阅读说明：本技术 设侧碰吸能结构的汽车前轴 (Automobile front axle with side impact energy-absorbing structure ) 是由 不公告发明人 于 2017-05-17 设计创作，主要内容包括：本发明涉及汽车前轴。一种设侧碰吸能结构的汽车前轴,包括前轴,所述前轴包括横杆和位于横杆两端的两个悬臂,所述滑杆的左右两端各设有一个侧碰吸能结构,所述侧碰吸能结构包括设置在横杆内的沿左右方向延伸的气缸、密封滑动连接在气缸一端内的压缩活塞和驱动压缩活塞的驱动架,所述横杆设有沿左右方向延伸的长条形避让孔,所述驱动架穿设在所述长条形避让孔内,所述气缸的另一端设有喷射孔,所述喷射孔内连接有当所述气缸内的气压上升到设定值时被气缸内的气体压出的密封头。本发明提供了一种产生侧碰时无须车架溃缩变形即可吸收侧碰能量的设侧碰吸能结构的汽车前轴,解决了现有的汽车侧碰时需要车身溃缩吸能而导致的安全性差的问题。(The invention relates to an automobile front axle. The utility model provides an establish side and bump automobile front axle of energy-absorbing structure, includes the front axle, the front axle includes the horizontal pole and is located two cantilevers at horizontal pole both ends, both ends respectively are equipped with a side and bump the energy-absorbing structure about the slide bar, the side is bumped the energy-absorbing structure and is included setting up the cylinder that the direction extends about the edge in the horizontal pole, sealed sliding connection compression piston in cylinder one end and drive compression piston's the carriage, the horizontal pole is equipped with the rectangular shape of extending about the edge and dodges the hole, the carriage is worn to establish rectangular shape dodges downtheholely, the other end of cylinder is equipped with the jet orifice, be connected with in the jet orifice and work as the sealed head of the gaseous extrusion in the cylinder when atmospheric pressure in the cylinder rises. The invention provides an automobile front axle with a side impact energy-absorbing structure, which can absorb side impact energy without collapsing and deforming a frame when side impact occurs, and solves the problem of poor safety caused by the fact that an automobile body needs to collapse and absorb energy when the existing automobile is subjected to side impact.)

1. The utility model provides an establish side and bump automobile front axle of energy-absorbing structure, includes the front axle, the front axle includes the horizontal pole and is located two cantilevers at horizontal pole both ends, a serial communication port, both ends respectively are equipped with a side and bump the energy-absorbing structure about the horizontal pole, the side is bumped the energy-absorbing structure and is included setting up the drive rack of cylinder, sealed sliding connection compression piston and drive compression piston in cylinder one end along controlling the direction extension in the horizontal pole, the horizontal pole is equipped with and dodges the hole along controlling the rectangular shape of direction extension, the drive rack is worn to establish rectangular shape dodges downtheholely, the other end of cylinder is equipped with the jet orifice, be connected with in the jet orifice and work as the sealed head of the gaseous extrusion in the cylinder when atmospheric pressure rises to the setting value.

2. The automobile front axle with the side impact energy absorption structure according to claim 1, further comprising a first friction energy dissipation cylinder extending in the left-right direction, wherein a first friction layer is arranged on the inner surface of the first friction energy dissipation cylinder, the elongated avoidance hole is formed in the first friction energy dissipation cylinder, the driving frame comprises a connecting frame, a first connecting rod connected to one side of the connecting frame and a second connecting rod connected to the other side of the connecting frame, the connecting frame is provided with a second friction layer, the connecting frame is connected to the first friction pin energy cylinder through the second friction layer and the first friction layer in a sliding mode, and the second connecting rod is connected to the compression piston.

3. The automobile front axle with the side impact energy absorption structure according to claim 2, wherein the side impact energy absorption structure further comprises an energy absorption piston and a second friction energy dissipation cylinder extending in the left-right direction, a third friction layer is arranged on the inner surface of the second friction energy dissipation cylinder, a fourth friction layer is arranged on the peripheral surface of the energy absorption piston, the energy absorption piston is connected with the third friction layer in the second friction energy dissipation cylinder through the fourth friction layer in a sliding mode, and the energy absorption piston is connected with the connecting frame through a third connecting rod.

4. The automobile front axle with the side impact energy absorption structure as claimed in claim 3, wherein the air cylinder surrounds the outside of the second friction energy dissipation cylinder.

5. The automobile front axle with the side impact energy absorption structure as claimed in claim 4, wherein a tube body is connected in the cross bar in a sliding and sealing manner, an inner space of the tube body forms two second friction energy dissipation cylinders, and two cylinders are enclosed between two ends of the tube body and the cross bar.

6. The automobile front axle with the side impact energy absorption structure as claimed in claim 1, 2, 3, 4 or 5, wherein a constant pressure ring and an annular barb for preventing the sealing head from being inserted into the cylinder are arranged on the outer peripheral surface of the sealing head, a cylindrical section is arranged between the constant pressure ring and the annular barb, the sealing head is connected with the injection hole in a sealing mode through the cylindrical section, and the end face, facing one end of the sealing section, of the constant pressure ring is a conical surface.

7. The automobile front axle with the side impact energy absorption structure as claimed in claim 6, wherein the sealing head comprises an inner circular tube and an outer circular tube sleeved outside the inner circular tube, the outer end of the inner circular tube is provided with a bottom wall and is sealed by the bottom wall, the inner end of the inner circular tube and the inner end of the outer circular tube are integrally formed together to form a deformation avoiding groove between the inner circular tube and the outer circular tube, and the compression ring and the annular barb are arranged on the outer peripheral surface of the outer circular tube.

8. The automobile front axle with the side impact energy absorption structure as claimed in claim 1, 2, 3, 4 or 5, wherein the sealing head comprises an inner circular tube, the outer end of the inner circular tube is provided with a bottom wall and is sealed by the bottom wall, the inner circumferential surface of the inner circular tube is provided with a fan blade for guiding the sealing head to rotate, the cross bar is further rotatably connected with a connecting sleeve, the connecting sleeve is connected with an annular blade, a limiting part is formed between the annular blade and the connecting sleeve, and the blade is provided with an annular cutting edge for cutting the bottom wall from the inner circular tube.

Technical Field

The invention relates to an automobile front axle, in particular to an automobile front axle with a side impact energy absorption structure.

Background

The front axle of the automobile is used for mounting front wheels and supporting the weight of the front part of the automobile and is connected with the frame by a front suspension frame. A front axle of an automobile with a conventional structure is disclosed in chinese patent application No. 2011201792654, which is entitled "front axle assembly of an automobile" with publication date of 2011, 12 and 28. The automobile front axle comprises a cross rod and two cantilevers, a frame supporting part is arranged at each of two ends of the cross rod, the cantilevers are connected to two ends of the cross rod respectively, and main pin holes are formed in the cantilevers. When the front wheel steering device is used, the steering knuckle is arranged in the main pin hole in a penetrating mode through the main pin and connected with the front shaft, and the front wheel is installed on the steering knuckle.

The existing front axle has the following defects: the side collision protection cannot be effectively carried out, so that energy absorption can be realized only through the deformation and the collapse of the frame when the vehicle is subjected to side collision, and the deformation and the collapse of the frame are easy to hurt passengers.

Disclosure of Invention

The invention provides an automobile front axle with a side impact energy-absorbing structure, which can absorb side impact energy without collapsing and deforming a frame when side impact occurs, and solves the problem of poor safety caused by the fact that an automobile body needs to collapse and absorb energy when the existing automobile is subjected to side impact.

The technical problem is solved by the following technical scheme: the utility model provides an establish side and bump automobile front axle of energy-absorbing structure, includes the front axle, the front axle includes the horizontal pole and is located two cantilevers at horizontal pole both ends, a serial communication port, both ends respectively are equipped with a side and bump the energy-absorbing structure about the horizontal pole, the side is bumped the energy-absorbing structure and is included setting up the drive rack of cylinder, sealed sliding connection compression piston and drive compression piston in cylinder one end along controlling the direction extension in the horizontal pole, the horizontal pole is equipped with and dodges the hole along controlling the rectangular shape of direction extension, the drive rack is worn to establish rectangular shape dodges downtheholely, the other end of cylinder is equipped with the jet orifice, be connected with in the jet orifice and work as the sealed head of the gaseous extrusion in the cylinder when atmospheric pressure rises to the setting value. When the side impact energy absorption device is used, the driving frame extends out of the vehicle body from the side face of the vehicle body and is connected with the upper side bumper, when the side impact is received, the side safety box drives the driving frame, the driving frame drives the compression piston to compress gas in the cylinder to play an energy absorption role, along with the rise of the pressure in the cylinder, fluid rushes out the sealing head, the fluid flows out of the jet hole to realize energy absorption, and if the two processes are adopted, the impact energy can be consumed, so that the side impact energy absorption is realized. Through setting up the jet orifice and connecting the top seal head, can improve collision energy-absorbing effect, if do not set up the top seal head, then collision energy-absorbing effect can weaken more.

Preferably, the side impact energy absorption structure further comprises a first friction energy dissipation cylinder extending in the left-right direction, a first friction layer is arranged on the inner surface of the first friction energy dissipation cylinder, the strip-shaped avoidance hole is formed in the first friction energy dissipation cylinder, the driving frame comprises a connecting frame, a first connecting rod connected to one side of the connecting frame and a second connecting rod connected to the other side of the connecting frame, the connecting frame is provided with a second friction layer, the connecting frame is connected to the inside of the first friction pin energy cylinder through the second friction layer and the first friction layer in a sliding mode, and the second connecting rod is connected to the compression piston. The energy absorption device has the advantages that the energy absorption is carried out by compressing gas and carrying out gas injection, and friction energy absorption is carried out synchronously, so that more collision energy can be absorbed by a smaller stroke, and the width of the bearing space of the vehicle body is increased on the premise of keeping the appearance width size and the collision energy absorption effect of the vehicle body unchanged.

Preferably, the side impact energy absorption structure further comprises an energy absorption piston and a second friction energy dissipation cylinder extending in the left-right direction, a third friction layer is arranged on the inner surface of the second friction energy dissipation cylinder, a fourth friction layer is arranged on the circumferential surface of the energy absorption piston, the energy absorption piston is connected with the third friction layer in a sliding mode through the fourth friction layer and is connected into the second friction energy dissipation cylinder, and the energy absorption piston is connected with the connecting frame through a third connecting rod. The width of the bearing space of the vehicle body can be improved on the premise of keeping the appearance width and the size of the vehicle body and the collision energy absorption effect unchanged.

Preferably, the cylinder surrounds the exterior of the second friction dissipater cylinder. The convenience in making the layout can be improved.

Preferably, a pipe body is connected in the cross rod in a sliding and sealing mode, the inner space of the pipe body forms two second friction energy dissipation cylinders, and two cylinders are defined between the two ends of the pipe body and the cross rod. When one side is collided to cause the compression piston at the side to move, the pipe body also moves, so that the side collision energy-absorbing structure at the other side participates in friction energy absorption; thereby playing the role of improving the friction energy absorption effect.

Preferably, the peripheral surface of the sealing head is provided with a constant pressure ring and an annular barb for preventing the sealing head from being inserted into the cylinder, a cylindrical section is arranged between the constant pressure ring and the annular barb, the sealing head is connected with the injection hole in a sealing mode through the cylindrical section, and the end face, facing one end of the sealing section, of the constant pressure ring is a conical surface. The convenience in assembly can be improved and the reliability in connection can be ensured.

As preferred, the sealing head includes that interior pipe and cover establish the excircle pipe outside interior pipe, the outer end of interior pipe is equipped with the diapire and quilt the diapire is sealed, the inner of interior pipe and the inner integrated into one piece of outer pipe are in the same place form the deformation between interior pipe and the excircle pipe and dodge the groove, decide on the outer peripheral face of the outer pipe that clamping ring and annular barb all set up. The convenience in assembly can be improved and the reliability in connection can be ensured.

Preferably, the sealing head comprises an inner circular tube, the outer end of the inner circular tube is provided with a bottom wall and is sealed by the bottom wall, the inner circumferential surface of the inner circular tube is provided with fan blades for guiding the sealing head to rotate, the cross rod is further rotatably connected with a connecting sleeve, the connecting sleeve is connected with an annular blade, a limiting part is formed between the annular blade and the connecting sleeve, and the blade is provided with an annular cutting edge for cutting off the bottom wall from the inner circular tube. When the sealing head is sprayed out, the sealing head can move towards the annular blade, the bottom wall of the sealing head is cut off by the cutting edge of the annular blade, so that fluid flows out through the inside of the sealing head, the sealing head is abutted against the limiting part, and the sealing head and the annular blade rotate together under the action of the fan blade in the fluid flowing-out process to absorb energy, namely, consume energy.

The invention has the following advantages: the side impact resistance is good; the side impact energy absorption uses gas as a medium to absorb the energy of the impact, and increases the factors participating in the energy absorption.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

FIG. 2 is an enlarged cross-sectional view of the junction of the sealing head and the cross-bar;

fig. 3 is an enlarged cross-sectional view of the joint between the sealing head and the cross bar according to the second embodiment of the present invention.

In the figure: the front axle 3, the cross rod 31, the cantilever 32, the tube body 33, the side impact energy absorption structure 41, the driving frame 411, the connecting frame 4110, the first connecting rod 4111, the second connecting rod 4112, the third connecting rod 4113, the cylinder 412, the injection hole 4121, the compression piston 413, the first friction energy dissipation cylinder 414, the elongated avoidance hole 4141, the second friction energy dissipation cylinder 415, the sealing head 416, the inner circular tube 4161, the outer circular tube 4162, the bottom wall 4163, the deformation avoidance groove 4164, the fixed pressure ring 4165, the end face 41651 of the fixed pressure ring facing one end of the sealing section, the annular barb 4166, the cylindrical section 4167, the fan blade 4168, the energy absorption piston 417, the support frame 418, the plane bearing 4181, the connecting sleeve 419, the blade 4191, the limiting part 4192 and the annular cutting edge 4193.

Detailed Description

The present invention will be described in detail with reference to the following drawings and examples.