CN211167071U

CN211167071U - Self-adaptive energy-absorbing type automobile steering wheel

Info

Publication number: CN211167071U
Application number: CN201922034218.XU
Authority: CN
Inventors: 高玲娣; 相艳; 潘宇; 潘燕鸣
Original assignee: Zhejiang Fanlong Auto Parts Co ltd
Current assignee: Zhejiang Fanlong Auto Parts Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-04
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a self-adaptive energy-absorbing type automobile steering wheel, which relates to the technical field of automobile steering wheels, and is provided with a self-adaptive energy-absorbing mechanism, a steering wheel component and a power-assisted steering machine connecting rod, wherein a driven end at the top of the self-adaptive energy-absorbing mechanism is fixedly connected with a driven end at the bottom of the steering wheel component and a driven end at the bottom of the self-adaptive energy-absorbing mechanism are fixedly connected with a driven end at the top of the power-assisted steering machine connecting rod, the self-adaptive energy-absorbing mechanism is provided with a primary energy-absorbing structure and a secondary energy-absorbing structure, when a vehicle collides with an external obstacle, a driver can effectively protect the chest and the belly of the driver due to the existence of inertia and the collision of the steering wheel, thereby further avoiding the driver from causing additional damage, the safety factor of the travelling crane is improved, and the practicability is improved.

Description

Self-adaptive energy-absorbing type automobile steering wheel

Technical Field

The utility model relates to an automobile steering wheel technical field specifically is an adaptive energy-absorbing formula automobile steering wheel.

Background

The steering wheel is a wheel-shaped device for controlling the driving direction of the automobile, and has the functions of converting the force applied to the edge of the steering wheel by a driver into torque and transmitting the torque to a steering shaft, the original automobile is controlled by a rudder, and the violent vibration generated in the driving of the automobile is transmitted to the driver, so that the difficulty of controlling the direction is increased.

However, the steering wheel used in the existing automobile is not only complex in structure, but also single in function, when the automobile collides with an external obstacle or turns over, a huge impact force is generated due to the existence of inertia, and the impact force generated by the steering wheel directly acts on the abdomen and the chest of a driver, so that the driver is injured additionally.

In summary, we propose a self-adaptive energy-absorbing steering wheel for an automobile.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a self-adaptation energy-absorbing formula car steering wheel has solved the steering wheel that the car used, and is structurally not only complicated, and is comparatively single in the function moreover, when the car bumps with external barrier or takes place to turn on one's side, can produce huge impact force because of inertial existence, and the produced impact force direct action of steering wheel is at driver's belly and chest, causes the problem of driver's extra injury.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a self-adaptation energy-absorbing formula car steering wheel, includes self-adaptation energy-absorbing mechanism, steering wheel subassembly and power assisted steering machine connecting rod, self-adaptation energy-absorbing mechanism and steering wheel subassembly form the linkage that concatenates in proper order according to from last to lower order and connect, be fixed connection between the driven end of self-adaptation energy-absorbing mechanism top and the drive end of steering wheel subassembly bottom and the driven end at power assisted steering machine connecting rod top.

The self-adaptive energy absorption mechanism comprises a shaft lever made of metal materials, a sliding type shaft sleeve is sleeved at the position of the shaft lever close to the bottom driving end, a telescopic energy dissipation spring is movably sleeved at the position of the outer section of the shaft lever, which is positioned above the sliding type shaft sleeve, a fixed shaft sleeve is fixedly sleeved and mounted at the position of the outer section of the shaft lever and above the energy dissipation spring, a mounting disc assembly is connected to the outer section of the shaft at a location above the fixed sleeve by a bearing, the central position of the top end surface of the mounting disc component is fixedly connected with the bottom end of a connecting cap, the top end surface of the connecting cap is fixedly connected with the bottom end surface of a secondary buffer component, and after the driven end of the shaft rod penetrates through the mounting disc assembly, the driven end of the shaft rod sequentially penetrates through the connecting cap and the secondary buffer assembly, and two groups of energy-absorbing frames are symmetrically mounted between the sliding type shaft sleeve and the fixed type shaft sleeve.

Preferably, a steering wheel assembly connecting hole is fixedly formed in one side face of the driven end at the top of the shaft rod in a penetrating mode, a power steering gear connecting rod connecting hole is fixedly formed in the side wall at the bottom of the sliding type shaft sleeve in a penetrating mode, and energy-absorbing frame connecting holes are fixedly formed in the middle positions of the side wall at the top of the sliding type shaft sleeve and the side wall of the fixed type shaft sleeve in a penetrating mode.

Preferably, the two groups of energy-absorbing frames are members with the same structure and size, each energy-absorbing frame comprises two first laths and two second laths, the two first laths and the two second laths are arranged oppositely, the heads and the tails of the first laths and the tails of the second laths form a rotatable connecting structure through a pin shaft, the two first laths and the two second laths form a diamond structure with a changeable shape, and two corners of the first laths connected with the second laths are respectively and correspondingly connected with the sliding type shaft sleeve and the fixed type shaft sleeve in a rotating manner.

Preferably, the mounting disc assembly comprises a bearing disc body with a circular structure, a plurality of mounting through holes distributed at equal intervals are fixedly formed in the inner portion of the outermost side edge of the bearing disc body, weight-reducing slotted holes are formed in the inner portion of the bearing disc body and in positions located on the inner sides of the mounting through holes, and a shaft rod through hole is fixedly formed in the center of the bearing disc body in a penetrating mode.

Preferably, the secondary buffer assembly comprises a transition cylinder body fixedly connected with the outer side of the top of the shaft rod in series, the transition cylinder body is of a hollow structure and is set to be a stretching cavity, a telescopic flat spring is fixedly arranged in the stretching cavity, a limiting disc body is fixedly arranged in the transition cylinder body and above the stretching cavity, a sealing cover plate is fixedly connected to the end face of the top of the transition cylinder body, and shaft rod limiting through holes are fixedly formed in the centers of the limiting disc body and the sealing cover plate.

Preferably, the driven end of the top of the shaft rod sequentially penetrates through the transition cylinder, the flat spring and the two shaft rod limiting through holes and extends to the upper part of the sealing cover plate, and the shaft rod and the limiting disc body are fixedly sleeved.

Preferably, the steering wheel assembly comprises a holding disk body with an annular structure, an airbag box is fixedly arranged at the center of the holding disk body, a plurality of connecting rods are jointly connected between the end face of the inner side of the holding disk body and the side wall of the airbag box, and a shaft barrel is fixedly connected to the end face of the bottom of the airbag box.

The utility model also discloses an operating method of self-adaptation energy-absorbing formula car steering wheel, including following step:

s1, assembling: firstly, before a collision test is carried out, the whole adaptive energy absorption mechanism needs to be installed on a steering wheel assembly, and during installation, a bottom driving end of the steering wheel assembly needs to be fixedly connected with a top driven end of the adaptive energy absorption mechanism;

s2, mounting to a vehicle to be tested: in step S1, after the adaptive energy absorbing mechanism and the steering wheel assembly are integrally mounted, the adaptive energy absorbing mechanism and the steering wheel assembly are integrally taken to a driving position inside the vehicle to be tested and mounted, and during mounting, the bottom driving end of the adaptive energy absorbing mechanism needs to be fixedly connected to the driven end of the power steering gear connecting rod of the vehicle to be tested;

s3, dummy placement: placing a test dummy at the driving position of the vehicle to be tested in the step S2, wherein detection instruments for impact force are required to be installed on the abdomen and the chest of the dummy;

s4, performing a collision test: fixing the vehicle to be tested on the pulley by using the pulley for the collision test, and driving the vehicle to be tested to collide with the barrier by using the pulley;

s5, testing energy absorption effect: when the vehicle to be tested collides with the obstacle in step S4, the method includes the following two stages:

A. a first-stage energy absorption stage: when the head of an automobile collides with an obstacle, impact force can be directly applied to a power-assisted steering machine connecting rod, then the power-assisted steering machine connecting rod transmits the impact force to a sliding type shaft sleeve, and the sliding type shaft sleeve can move along the axial direction of a shaft rod, so that the sliding type shaft sleeve can directly transmit the impact force to an energy dissipation spring to enable the energy dissipation spring to contract, the contraction of the energy dissipation spring can directly cause the distance between the sliding type shaft sleeve and a fixed type shaft sleeve to be shortened, and a certain energy absorption effect is achieved;

B. a secondary energy absorption stage: after the first-stage energy absorption stage of the step A, the rest impact force can be transmitted to the interior of the secondary buffer assembly along the shaft rod, and the secondary energy absorption effect is achieved through the energy absorption treatment of the flat spring arranged in the secondary buffer assembly and the limiting effect of the limiting disc body;

s6, data recording: and S5, transmitting a small part of impact force to the steering wheel assembly, and recording the small part of impact force carried by the steering wheel assembly in combination with data given by an impact force detection instrument arranged on the dummy when the dummy collides with the steering wheel assembly under the action of inertia.

Advantageous effects

The utility model provides a self-adaptation energy-absorbing formula car steering wheel. Compared with the prior art, the method has the following beneficial effects:

1. the self-adaptive energy-absorbing type automobile steering wheel is provided with a self-adaptive energy-absorbing mechanism, a steering wheel assembly and a power-assisted steering machine connecting rod, wherein the power-assisted steering machine connecting rod, the self-adaptive energy-absorbing mechanism and the steering wheel assembly are sequentially connected in a linkage manner from top to bottom, and a driven end at the top of the self-adaptive energy-absorbing mechanism, a driving end at the bottom of the steering wheel assembly and a driving end at the bottom of the self-adaptive energy-absorbing mechanism and a driven end at the top of the power-assisted steering machine connecting rod are fixedly connected, wherein the self-adaptive energy-absorbing mechanism is provided with a primary energy-absorbing structure and a secondary energy-absorbing structure, when a vehicle collides with an external obstacle, a driver collides with the steering wheel due to inertia, the chest and the belly of the driver can be effectively protected due to the primary energy-absorbing structure and the secondary energy-absorbing, the safety factor of the travelling crane is improved, and the practicability is improved.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the present invention;

FIG. 3 is an exploded view of the adaptive energy absorption mechanism of the present invention;

FIG. 4 is a schematic view of a combined structure of the adaptive energy absorption mechanism of the present invention;

FIG. 5 is a schematic structural view of an energy absorbing frame according to the present invention;

fig. 6 is a schematic structural view of the mounting plate assembly of the present invention;

FIG. 7 is an exploded view of the secondary cushion of the present invention;

fig. 8 is a schematic view of the connection structure of the secondary buffer assembly and the shaft of the present invention;

fig. 9 is a top view of the steering wheel assembly of the present invention;

fig. 10 is a front view of the steering wheel assembly of the present invention.

In the figure: 1. a self-adaptive energy absorption mechanism; 11. a shaft lever; 12. a sliding type shaft sleeve; 13. a connecting hole of a connecting rod of the power steering gear; 14. connecting holes of the energy-absorbing frame; 15. a steering wheel assembly attachment hole; 16. an energy dissipation spring; 17. a fixed shaft sleeve; 18. an energy absorbing frame; 181. a first panel; 182. a second panel; 183. a pin shaft; 19. a mounting plate assembly; 191. a load-bearing tray body; 192. a weight-reducing slotted hole; 193. mounting a through hole; 194. the shaft lever penetrates through the through hole; 110. a connecting cap; 111. a secondary buffer assembly; 1111. a transition cylinder; 1112. expanding a cavity; 1113. a flat spring; 1114. a limiting disc body; 1115. sealing the cover plate; 1116. a shaft lever limiting through hole; 2. a steering wheel assembly; 21. holding the tray body; 22. an airbag case; 23. connecting the rods; 24. a shaft cylinder; 3. a power steering linkage.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a self-adaptation energy-absorbing formula car steering wheel, including self-adaptation energy-absorbing mechanism 1, steering wheel subassembly 2 and power assisted steering machine connecting rod 3, self-adaptation energy-absorbing mechanism 1 and steering wheel subassembly 2 form the linkage connection that concatenates in proper order from last to down, be fixed connection between the driven end of self-adaptation energy-absorbing mechanism 1 top and the drive end of steering wheel subassembly 2 bottom and the drive end of self-adaptation energy-absorbing mechanism 1 bottom and the driven end at power assisted steering machine connecting rod 3 top.

Referring to fig. 3-4, the adaptive energy absorbing mechanism 1 includes a shaft rod 11 made of metal, a sliding shaft sleeve 12 is sleeved on the position of the shaft rod 11 near the bottom driving end, a telescopic energy dissipation spring 16 is movably sleeved on the position of the outer section of the shaft rod 11 above the sliding shaft sleeve 12, a fixed shaft sleeve 17 is fixedly sleeved on the position of the outer section of the shaft rod 11 above the energy dissipation spring 16, a mounting plate assembly 19 is connected to the position of the outer section of the shaft rod 11 above the fixed shaft sleeve 17 through a bearing, the center position of the top end surface of the mounting plate assembly 19 is fixedly connected to the bottom end surface of a connecting cap 110, the top end surface of the connecting cap 110 is fixedly connected to the bottom end surface of a secondary buffer assembly 111, and the driven end of the shaft rod 11 penetrates through the mounting plate assembly 19 and then sequentially penetrates through the connecting cap 110, two groups of energy-absorbing frames 18 are symmetrically arranged between the sliding type shaft sleeve 12 and the fixed type shaft sleeve 17, a steering wheel assembly connecting hole 15 is fixedly formed in one side face of the driven end at the top of the shaft rod 11 in a penetrating mode, a power-assisted steering machine connecting rod connecting hole 13 is fixedly formed in the side wall at the bottom of the sliding type shaft sleeve 12 in a penetrating mode, and energy-absorbing frame connecting holes 14 are fixedly formed in the middle positions of the side wall at the top of the sliding type shaft sleeve 12 and the.

Referring to fig. 5, the two energy absorbing frames 18 are members with the same structure and size, the energy absorbing frame 18 includes two first laths 181 and two second laths 182, the two first laths 181 and the two second laths 182 are disposed opposite to each other, the heads and the tails of the first laths 181 and the tails of the second laths 182 form a rotatable connection structure through pins 183, the two first laths 181 and the two second laths 182 form a diamond structure with a changeable shape, and two corners of the first laths 181 connected with the second laths 182 are respectively and correspondingly connected with the sliding type shaft sleeve 12 and the fixed type shaft sleeve 17 in a rotatable manner.

Referring to fig. 6, the mounting plate assembly 19 includes a bearing plate body 191 having a circular structure, a plurality of mounting through holes 193 are fixedly formed in the outermost edge of the bearing plate body 191 and are equidistantly distributed, weight-reducing slots 192 are formed in the inner side of the bearing plate body 191 and are located inside the mounting through holes 193, and a shaft rod penetrating through hole 194 is fixedly formed in the center of the bearing plate body 191 in a penetrating manner.

Referring to fig. 7-8, the secondary buffer assembly 111 includes a transition cylinder 1111 fixedly connected in series to the outer side of the top of the shaft 11, the transition cylinder 1111 is hollow and is configured as an expansion chamber 1112, the expansion chamber 1112 is fixedly provided with a retractable flat spring 1113, the transition cylinder 1111 is fixedly provided with a limit disc 1114 inside and above the expansion chamber 1112, the top end surface of the transition cylinder 1111 is fixedly connected with a sealing cover plate 1115, the centers of the limit disc 1114 and the sealing cover plate 1115 are both fixedly provided with a shaft limit through hole 1116, the top driven end of the shaft 11 sequentially penetrates through the transition cylinder 1111, the flat spring 1113, the two shaft limit through holes 1116 and extends to the upper side of the sealing cover plate 1115, and the shaft 11 and the limit disc 1114 are fixedly connected in a sleeved manner.

Referring to fig. 9-10, the steering wheel assembly 2 includes a holding tray 21 having a ring structure, an airbag box 22 is fixedly disposed at a central position of the holding tray 21, a plurality of connecting rods 23 are commonly connected between an inner side end surface of the holding tray 21 and a side wall of the airbag box 22, and a shaft tube 24 is fixedly connected to a bottom end surface of the airbag box 22.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The self-adaptive energy-absorbing automobile steering wheel comprises a self-adaptive energy-absorbing mechanism (1), a steering wheel assembly (2) and a power-assisted steering machine connecting rod (3), and is characterized in that the power-assisted steering machine connecting rod (3), the self-adaptive energy-absorbing mechanism (1) and the steering wheel assembly (2) form linkage connection which is sequentially connected in series according to the sequence from top to bottom, and a driven end at the top of the self-adaptive energy-absorbing mechanism (1) is fixedly connected with a driving end at the bottom of the steering wheel assembly (2) and a driving end at the bottom of the self-adaptive energy-absorbing mechanism (1) and a driven end at the top of the power-assisted steering machine connecting rod (;

the self-adaptive energy absorption mechanism (1) comprises a metal shaft rod (11), a sliding type shaft sleeve (12) is sleeved at the position, close to a bottom driving end, of the shaft rod (11), a telescopic energy dissipation spring (16) is movably sleeved at the position, located above the sliding type shaft sleeve (12), of an external section of the shaft rod (11), a fixed type shaft sleeve (17) is fixedly sleeved and mounted at the position, located above the energy dissipation spring (16), of the external section of the shaft rod (11), a mounting disc assembly (19) is connected at the position, located above the fixed type shaft sleeve (17), of the external section of the shaft rod (11) through a bearing, the center position of the top end face of the mounting disc assembly (19) is fixedly connected with the bottom end of a connecting cap (110), and the top end face of the connecting cap (110) is fixedly connected with the bottom end face of a, the driven end of the shaft rod (11) penetrates through the mounting disc assembly (19) and then sequentially penetrates through the connecting cap (110) and the secondary buffer assembly (111), and two groups of energy absorption frames (18) are symmetrically mounted between the sliding type shaft sleeve (12) and the fixed type shaft sleeve (17).

2. The adaptive energy-absorbing automobile steering wheel according to claim 1, wherein a steering wheel assembly connecting hole (15) is fixedly formed through one side surface of the top driven end of the shaft rod (11), a power-assisted steering gear connecting rod connecting hole (13) is fixedly formed through the bottom side wall of the sliding type shaft sleeve (12), and an energy-absorbing frame connecting hole (14) is fixedly formed through the middle position of the top side wall of the sliding type shaft sleeve (12) and the side wall of the fixed type shaft sleeve (17).

3. An adaptive energy-absorbing steering wheel according to claim 1, wherein the two groups of energy-absorbing frames (18) are members with the same structure and size, the energy-absorbing frames (18) comprise two first laths (181) and two second laths (182), the two first laths (181) and the two second laths (182) are arranged oppositely, the heads and the tails of the first laths (181) and the second laths (182) form a rotatable connection structure through a pin shaft (183), the two first laths (181) and the two second laths (182) form a rhombus structure with the shape changeable together, and two corners of the first laths (181) and the second laths (182) are respectively connected with the sliding sleeve (12) and the fixed sleeve (17) in a rotatable manner.

4. The adaptive energy-absorbing automobile steering wheel according to claim 1, wherein the mounting disc assembly (19) comprises a bearing disc body (191) with a circular structure, a plurality of mounting through holes (193) are fixedly formed in the outermost edge of the bearing disc body (191) and distributed equidistantly, weight-reducing slotted holes (192) are formed in the inner portion of the bearing disc body (191) and located on the inner side of the mounting through holes (193), and a shaft rod penetrating through hole (194) is fixedly formed in the center of the bearing disc body (191) in a penetrating manner.

5. The self-adaptive energy-absorbing automobile steering wheel according to claim 1, wherein the secondary buffer assembly (111) comprises a transition cylinder (1111) fixedly connected to the outer side of the top of the shaft rod (11) in series, the transition cylinder (1111) is hollow and is set to be an expansion chamber (1112), a telescopic flat spring (1113) is fixedly arranged inside the expansion chamber (1112), a limiting disc body (1114) is fixedly arranged inside the transition cylinder (1111) and above the expansion chamber (1112), a sealing cover plate (1115) is fixedly connected to the top end face of the transition cylinder (1111), and a shaft rod limiting through hole (1116) is fixedly formed in the centers of the limiting disc body (1114) and the sealing cover plate (1115).

6. The adaptive energy-absorbing steering wheel according to claim 5, wherein the top driven end of the shaft rod (11) sequentially penetrates through the transition cylinder (1111), the flat spring (1113) and the two shaft rod limiting through holes (1116) and extends to the upper part of the sealing cover plate (1115), and the shaft rod (11) and the limiting disc body (1114) are fixedly sleeved.

7. The adaptive energy-absorbing automobile steering wheel according to claim 1, wherein the steering wheel assembly (2) comprises a holding disk body (21) in an annular structure, an airbag box (22) is fixedly arranged at the center of the holding disk body (21), a plurality of connecting rods (23) are commonly connected between the end surface of the inner side of the holding disk body (21) and the side wall of the airbag box (22), and a shaft sleeve (24) is fixedly connected to the end surface of the bottom of the airbag box (22).