CN120396578B - New energy automobile suspension support arm structure that can elastically collapse and reset - Google Patents
New energy automobile suspension support arm structure that can elastically collapse and resetInfo
- Publication number
- CN120396578B CN120396578B CN202510897426.XA CN202510897426A CN120396578B CN 120396578 B CN120396578 B CN 120396578B CN 202510897426 A CN202510897426 A CN 202510897426A CN 120396578 B CN120396578 B CN 120396578B
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- China
- Prior art keywords
- hydraulic
- buffer
- damping
- cavity
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
- B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
- B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
- B60G15/067—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper characterised by the mounting on the vehicle body or chassis of the spring and damper unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/30—Spring/Damper and/or actuator Units
- B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
- B60G2202/312—The spring being a wound spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/412—Pneumatic actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/40—Type of actuator
- B60G2202/41—Fluid actuator
- B60G2202/413—Hydraulic actuator
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention discloses a new energy automobile suspension support arm structure capable of elastically collapsing and resetting, and relates to the field of automobile suspension structures. According to the invention, the flow rate of hydraulic oil in the damping buffer assembly can be regulated to regulate the contraction amplitude between the hydraulic sleeve and the buffer shaft, when the flow rate regulation of the hydraulic oil is reduced, the buffer contraction amplitude between the hydraulic sleeve and the buffer shaft is reduced, so that the whole suspension is harder, and when the flow rate regulation of the hydraulic oil is increased, the buffer contraction amplitude between the hydraulic sleeve and the buffer shaft is increased, so that the whole suspension is softer, the contraction shock absorption amplitude of the suspension can be regulated according to the driving habit of a driver, thereby being beneficial to improving the driving comfort and the applicability of the suspension, and on the other hand, when a vehicle is driven on a relatively flat road, the flow rate of the hydraulic oil can be regulated and increased, so that the whole suspension is softer, a better shock absorption effect is provided, and when the vehicle is driven on an uneven road, the flow rate of the hydraulic oil can be regulated and reduced, and the shock absorption amplitude of the vehicle is reduced.
Description
Technical Field
The invention belongs to the field of automobile suspension structures, and particularly relates to a new energy automobile suspension support arm structure capable of being elastically collapsed and reset.
Background
Automotive suspensions are important components to ensure ride comfort. Meanwhile, the automobile suspension is used as a force transmission part for connecting a frame (or an automobile body) and an axle (or wheels), and is an important part for ensuring the running safety of an automobile. All can install hydraulic shock absorber on the automotive suspension among the prior art, cushion the shock attenuation to the automobile body through hydraulic shock absorber's damping principle. Most of the damping effects of the existing hydraulic damper are fixedly designed, namely the telescopic damping amplitude of the existing hydraulic damper is fixed, and the hydraulic damper cannot be correspondingly adjusted according to the habit of drivers and passengers and the actual road conditions, so that the comfort of vehicle driving is affected.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a novel energy automobile suspension support arm structure capable of elastically collapsing and resetting, so as to overcome the technical problems in the prior art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
The invention relates to a new energy automobile suspension support arm structure capable of elastically collapsing and resetting, which comprises a support mechanism, wherein the support mechanism comprises a main frame, a hub connecting frame and a movable connecting piece, the movable connecting piece is arranged between the main frame and the hub connecting frame, and a buffer mechanism is also arranged between the main frame and the hub connecting frame;
The damping mechanism comprises a hydraulic sleeve, a damping shaft, an elastic damping supporting component, a damping buffering component and a flow speed adjusting component, wherein the hydraulic sleeve and the damping shaft are movably inserted, the elastic damping supporting component is supported between the hydraulic sleeve and the damping shaft, the damping buffering component is arranged in the hydraulic sleeve, the damping shaft can drive hydraulic oil in the damping buffering component to squeeze and flow in the hydraulic sleeve during shrinkage damping so as to damp damping, and the flow speed adjusting component can adjust the flow speed of the hydraulic oil during damping.
Further, the swing joint piece includes linking arm, lower linking arm and two universal ball connectors, two universal ball connectors respectively fixed mounting is in the inboard upper and lower end of wheel hub link, the one end of going up the linking arm is rotated with the upper end of body frame and is connected, the other end of going up the linking arm is rotated with the universal ball connector swing joint of the inboard upper end of wheel hub link, the one end of lower linking arm is rotated with the lower extreme of body frame and is connected, the other end of lower linking arm is rotated with the universal ball connector swing joint of the inboard lower extreme of wheel hub link.
Further, one end of the inner side surface of the hub connecting frame is fixedly provided with a steering connector.
Further, the main frame is made of elastic metal materials, the main frame is of a U-shaped structure, and an elastic connecting plate is arranged at an opening of the U-shaped structure.
Further, the elastic buffer support assembly comprises a buffer spring and two spring seats, wherein the two spring seats are respectively and fixedly arranged on the hydraulic sleeve and the buffer shaft, and the buffer spring is sleeved on the outer ring of the hydraulic sleeve and the buffer shaft and is abutted between the two spring seats.
Further, damping buffer assembly includes hydraulic piston, hydraulic piston seals slidable mounting in the inside of hydraulic pressure cover, separates the inside of hydraulic pressure cover and forms two left and right sides hydraulic pressure buffer chamber, two hydraulic pressure buffer intracavity all is filled with hydraulic oil, hydraulic piston's one end and the inboard end fixed connection of buffering axle, hydraulic piston has seted up the water conservancy diversion hole that can control two hydraulic pressure buffer chamber intercommunication.
Further, the flow velocity adjusting assembly comprises a chute and an air pressure driving unit, the chute is arranged in the hydraulic piston, one end of the chute is communicated with the diversion hole, a pore adjusting plate is slidably arranged in the chute, and the pore adjusting plate can move in the direction of the diversion hole under the driving of the air pressure driving unit so as to adjust the pore size of the diversion hole.
Further, the pneumatic driving unit comprises an interface, a gas guide cavity and a pressure cavity, the pressure cavity is formed in the hydraulic piston and is located at one side of the sliding groove, an adjusting piston is slidably mounted in the pressure cavity, one end of the adjusting piston is fixedly provided with a connecting rod, one end of the connecting rod extends into the sliding groove and is fixedly connected with the pore adjusting plate, the outer ring of the connecting rod is sleeved with a pressure spring, one end of the pressure spring is abutted to the end part of the adjusting piston, and the other end of the pressure spring is abutted to the end wall of the pressure cavity;
The air guide cavity is formed in the buffer shaft, the interface is fixedly arranged at the outer side end of the buffer shaft and is communicated with the air guide cavity, the outer side end of the interface is communicated with the air source, and one end of the pressure cavity is provided with an air guide hole communicated with the air guide cavity.
Further, the inside of the hydraulic sleeve is also provided with an air piston in a sliding sealing manner, the tail end of the air piston in the hydraulic sleeve is isolated to form a pneumatic buffer cavity, and buffer gas is filled in the pneumatic buffer cavity.
Further, an air tap is fixedly arranged at one end of the air piston, which is positioned in the hydraulic buffer cavity, a through hole communicated with the air tap is formed in the air piston, an air duct is connected and arranged on the air tap, and one end of the air duct is communicated with the air guide cavity.
The invention has the following beneficial effects:
1. According to the invention, the vehicle can be buffered and damped through the cooperation of the elastic buffer support component, the hydraulic sleeve, the buffer shaft and the damping buffer component, so that the travelling comfort of the vehicle is improved, the flow rate of hydraulic oil in the damping buffer component can be regulated through the flow rate regulating component to regulate the contraction amplitude between the hydraulic sleeve and the buffer shaft, when the flow rate regulation of the hydraulic oil is reduced, the buffer contraction amplitude between the hydraulic sleeve and the buffer shaft is reduced, the whole suspension is harder, and when the flow rate regulation of the hydraulic oil is increased, the buffer contraction amplitude between the hydraulic sleeve and the buffer shaft is increased, so that the whole suspension is softer, the contraction shock absorption amplitude of the suspension can be regulated according to the driving habit of a driver, the travelling comfort of the vehicle and the applicability of the suspension are improved, and on the other hand, when the vehicle travels on a relatively flat road, the flow rate of the hydraulic oil can be regulated and increased, the whole suspension is softer, a better shock absorption effect is provided, and when the vehicle travels on a rough road, the flow rate of the hydraulic oil can be regulated and the whole suspension is harder, the phenomenon that the chassis of the vehicle is excessively contracted and the chassis or the suspension is excessively deformed and damaged is prevented, and the travelling safety of the vehicle is improved.
2. According to the invention, the air piston and the air pressure buffer cavity are further arranged in the hydraulic cylinder, and the air piston and the air pressure buffer cavity are matched with the damping buffer assembly to perform buffering and damping, so that when the hydraulic piston in the damping buffer assembly reciprocates, oil liquid needs to flow bidirectionally in the compression and rebound processes, the elastic buffering of the air pressure buffer cavity can reduce abrupt change of oil liquid flowing resistance, so that the damping force is more linear, the suspension buffering and damping process is more stable, and the comfort of a vehicle in running is improved.
3. According to the invention, the pore adjusting plate is driven to move towards the direction of the diversion hole on the hydraulic piston by the air pressure so as to adjust the pore size of the diversion hole, so that the flow speed of hydraulic oil flowing through the diversion hole and the buffering damping effect of the buffering mechanism during damping are adjusted, the air pressure is driven to adjust the pores of a plurality of diversion holes, so that the pore adjusting process is more convenient, the air pressure cavity is communicated with the air pressure buffering cavity, when the buffering mechanism contracts and dampens, the larger the contraction amplitude is, the air pressure in the air pressure cavity and the air pressure buffering cavity is larger, so that the pore adjusting plate can be driven by the air pressure to continuously move towards the diversion hole, the gap of the diversion hole and the flow speed of the hydraulic oil are adjusted and reduced, and the buffering contraction speed of the buffering mechanism is further slowed down, and the chassis bottoming or excessive deformation damage of a vehicle chassis caused by excessive contraction of the buffering mechanism is prevented.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that it is also possible for a person skilled in the art to obtain the drawings from these drawings without inventive effort.
FIG. 1 is a schematic perspective view of a suspension arm structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention shown in FIG. 1 at a partially enlarged scale;
FIG. 3 is a second perspective view of a suspension arm structure according to the present invention;
FIG. 4 is a third perspective view of a suspension arm structure according to the present invention;
FIG. 5 is a schematic view of the structure of the present invention shown in FIG. 4 at B in a partially enlarged manner;
FIG. 6 is a schematic perspective view of a suspension arm structure of the present invention;
FIG. 7 is a schematic view of the structure of the present invention shown in FIG. 6 at C in a partially enlarged manner;
FIG. 8 is a schematic perspective view of a suspension arm structure of the present invention;
FIG. 9 is a schematic view of a partially enlarged structure of the invention at D of FIG. 8;
FIG. 10 is a schematic perspective view of a suspension arm structure of the present invention;
fig. 11 is a schematic view of a partial enlarged structure at E of fig. 10 according to the present invention.
The hydraulic buffer device comprises a supporting mechanism 1, a main frame 11, an upper connecting arm 12, a lower connecting arm 13, a hub connecting frame 14, a universal ball connector 15, a steering connector 16, a buffer mechanism 21, a hydraulic sleeve 22, a spring seat 23, a buffer spring 24, a buffer shaft 25, a hydraulic piston 26, a diversion hole 27, a hydraulic buffer cavity 28, an air piston 29, a pneumatic buffer cavity 210, an interface 211, an air tap 212, an air duct 213, an air duct cavity 214, a chute 215, a pore adjusting plate 216, a pressure spring 217, a pressure cavity 218, a connecting rod 219, an adjusting piston 220, an air duct 221 and a through hole.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments in the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "top," "middle," "inner," and the like indicate an orientation or positional relationship, merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Example 1
1-3, 8 And 9, the invention discloses a novel energy automobile suspension support arm structure capable of elastically collapsing and resetting, which comprises a support mechanism 1, wherein the support mechanism 1 comprises a main frame 11, a hub connecting frame 14 and a movable connecting piece, the movable connecting piece is arranged between the main frame 11 and the hub connecting frame 14, a buffer mechanism 2 is also arranged between the main frame 11 and the hub connecting frame 14, the buffer mechanism 2 comprises a hydraulic sleeve 21, a buffer shaft 24, an elastic buffer support component, a damping buffer component and a flow rate adjusting component, the hydraulic sleeve 21 and the buffer shaft 24 are movably inserted, the elastic buffer support component is supported between the hydraulic sleeve 21 and the buffer shaft 24, the damping buffer component is arranged in the hydraulic sleeve 21, the buffer shaft 24 can drive hydraulic oil in the damping buffer component to squeeze and flow in the hydraulic sleeve 21 during shrinkage and shock absorption, so as to damp and shock absorption, and the flow rate adjusting component can adjust the flow rate of the hydraulic oil during shock absorption;
the main frame 11 is fixedly connected with a chassis of the new energy automobile, the hub connecting frame 14 is fixedly connected with the hub of the new energy automobile, the new energy automobile is supported through the suspension supporting arm structure, when the automobile runs and jolts, the buffer shaft 24 contracts inwards towards the hydraulic sleeve 21, so that the elastic buffer supporting component is driven to shrink and buffer vibration, meanwhile, the buffer shaft 24 drives hydraulic oil in the damping buffer component to squeeze and flow in the hydraulic sleeve 21, so that damping vibration is absorbed, the automobile is buffered and damped through the elastic buffer supporting component, the hydraulic sleeve 21, the buffer shaft 24 and the damping buffer component, the comfort of the automobile running is improved, the flow rate of hydraulic oil in the damping buffer component can be adjusted through the flow rate adjusting component, so that the contraction amplitude between the hydraulic sleeve 21 and the buffer shaft 24 is reduced, the whole suspension is harder, when the flow rate of the hydraulic oil is adjusted and increased, the whole suspension is more flexible, the whole is more flexible according to the driving habit of a driver, the whole is beneficial to improving the driving comfort of the hydraulic oil, the whole is better, the deformation of the automobile is prevented from being damaged when the whole suspension is adjusted, the whole is more flexible, the automobile is prevented from being excessively, the whole is prevented from being deformed, and the automobile is more stable, and the automobile is prevented from being excessively running, and the whole is more stable.
Example two
Referring to fig. 1-3, the difference between the present embodiment and the above embodiment is that the movable connecting piece includes an upper connecting arm 12, a lower connecting arm 13 and two universal ball connectors 15, the two universal ball connectors 15 are respectively and fixedly mounted at the upper and lower ends of the inner side of the hub connecting frame 14, one end of the upper connecting arm 12 is rotatably connected with the upper end of the main frame 11, the other end of the upper connecting arm 12 is movably connected with the universal ball connector 15 at the upper end of the inner side of the hub connecting frame 14, one end of the lower connecting arm 13 is rotatably connected with the lower end of the main frame 11, the other end of the lower connecting arm 13 is movably connected with the universal ball connector 15 at the lower end of the inner side of the hub connecting frame 14, and by providing the upper and lower connecting arms, the stability of the connection between the main frame 11 and the hub connecting frame 14 can be improved, and the connection between the connecting arms and the hub connecting frame 14 through the universal ball connectors 15, so that the connecting arms and the hub connecting frame 14 have enough rotational degrees of freedom in the vehicle steering and damping process can be ensured.
Furthermore, a steering connector 16 is fixedly installed at one end of the inner side surface of the hub connecting frame 14, and the steering connector 16 can be connected with a steering system of the new energy automobile, so that wheels can be driven to steer by pushing and pulling through the cooperation of the steering system and the steering connector 16.
Still further, body frame 11 is made for elastic metal material, and body frame 11 is U-shaped structure, and the elastic connection board is installed to U-shaped structure's opening part, and when hydraulic sleeve 21 and buffering axle 24 shrink shock attenuation, can drive body frame 11 and take place elasticity collapse deformation, after the shock attenuation is accomplished, body frame 11 can the elasticity restore to the original state, and the elastic connection board can carry out elasticity spacing to body frame 11, improves body frame 11's stability.
Example III
Referring to fig. 1 and 2, the difference between the present embodiment and the above embodiment is that the elastic buffer support assembly includes a buffer spring 23 and two spring seats 22, the two spring seats 22 are respectively and fixedly installed on the hydraulic sleeve 21 and the buffer shaft 24, and the buffer spring 23 is sleeved on the outer ring of the hydraulic sleeve 21 and the buffer shaft 24 and is abutted between the two spring seats 22;
The buffer spring 23 is used for carrying out bearing support on the vehicle, when the vehicle jolts, the buffer shaft 24 contracts inwards the hydraulic sleeve 21, so that the two spring seats 22 move close to each other, the two spring seats 22 are matched to compress and contract the buffer spring 23 so as to buffer and shock the vehicle, and then the buffer spring 23 is reset and extended under the action of reset elasticity, and drives the buffer shaft 24 to move outwards along the hydraulic sleeve 21 to extend and reset.
Example IV
Referring to fig. 2, 4 and 5, the difference between the present embodiment and the above embodiment is that the damping buffer assembly includes a hydraulic piston 25, the hydraulic piston 25 is slidably mounted in the hydraulic sleeve 21 in a sealing manner, the hydraulic sleeve 21 is divided into two left and right hydraulic buffer chambers 27, hydraulic oil is filled in the two hydraulic buffer chambers 27, one end of the hydraulic piston 25 is fixedly connected with the inner side end of the buffer shaft 24, and the hydraulic piston 25 is provided with a flow guiding hole 26 capable of communicating the two left and right hydraulic buffer chambers 27;
When the buffer shaft 24 contracts towards the inside of the hydraulic sleeve 21 for shock absorption, the buffer shaft 24 drives the hydraulic piston 25 to move towards the right hydraulic buffer cavity 27, hydraulic oil in the right hydraulic buffer cavity 27 is extruded, so that the hydraulic oil in the right hydraulic buffer cavity 27 is conveyed into the left hydraulic buffer cavity 27 through the flow guide hole 26 on the hydraulic piston 25, correspondingly, when the buffer shaft 24 moves towards the outside of the hydraulic sleeve 21 for reset under the action of the reset elastic force of the buffer spring 23, the buffer shaft 24 drives the hydraulic piston 25 to move towards the left hydraulic buffer cavity 27, so that the hydraulic oil in the left hydraulic buffer cavity 27 is extruded and conveyed towards the right hydraulic buffer cavity 27, and the hydraulic oil can be driven to reciprocate in the left hydraulic buffer cavity 27 and the right hydraulic buffer cavity 27 in a reciprocating manner in a shock absorption process, and the dynamic potential energy can be converted into heat energy through viscous friction in a reciprocating flow process of the hydraulic oil, so that a shock absorption process is realized.
Example five
Referring to fig. 8 and 9, the difference between the present embodiment and the above embodiment is that the flow rate adjusting assembly includes a chute 214 and a pneumatic driving unit, the chute 214 is disposed inside the hydraulic piston 25, one end of the chute 214 is fixedly connected with the flow guiding hole 26, a hole adjusting plate 215 is slidably mounted inside the chute 214, the hole adjusting plate 215 can move in the direction of the flow guiding hole 26 under the driving of the pneumatic driving unit to adjust the size of the hole of the flow guiding hole 26, the pneumatic driving unit includes a connector 210, a gas guiding cavity 213 and a pressure cavity 217, the pressure cavity 217 is disposed inside the hydraulic piston 25 and is located at one side of the chute 214, an adjusting piston 219 is slidably mounted inside the pressure cavity 217, one end of the adjusting piston 219 is fixedly mounted with a connecting rod 218, one end of the connecting rod 218 extends inside the chute 214 and is fixedly connected with the hole adjusting plate 215, an outer ring of the connecting rod 218 is sleeved with a pressure spring 216, one end of the pressure spring 216 is abutted against an end of the adjusting piston 219, and the other end of the pressure spring 216 is abutted against an end wall of the pressure cavity 217;
When the hydraulic piston 25 moves back and forth to drive the hydraulic oil to flow for shock absorption, the larger the pore of the diversion hole 26 is, the faster the flow velocity of the hydraulic oil flowing through the diversion hole 26 is, so that the hydraulic oil in the hydraulic buffer cavity 27 can flow and be conveyed into the hydraulic buffer cavity 27 at the other side more easily, the moving stroke of the hydraulic piston 25 can be further improved, the contraction buffer amplitude is improved, correspondingly, the smaller the pore of the diversion hole 26 is, the slower the flow velocity of the hydraulic oil flowing through the diversion hole 26 is, so that the conveying speed of the hydraulic oil in the hydraulic buffer cavity 27 to the hydraulic buffer cavity 27 at the other side is reduced, and the moving stroke of the hydraulic piston 25 can be further reduced, so that the contraction buffer amplitude is reduced;
Specifically, when the contraction buffer amplitude of the buffer shaft 24 and the hydraulic sleeve 21 needs to be reduced, the air source continuously charges air into the air cavity 213 and the pressure cavity 217 through the interface 210, and at the moment, the air pressure in the pressure cavity 217 overcomes the elasticity of the pressure spring 216 to press and move the adjusting piston 219 towards the direction of the pore adjusting plate 215, so that the adjusting piston 219 drives the pore adjusting plate 215 to move towards the guide hole 26 through the connecting rod 218, the pore adjusting plate 215 increases the sealing and shielding area of the guide hole 26, and the size of the pore of the guide hole 26 is adjusted and reduced, so that the speed of hydraulic oil flowing through the guide hole 26 is slowed during buffering and damping;
When the contraction buffer amplitude of the buffer shaft 24 and the hydraulic sleeve 21 needs to be increased, the air guide cavity 213 and the pressure cavity 217 are pumped and decompressed through the interface 210, at the moment, the reset elastic force of the pressure spring 216 in the pressure cavity 217 pushes the adjusting piston 219 to move in the direction away from the aperture adjusting plate 215, so that the adjusting piston 219 drives the aperture adjusting plate 215 to move in the direction away from the guide hole 26 through the connecting rod 218, the aperture adjusting plate 215 and the guide hole 26 gradually move and stagger to reduce the sealing shielding area of the guide hole 26, the size of the aperture of the guide hole 26 is adjusted and increased, and the speed of hydraulic oil flowing through the guide hole 26 during buffering and damping is increased.
Example six
Referring to fig. 4-11, the difference between the present embodiment and the above embodiment is that an air piston 28 is slidably mounted in the hydraulic sleeve 21, the air piston 28 is isolated from the end of the hydraulic sleeve 21 to form a pneumatic buffer cavity 29, and the pneumatic buffer cavity 29 is filled with buffer gas;
When the hydraulic piston 25 moves towards the right hydraulic buffer chamber 27 to shrink and absorb shock, the hydraulic piston 25 extrudes and pressurizes hydraulic oil in the right hydraulic buffer chamber 27, at this time, the hydraulic buffer chamber 27 extrudes and moves the air piston 28 towards the pneumatic buffer chamber 29 through hydraulic pressure of the hydraulic oil, so that the space of the pneumatic buffer chamber 29 is reduced, the internal air pressure is increased, correspondingly, when the hydraulic piston 25 moves towards the left hydraulic buffer chamber 27, the space of the right hydraulic buffer chamber 27 increases and the hydraulic pressure is reduced, at this time, the pneumatic buffer chamber 29 extrudes and moves the air piston 28 towards the hydraulic buffer chamber 27 through the air pressure, so that the buffer shock absorption is carried out through the assistance of air pressure shrinkage in the pneumatic buffer chamber 29, the elastic buffer of the pneumatic buffer chamber 29 can reduce the abrupt change of hydraulic oil flow resistance, and the damping force is more linear, so that the suspension buffer shock absorption process is more stable, and the comfort of the vehicle is beneficial to improving.
Further, an air tap 211 is fixedly installed at one end of the air piston 28, which is located in the hydraulic buffer cavity 27, a through hole 221 communicated with the air tap 211 is formed in the air piston 28, an air duct 212 is installed on the air tap 211 in a connecting manner, and one end of the air duct 212 is communicated with the air duct 213;
When the buffer shaft 24 contracts inwards to absorb shock, the larger the contraction amplitude is, the larger the movement amplitude of the air piston 28 towards the direction of the air pressure buffer cavity 29 is, so that the smaller the inner space of the air pressure buffer cavity 29 is, the higher the air pressure is, at the moment, the air guide cavity 213 is communicated with the air pressure buffer cavity 29 through the through hole 221, the air nozzle 211 and the air guide pipe 212, so that the air pressure in the air guide cavity 213 and the air pressure in the pressure cavity 217 is synchronously increased, the air pressure in the pressure cavity 217 drives the pore adjusting plate 215 to move towards the guide hole 26, the size of a gap of the guide hole 26 and the flow velocity of hydraulic oil can be adjusted and reduced, the buffer contraction speed of the continuous contraction of the hydraulic piston 25 and the buffer shaft 24 is further reduced, and excessive deformation damage of a chassis or a suspension of a vehicle caused by excessive contraction of the buffer shaft 24 is prevented, and the safety of the vehicle running is improved.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above disclosed preferred embodiments of the invention are merely intended to help illustrate the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention.
Claims (8)
1. The novel energy automobile suspension support arm structure capable of elastically collapsing and resetting comprises a support mechanism and is characterized in that the support mechanism comprises a main frame, a hub connecting frame and a movable connecting piece, wherein the movable connecting piece is arranged between the main frame and the hub connecting frame, and a buffer mechanism is also arranged between the main frame and the hub connecting frame;
The damping mechanism comprises a hydraulic sleeve, a damping shaft, an elastic damping supporting component, a damping buffering component and a flow speed adjusting component, wherein the hydraulic sleeve and the damping shaft are movably inserted, the elastic damping supporting component is supported between the hydraulic sleeve and the damping shaft, the damping buffering component is arranged in the hydraulic sleeve, the damping shaft can drive hydraulic oil in the damping buffering component to squeeze and flow in the hydraulic sleeve during shrinkage damping so as to damp damping, and the flow speed adjusting component can adjust the flow speed of the hydraulic oil during damping;
the damping buffer assembly comprises a hydraulic piston, the hydraulic piston is arranged in the hydraulic sleeve in a sealing and sliding manner, the hydraulic sleeve is divided into a left hydraulic buffer cavity and a right hydraulic buffer cavity, and the hydraulic piston is provided with a diversion hole capable of communicating the left hydraulic buffer cavity with the right hydraulic buffer cavity;
The flow speed adjusting assembly comprises a chute and an air pressure driving unit, the chute is arranged in the hydraulic piston, one end of the chute is communicated with the diversion hole, a pore adjusting plate is slidably arranged in the chute, and the pore adjusting plate can move in the direction of the diversion hole under the driving of the air pressure driving unit so as to adjust the pore size of the diversion hole;
The pneumatic driving unit comprises an interface, a gas guide cavity and a pressure cavity, the pressure cavity is arranged in the hydraulic piston and is positioned at one side of the sliding groove, an adjusting piston is slidably arranged in the pressure cavity, one end of the adjusting piston is fixedly provided with a connecting rod, one end of the connecting rod extends into the sliding groove and is fixedly connected with the pore adjusting plate, the outer ring of the connecting rod is sleeved with a pressure spring, one end of the pressure spring is abutted to the end part of the adjusting piston, and the other end of the pressure spring is abutted to the end wall of the pressure cavity;
the air guide cavity is arranged in the buffer shaft, the interface is fixedly arranged at the outer side end of the buffer shaft and is communicated with the air guide cavity, the outer side end of the interface is communicated with the air source, and one end of the pressure cavity is provided with an air guide hole communicated with the air guide cavity.
2. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1, wherein the movable connecting piece comprises an upper connecting arm, a lower connecting arm and two universal ball connectors, the two universal ball connectors are respectively and fixedly arranged at the upper end and the lower end of the inner side of the hub connecting frame, one end of the upper connecting arm is rotatably connected with the upper end of the main frame, the other end of the upper connecting arm is movably connected with the universal ball connector at the upper end of the inner side of the hub connecting frame, one end of the lower connecting arm is rotatably connected with the lower end of the main frame, and the other end of the lower connecting arm is movably connected with the universal ball connector at the lower end of the inner side of the hub connecting frame.
3. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1 is characterized in that a steering connector is fixedly arranged at one end of the inner side surface of the hub connecting frame.
4. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1, wherein the main frame is made of elastic metal materials, the main frame is of a U-shaped structure, and an elastic connecting plate is arranged at an opening of the U-shaped structure.
5. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1, wherein the elastic buffer support assembly comprises a buffer spring and two spring seats, the two spring seats are respectively and fixedly arranged on a hydraulic sleeve and a buffer shaft, and the buffer spring is sleeved on the outer ring of the hydraulic sleeve and the buffer shaft and is abutted between the two spring seats.
6. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1 is characterized in that hydraulic oil is filled in two hydraulic buffer cavities, and one end of the hydraulic piston is fixedly connected with the inner side end of a buffer shaft.
7. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 1, wherein an air piston is further installed in the hydraulic sleeve in a sliding sealing mode, the air piston is isolated at the tail end of the inside of the hydraulic sleeve to form a pneumatic buffer cavity, and buffer gas is filled in the pneumatic buffer cavity.
8. The novel energy automobile suspension support arm structure capable of being elastically collapsed and reset according to claim 7, wherein an air nozzle is fixedly arranged at one end of the air piston, which is positioned in the hydraulic buffer cavity, a through hole communicated with the air nozzle is formed in the air piston, an air duct is connected and arranged on the air nozzle, and one end of the air duct is communicated with the air duct.
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| CN113153959A (en) * | 2021-04-13 | 2021-07-23 | 浙江正盛减振器有限公司 | Automobile suspension damping device |
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| DE3409154A1 (en) * | 1983-03-14 | 1984-09-20 | Volkswagenwerk Ag, 3180 Wolfsburg | Spring strut or damper for motor vehicles |
| AU661993B2 (en) * | 1991-12-06 | 1995-08-17 | Leo W. Davis | Dual piston strut |
| JPH05178058A (en) * | 1991-12-27 | 1993-07-20 | Tokico Ltd | Suspension controller |
| TWM273468U (en) * | 2004-12-20 | 2005-08-21 | Jr-Luen Jou | Damping tube for shock absorber |
| CN210318322U (en) * | 2019-04-23 | 2020-04-14 | 浙江淅川减振器有限公司 | Multistage adjustable bumper shock absorber |
| CN215567598U (en) * | 2021-07-19 | 2022-01-18 | 江苏新世纪机车科技有限公司 | Stable hydraulic shock absorber for electric vehicle |
| CN119122978A (en) * | 2024-09-09 | 2024-12-13 | 天津爔哲汽车零部件有限公司 | Automobile hydraulic shock absorber |
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| CN113153959A (en) * | 2021-04-13 | 2021-07-23 | 浙江正盛减振器有限公司 | Automobile suspension damping device |
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