rails (62) are respectively arranged on both sides of the cabinet support frame (72); and Z-axis slide blocks (64) capable of sliding along the two Z-axis slide rails (62) on both sides of the cabinet support frame (72) are respectively arranged on the outer sides of the first Y-axis slider (43) and the second Y-axis slider (41).

6. The intelligent vehicle pedestrian protection safety test device according to claim 5, characterized in that: The linear motor positioning assembly (8) comprises a linear motor fixing frame (82) which is rotatably arranged on both sides of the U-shaped end of the linear motor retractor (5) via a rotating shaft, and a linear motor positioning motor (81) whose main shaft is connected to one end of the rotating shaft is arranged outside the U-shaped end of the linear motor retractor (5).

7. The intelligent vehicle pedestrian protection safety test device according to claim 6, characterized in that: The linear motor assembly (9) comprises two linear motors (92) with the same structure arranged relatively to each other, the two ends of the stators (921) of the two linear motors (92) being connected together via a second limiting plate (95) and a first limiting plate (91), the movers (922) of the two linear motors (92) being connected to one end of a damper (93) close to the second limiting plate (95), the other end of the damper (93) being connected to one end of a mover extension shaft (94), and the other end of the mover extension shaft (94) passing through the second limiting plate (95) and extending to the outside.

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