CN113619516B - Driving axle assembly capable of assisting in absorbing side impact energy through shock absorber during side impact - Google Patents
Driving axle assembly capable of assisting in absorbing side impact energy through shock absorber during side impact Download PDFInfo
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- CN113619516B CN113619516B CN202111090495.8A CN202111090495A CN113619516B CN 113619516 B CN113619516 B CN 113619516B CN 202111090495 A CN202111090495 A CN 202111090495A CN 113619516 B CN113619516 B CN 113619516B
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- China
- Prior art keywords
- axle housing
- part side
- housing part
- eliminating
- side collision
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/42—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects extending primarily along the sides of, or completely encircling, a vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
- B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
- B60G13/02—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally
- B60G13/04—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dampers dissipating energy, e.g. frictionally mechanically, e.g. having frictionally-engaging springs as damping elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T5/00—Vehicle modifications to facilitate cooling of brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
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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
- B60G2202/20—Type of damper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/10—Damping action or damper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The application relates to a driving axle assembly with a shock absorber for assisting in absorbing side collision energy, which comprises an axle housing and a rear cross beam, wherein two ends of the rear cross beam are supported at two ends of the axle housing through the shock absorber; the application also comprises 2 longitudinal bumpers distributed on two sides of the frame, and the longitudinal bumpers are connected with the rear cross beam through a bridge shell part side collision eliminating energy device. The application has the advantages that the side collision energy can be absorbed without the frame collapsing deformation when the side collision is generated, and the shock absorber supporting the frame participates in energy absorption, thereby solving the problem of poor safety caused by the vehicle body collapsing energy absorption when the side collision of the existing vehicle is required.
Description
The application relates to a divisional application of application number 2020107684680, application date 2020, 08 and 03, and a driving axle assembly with a name of 'a shock absorber for assisting in absorbing side impact energy'.
Technical Field
The application relates to a driving axle of an automobile, in particular to a driving axle assembly with a shock absorber for assisting in absorbing side collision energy.
Background
The bridge frame of the automobile consists of a frame, a rear axle (driving axle) for supporting the frame and a front axle (also called as a front axle, a steering axle) of the automobile, wherein both ends of the driving axle and the front axle are connected with wheels, and the frame is connected with the frame through a suspension mechanism.
The driving axle consists of main speed reducer, differential mechanism, half axle and axle housing. The main speed reducer, the differential mechanism and the drive axle assembly are arranged in the drive axle housing and positioned at the rear part of the automobile, and power is transmitted to the rear wheels. An existing axle housing is disclosed in the patent document of chinese patent publication CN 205853768U. The basic structure of current axle housing includes the axle housing body, and the axle housing body is equipped with reduction gear installation section and is located two semi-axis installation sections of reduction gear installation section both sides, and the free end of semi-axis installation section is equipped with the wheel connector, and reduction gear installation section is equipped with the reduction gear installation chamber, and the semi-axis installation section is equipped with the semi-axis installation passageway that extends and communicates the reduction gear installation chamber along the extending direction of semi-axis installation section from the terminal surface of wheel connector. When in use, the speed reducer is arranged in the speed reducer installation cavity, and the two half shafts pass through the half shaft installation channel and then are connected with the wheels to drive the wheels (rear wheels).
The existing automobile drive axle has the following defects: the side collision prevention capability is poor, the energy absorption is realized through the deformation and the collapse of the frame when the side collision occurs, and the deformation and the collapse of the frame are easy to hurt the passengers.
Disclosure of Invention
The application provides a driving axle assembly which can absorb side impact energy without the frame collapsing deformation during side impact and is used for solving the problem of poor safety caused by the fact that the vehicle body collapsing energy absorption is needed during the side impact of the existing vehicle.
The technical problems are solved by the following technical scheme: the driving axle assembly comprises an axle housing and a rear cross beam, wherein two ends of the rear cross beam are supported at two ends of the axle housing through the shock absorber, a speed reducer installation cavity is arranged in the middle of the axle housing, two half axle installation channels which penetrate through two end faces of the axle housing in a one-to-one correspondence manner are arranged in the speed reducer installation cavity, half axles are arranged in the half axle installation channels in a penetrating manner, and the outer ends of the half axles are connected with rear wheels; the vehicle is characterized by further comprising 2 longitudinal bumpers distributed on two sides of the vehicle frame, wherein the longitudinal bumpers are connected with the rear cross beam through a bridge shell part side collision eliminating energy device; the energy absorber comprises an axle housing part side-eliminating collision energy absorber transverse chute arranged in the middle of a rear cross beam, an axle housing part side-eliminating collision energy absorber energy absorption tension spring arranged in the annular chute and extending transversely, an axle housing part side-eliminating collision energy absorber extrusion block in the axle housing part side-eliminating collision energy absorber transverse chute in a sliding mode, an axle housing part side-eliminating collision energy absorber extrusion block hinged to the axle housing part side-eliminating collision energy absorber extrusion block through an upper longitudinal shaft head, and an axle housing part side-eliminating collision energy absorber connecting rod hinged to the lower end of the axle housing part side-eliminating collision energy absorber connecting rod through an axle housing part side-eliminating collision energy absorber lower longitudinal shaft head, wherein the axle housing part side-eliminating collision energy absorber connecting block is connected with the axle housing, the axle housing part side-eliminating collision energy absorber connecting rod is inclined towards the middle of the front cross beam with the upper end of the middle of the axle housing part away from the lower end, and the axle housing part side-eliminating collision energy absorber extrusion tension spring is inclined towards the middle of the front cross beam, and the axle housing part side-eliminating collision energy absorber extrusion block is connected with the axle housing part side-eliminating collision energy absorber extrusion block through the axle housing part side-eliminating collision energy absorber extrusion block, and the axle housing part side-eliminating collision energy absorber extrusion block is connected with the middle of the axle housing part side absorber extrusion energy absorber extrusion block, and the energy absorber extrusion block is connected with the middle of the energy absorber side absorber extrusion block, and the energy absorber side absorber extrusion block is capable of the energy absorber side absorber extrusion side absorber side. When the vehicle is subjected to side collision, the side collision energy pushes the longitudinal bumper to drive the bridge shell part side collision eliminating energy device connecting block to move inwards, the bridge shell part side collision eliminating energy device connecting block pulls the bridge shell part side collision eliminating energy device energy absorbing tension spring to absorb side collision energy, meanwhile, the rear cross beam (part of the vehicle frame) moves downwards under the limiting action of the bridge shell part side collision eliminating energy device connecting rod, and the vehicle frame moves downwards to enable the shock absorber (the shock absorber of the supporting vehicle frame on the vehicle stretches and contracts along the up-down direction to absorb energy and shock) to shrink so as to absorb energy. Therefore, the technical scheme of the application ensures that the shock absorber for supporting the frame not only can shock-proof jolting generated in the running process of the vehicle, but also can absorb side collision energy when the vehicle is subjected to side collision. When jolt vibration is received during vehicle running, the vehicle frame generates up-down direction component sum relative to the axle housing, and when the shock absorber absorbs energy and dampens vibration, the axle housing side collision eliminating energy device connecting rod can drive the axle housing side collision eliminating energy device connecting rod extrusion block to move along the horizontal direction, so that the axle housing side collision eliminating energy device energy absorbing tension spring absorbs energy and dampens vibration.
As the preference, the energy ware is bumped to the side that disappears of axle housing portion still includes that the energy ware rigidity adjustment mechanism is bumped to the side that disappears of axle housing portion disappears, energy ware rigidity adjustment mechanism is bumped to the side that disappears including setting up the axle housing portion that disappears in the rear cross beam and is bumped energy ware cross-sliding chamber and sliding seal and be in the side that disappears in the energy ware cross-sliding chamber's that disappears bridge housing portion disappears and bump the energy ware piston, the side that disappears to bump the energy ware piston will the side that disappears the energy ware cross-sliding chamber cuts apart into the first cavity of axle housing portion and the second cavity of energy ware is bumped to the side that disappears of axle housing portion, the side that disappears to bump energy ware second cavity is located the side that disappears in the axle housing portion and bump energy ware first cavity and the bridge housing portion and bump energy ware extrusion piece and be positive pressure in the side that the first cavity of energy ware cross-sliding chamber is bumped to the side, the side that disappears to bump energy ware cross-sliding chamber, the side that disappears to bump energy ware side to the side to bump energy ware first cavity is equipped with the inflation valve and bridge housing portion and bump energy ware cross-sliding groove, the side that disappears to bump energy ware cross-sliding groove and bump energy ware side to be the pressure, the side that disappears to bump energy ware cross-sliding groove and connect together in the side connector section. When the device is used, the first cavity of the bridge shell part side collision eliminating energy device is inflated to change the air pressure in the first cavity of the bridge shell part side collision eliminating energy device to realize the rigidity adjustment, the bridge shell part side collision eliminating energy device connecting block fixing mechanism loosens the fixing function of the bridge shell part side collision eliminating energy device connecting block, the air pressure in the first cavity of the bridge shell part side collision eliminating energy device is changed to change the initial position of the bridge shell part side collision eliminating energy device extrusion block, so that the change of the initial energy storage of the energy absorbing tension spring of the bridge shell part side collision eliminating energy device is realized, and the rigidity of a vehicle during vibration reduction is changed. And after adjustment, the energy device for eliminating side collision of the bridge shell is fixed on the bridge shell again. The vibration damping rigidity of the existing automobile after leaving the factory cannot be changed, and the technical scheme can enable the vibration damping rigidity of the automobile after leaving the factory to be changed without changing the height of the automobile. Root of Chinese character
Preferably, the axle housing part side collision eliminating energy device connecting block fixing mechanism comprises an axle housing part threaded through hole arranged on the side wall of the axle housing part transverse chute, and an axle housing part jacking bolt which is in threaded connection with the axle housing part side collision eliminating energy device connecting block in the axle housing part threaded through hole and compresses the axle housing part side collision eliminating energy device connecting block in the front side chute.
Preferably, the axle housing part side collision eliminating energy device further comprises a brake cooling mechanism, a rear brake disc is connected to the half shaft, the brake cooling mechanism comprises an air blowing pipe with an outlet end facing the rear brake disc, an opening arranged on the side wall of the axle housing part side collision eliminating energy device transverse sliding cavity, and a sliding plate which is connected with the sliding plate in the axle housing part side collision eliminating energy device transverse sliding cavity and seals an air outlet, the sliding plate is connected with the axle housing part side collision eliminating energy device connecting block through a synchronizing rod, the air pressure of the axle housing part side collision eliminating energy device first cavity is in setting reset, the axle housing part side collision eliminating energy device piston seals the air outlet, the inlet end of the air blowing pipe is connected with the air outlet, the synchronizing rod comprises a sleeve with the upper end connected with the sliding plate, and a rod body with the upper end penetrating through the lower end of the sleeve, and the lower end of the rod body is connected with the axle housing part side collision eliminating energy device connecting block. Vibration received in the running process of the wheel promotes the piston seal of the bridge shell part side collision eliminating energy device to move and reset, and the moving distance reaches the aim that compressed gas in the first cavity of the bridge shell part side collision eliminating energy device flows out through the air outlet pipe and blows to the rear brake disc when the air outlet is exposed, so that the rear brake disc is cooled. According to the technical scheme, the vibration energy can be utilized to control the outflow of gas so as to realize the cooling of the brake disc, and the brake disc is prevented from being overheated so as to influence the braking effect.
The application also comprises a water tank, the axle housing part side collision eliminating energy device further comprises a control valve, the control valve comprises a valve body, a valve core and a valve core reset spring, the air outlet pipe comprises an air outlet section and an air inlet section, a cylindrical surface flow channel, a conical surface flow channel, a fluid outlet and a liquid inlet are arranged in the valve body, the cylindrical surface flow channel is butted with the large diameter end of the conical surface flow channel, the fluid outlet is butted with the small diameter end of the conical surface flow channel, the liquid inlet is arranged on the cylindrical surface flow channel, the inlet end of the air outlet section is connected with the fluid outlet, the outlet end faces towards the rear brake disc, the inlet end of the air inlet section is connected with the air outlet, the outlet end is positioned in the fluid outlet and the opening direction is far away from the direction of the conical surface flow channel, the valve core is connected in the cylindrical surface flow channel in a sliding sealing manner and seals the liquid inlet, the valve core is provided with a liquid flow channel which is communicated with the liquid inlet and the conical surface flow channel from the end face of one end face of the conical surface flow channel, and the liquid inlet is connected with the water tank through the liquid inlet pipe; and the jet flow effect generated when the outlet end of the air inlet section flows out of the air drives the valve core to move, and the opening of the liquid flow channel positioned on the peripheral surface of the valve core is communicated with the liquid inlet. When the air in the first cavity of the front shaft side collision eliminating energy device flows out through the air outlet and the air inlet section due to vibration generated in the running process of the vehicle, the jet flow effect generated when the air flows out from the outlet end of the air inlet section drives the valve core to move the opening of the liquid flow channel on the peripheral surface of the valve core and the liquid inlet, so that water in the water tank is blown to the front brake disc along with the air flow; when the air outlet is closed, the valve core is reset under the action of the valve core reset spring to seal the liquid inlet. According to the technical scheme, water in the water tank can also flow out together to participate in cooling when the air blowing pipe blows, so that the cooling effect on the brake disc is improved, and the outflow of cooling water is controlled through vibration generated in the running process of the vehicle.
Preferably, the cylindrical flow passage is provided with an air vent at a part of the valve core, which is far away from the conical flow passage. The reliability in the control on can be improved.
Preferably, the energy absorbing pull spring of the energy absorber for eliminating side collision of the axle housing part is sleeved on the cross rod of the energy absorber for eliminating side collision of the axle housing part. The structure is compact.
The application has the following advantages: the side collision resistance is good; the automobile body is not extruded in the side collision process within the set range; the shock absorber which stretches in the up-down direction can absorb side impact energy.
Drawings
FIG. 1 is a schematic cross-sectional view of the present application;
FIG. 2 is an enlarged schematic cross-sectional view of a control valve.
In the figure: axle housing 1, shock absorber 3, rear cross member 5, water tank 7, speed reducer mounting chamber 8, speed reducer 9, axle shaft mounting passage 10, axle shaft 11, rear wheel 12, rear brake disc 13, longitudinal bumper 19, air blowing pipe 228, opening 229, air outlet 230, slide plate 231, control valve 232, synchronizing rod 233, air outlet section 234, air inlet section 235, valve body 211, valve core 236, valve core return spring 237, cylindrical flow passage 238, conical flow passage 239, fluid outlet 240, liquid inlet 241, liquid flow passage 242, liquid inlet pipe 243, air vent 244, opening 245 of liquid flow passage on valve core circumference, axle housing part side impact energy eliminating transverse chute 310, axle housing part side impact energy eliminating energy absorbing tension spring 312 the axle housing part side impact eliminating energy device extrusion block 313, the axle housing part side impact eliminating energy device upper longitudinal shaft head 314, the axle housing part side impact eliminating energy device connecting rod 315, the axle housing part side impact eliminating energy device lower longitudinal shaft head 316, the axle housing part side impact eliminating energy device connecting block 317, the axle housing part transverse sliding groove 318, the axle housing part side impact eliminating energy device connecting block fixing mechanism 319, the axle housing part threaded through hole 320, the axle housing part jacking bolt 321, the axle housing part side impact eliminating energy device cross rod 322, the axle housing part side impact eliminating energy device piston 323, the axle housing part side impact eliminating energy device first cavity 324, the axle housing part side impact eliminating energy device second cavity 325, the axle housing part side impact eliminating energy device first section 326 and the axle housing part side impact eliminating energy device second section 327.
Detailed Description
The present application will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, a drive axle assembly for assisting in absorbing side impact energy includes an axle housing 1, a damper 3, a rear cross member 5, and a water tank 7. The middle part of the axle housing is provided with a speed reducer mounting cavity 8. A decelerator 9 is arranged in the decelerator installation cavity. The reducer mounting cavity is provided with two half shaft mounting channels 10 which penetrate through two end faces of the axle housing in a one-to-one correspondence manner. The half shaft 11 is penetrated in the half shaft installation channel. The application also comprises 2 longitudinal bumpers 19 distributed on both sides of the frame. The two ends of the rear cross beam are respectively supported at the two ends of the axle housing through a shock absorber. The longitudinal bumper is connected with the rear cross beam through a bridge shell part side collision eliminating energy device.
The axle shell part side collision eliminating energy device comprises an axle shell part side collision eliminating energy device transverse chute 310 arranged in the middle of the rear cross beam, an axle shell part side collision eliminating energy device energy absorbing tension spring 312 which is arranged in the annular chute and transversely stretches out and draws back, an axle shell part side collision eliminating energy device extrusion block 313 which is connected in the axle shell part side collision eliminating energy device transverse chute in a sliding mode, an axle shell part side collision eliminating energy device connecting rod 315 of which the upper end is hinged to the axle shell part side collision eliminating energy device extrusion block through an axle shell part side collision eliminating energy device upper longitudinal shaft head 314, and an axle shell part side collision eliminating energy device connecting block 317 of which the lower end is hinged to the axle shell part side collision eliminating energy device connecting rod through an axle shell part side collision eliminating energy device lower longitudinal shaft head 316. The axle housing is provided with an axle housing part transverse chute 318 and an axle housing part side collision eliminating energy device connecting block positioned in the axle housing part transverse chute. The axle housing is connected with an axle housing side collision eliminating energy device connecting block fixing mechanism 319 for fixing the axle housing side collision eliminating energy device connecting block in the axle housing transverse chute. The axle housing part side collision eliminating energy device connecting block fixing mechanism comprises an axle housing part threaded through hole 320 arranged on the side wall of the axle housing part transverse chute, and an axle housing part jacking bolt 321 which is in threaded connection with the axle housing part side collision eliminating energy device connecting block in the axle housing part threaded through hole and compresses the axle housing part side collision eliminating energy device connecting block in the front side chute. The connecting rod of the bridge shell side collision eliminating energy device is inclined in a state that the lower end of the connecting rod is far away from the upper end of the middle part of the bridge shell and faces the middle part of the rear cross beam. The bridge shell side impact eliminating energy device extrusion block is connected with the longitudinal bumper through a bridge shell side impact eliminating energy device cross bar 322. The bridge shell part side collision absorbing energy device extrusion block is fixedly connected with one end of the bridge shell part side collision eliminating energy device energy absorbing tension spring, and the other end of the bridge shell part side collision eliminating energy device energy absorbing tension spring is fixed with the rear cross beam. The energy absorbing pull spring of the energy absorber for eliminating side collision of the axle housing part is sleeved on the cross rod of the energy absorber for eliminating side collision of the axle housing part. When the extrusion block of the bridge shell part side collision absorbing energy device slides towards the middle part of the rear cross beam, the bridge shell part side collision eliminating energy device energy absorbing tension spring is driven to deform and absorb energy. The bridge shell side collision eliminating energy device further comprises a bridge shell side collision eliminating energy device rigidity adjusting mechanism. The rigidity adjusting mechanism of the bridge shell part side collision eliminating energy device comprises a bridge shell part side collision eliminating energy device transverse sliding cavity and a bridge shell part side collision eliminating energy device piston 323, wherein the bridge shell part side collision eliminating energy device transverse sliding cavity is arranged in the rear cross beam, and the bridge shell part side collision eliminating energy device piston 323 is connected in the bridge shell part side collision eliminating energy device transverse sliding cavity in a sliding sealing mode. The axle housing portion side impact energy meter piston divides the axle housing portion side impact energy meter cross slide cavity into an axle housing portion side impact energy meter first cavity 324 and an axle housing portion side impact energy meter second cavity 325. The second cavity of the bridge shell part side collision eliminating energy device is positioned between the first cavity of the bridge shell part side collision eliminating energy device and the extrusion block of the bridge shell part side collision eliminating energy device. The first cavity of the bridge shell part side collision eliminating energy device is provided with an inflation valve (when in use, the first cavity of the bridge shell part side collision eliminating energy device is inflated and deflated through the inflation valve to change the air pressure) and the air pressure in the first cavity of the bridge shell part side collision eliminating energy device is positive pressure. The axle housing portion side impact energy meter cross bar includes an axle housing portion side impact energy meter first section 326 and an axle housing portion side impact energy meter second section 327. The first section of the bridge shell part side collision eliminating energy device connects the longitudinal bumper with the bridge shell part side collision eliminating energy device piston, and the second section of the bridge shell part side collision eliminating energy device connects the bridge shell part side collision eliminating energy device piston with the bridge shell part side collision eliminating energy device extrusion block.
The bridge shell side collision eliminating energy device also comprises a brake cooling mechanism. The brake cooling mechanism comprises an air blowing pipe 228, an opening 229 arranged on the side wall of the front shaft part side collision eliminating energy device transverse sliding cavity, a sliding plate 231 which is connected in the front shaft part side collision eliminating energy device transverse sliding cavity in a sliding sealing mode and seals the opening, and is provided with an air outlet 230, and a control valve 232. The skateboard is connected with the front shaft side collision eliminating energy device connecting block through a synchronous rod 233. When the air pressure of the first cavity of the front shaft side collision eliminating energy device is set to be in reset, the piston of the front shaft side collision eliminating energy device seals the air outlet. The outlet duct includes an outlet section 234 and an inlet section 235. The control valve includes a valve body 211, a spool 236, and a spool return spring 237. The valve body is internally provided with a cylindrical flow passage 238, a conical flow passage 239 with a large diameter end butted with the cylindrical flow passage, a fluid outlet 240 butted with a small diameter end of the conical flow passage and a liquid inlet 241 arranged on the cylindrical flow passage. The inlet end and the fluid outlet of the air outlet section are connected together, and the outlet end faces the front brake disc. The inlet end of the air inlet section is connected with the air outlet, the outlet end is positioned in the fluid outlet, and the opening direction is far away from the direction of the conical surface flow channel. The valve core is connected in the cylindrical flow channel in a sliding and sealing way and seals the liquid inlet. The valve element is provided with a flow channel 242 penetrating the peripheral surface from the end surface facing one end of the conical flow channel and communicating the liquid inlet with the conical flow channel. The liquid inlet is connected with the water tank through a liquid inlet pipe 243. The jet flow effect generated when the outlet end of the air inlet section flows out of the air drives the valve core to move to an opening 245 of the liquid flow channel on the periphery of the valve core, and the opening 245 is communicated with the liquid inlet. The part of the cylindrical flow channel, which is positioned at one side of the valve core, which is far away from the conical flow channel, is provided with an air vent 244. The synchronous rod comprises a sleeve with the upper end connected with the sliding plate and a rod body with the upper end penetrating through the lower end of the sleeve, and the lower end of the rod body is connected with the connecting block of the side collision eliminating energy device of the axle housing.
Claims (6)
1. The driving axle assembly comprises an axle housing and a rear cross beam, wherein two ends of the rear cross beam are supported at two ends of the axle housing through shock absorbers; the vehicle is characterized by further comprising 2 longitudinal bumpers distributed on two sides of the vehicle frame, wherein the longitudinal bumpers are connected with the rear cross beam through a bridge shell part side collision eliminating energy device; the axle housing part side collision eliminating energy device comprises an axle housing part side collision eliminating energy device transverse chute arranged in the middle of the rear cross beam, an axle housing part side collision eliminating energy device energy absorbing tension spring arranged in the annular chute and extending along the transverse direction, an axle housing part side collision eliminating energy device extrusion block in sliding connection with the inside of the axle housing part side collision eliminating energy device transverse chute, an axle housing part side collision eliminating energy device extrusion block hinged at the upper end of the axle housing part side collision eliminating energy device extrusion block through an upper longitudinal shaft head of the axle housing part, and an axle housing part side collision eliminating energy device connecting rod hinged at the lower end of the axle housing part side collision eliminating energy device connecting rod through an lower longitudinal shaft head of the axle housing part side collision eliminating energy device, wherein the axle housing part side collision eliminating energy device connecting block is connected with the axle housing part side collision eliminating energy device energy absorbing connecting block in a sliding manner when the lower end of the axle housing part side collision eliminating energy device extrusion block is far away from the middle upper end of the shell and faces the middle of the front cross beam, and the axle housing part side collision eliminating energy device extrusion block is connected with the energy absorber side absorber extrusion block; the energy absorbing pull spring of the energy absorber for eliminating side collision of the axle housing part is sleeved on the cross rod of the energy absorber for eliminating side collision of the axle housing part.
2. The drive axle assembly of claim 1, wherein the axle housing part side impact energy absorber further comprises an axle housing part side impact energy absorber rigidity adjusting mechanism, the axle housing part side impact energy absorber rigidity adjusting mechanism comprises an axle housing part side impact energy absorber transverse cavity arranged in the rear cross beam and an axle housing part side impact energy absorber piston in sliding sealing connection with the axle housing part side impact energy absorber transverse cavity, the axle housing part side impact energy absorber piston divides the axle housing part side impact energy absorber transverse cavity into an axle housing part side impact energy absorber first cavity and an axle housing part side impact energy absorber second cavity, the axle housing part side impact energy absorber second cavity is positioned between the axle housing part side impact energy absorber first cavity and the axle housing part side impact energy absorber extrusion block, the first cavity of the bridge shell part side collision eliminating energy device is provided with an inflation valve, the air pressure in the first cavity of the bridge shell part side collision eliminating energy device is positive pressure, the bridge shell part side collision eliminating energy device cross rod comprises a first bridge shell part side collision eliminating energy device section and a second bridge shell part side collision eliminating energy device section, the first bridge shell part side collision eliminating energy device section connects the longitudinal bumper with the bridge shell part side collision eliminating energy device piston, the second bridge shell part side collision eliminating energy device section connects the bridge shell part side collision eliminating energy device piston with the bridge shell part side collision eliminating energy device extrusion block, the bridge shell is provided with a bridge shell part transverse chute and a bridge shell part side collision eliminating energy device connecting block positioned in the bridge shell part transverse chute, the axle shell is connected with a bridge shell side collision eliminating energy device connecting block fixing mechanism for fixing the bridge shell side collision eliminating energy device connecting block in the bridge shell transverse chute.
3. The drive axle assembly for assisting in absorbing side impact energy through a shock absorber in side impact generation according to claim 2, wherein the axle housing part side impact energy eliminating connecting block fixing mechanism comprises an axle housing part threaded through hole arranged on the side wall of the axle housing part transverse chute and an axle housing part jacking bolt which is in threaded connection with the axle housing part threaded through hole and compresses the axle housing part side impact energy eliminating connecting block in the front side chute.
4. The drive axle assembly for assisting in absorbing side impact energy through a shock absorber during side impact generation according to claim 2, wherein the axle housing part side impact energy eliminating device further comprises a brake cooling mechanism, a rear brake disc is connected to the half axle, the brake cooling mechanism comprises an air blowing pipe with an outlet end facing the rear brake disc, an opening arranged on the side wall of a transverse cavity of the axle housing part side impact energy eliminating device, and a sliding plate which is connected in the transverse cavity of the axle housing part side impact energy eliminating device in a sliding and sealing manner and is provided with an air outlet, the sliding plate is connected with an axle housing part side impact energy eliminating device connecting block through a synchronous rod, the axle housing part side impact energy eliminating device piston is blocked off the air outlet when the air pressure of a first cavity of the axle housing part side impact energy eliminating device is in a setting reset state, the inlet end of the air blowing pipe is connected with the air outlet, the synchronous rod comprises a sleeve with the upper end connected with the sliding plate and a rod body with the upper end penetrating through the lower end of the sleeve, and the lower end of the rod body is connected with the axle housing part side impact energy eliminating device connecting block.
5. The drive axle assembly for assisting in absorbing side impact energy through a shock absorber during side impact according to claim 4, further comprising a water tank, wherein the axle housing part side impact energy absorbing device further comprises a control valve, the control valve comprises a valve body, a valve core and a valve core reset spring, the air outlet pipe comprises an air outlet section and an air inlet section, a cylindrical flow passage, a conical flow passage, a fluid outlet and a liquid inlet are arranged on the cylindrical flow passage, the cylindrical flow passage is arranged in the valve body, the conical flow passage is butted with the large diameter end of the cylindrical flow passage, the fluid outlet is butted with the small diameter end of the conical flow passage, the inlet end of the air outlet section is connected with the fluid outlet, the outlet end of the air inlet section is connected with the air outlet, the outlet end of the air inlet section is positioned in the fluid outlet, the opening direction is far away from the conical flow passage, the valve core is connected in the cylindrical flow passage in a sliding sealing manner and seals the liquid inlet, the valve core is provided with a liquid flow passage which is communicated with the liquid inlet and the conical flow passage from the peripheral surface and is connected with the water tank through the liquid inlet pipe; and the jet flow effect generated when the outlet end of the air inlet section flows out of the air drives the valve core to move, and the opening of the liquid flow channel positioned on the peripheral surface of the valve core is communicated with the liquid inlet.
6. The drive axle assembly for assisting in absorbing side impact energy through a shock absorber during side impact according to claim 5, wherein the cylindrical flow passage is provided with ventilation holes at a part of the valve core, which is far away from the conical flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111090495.8A CN113619516B (en) | 2020-08-03 | 2020-08-03 | Driving axle assembly capable of assisting in absorbing side impact energy through shock absorber during side impact |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768468.0A CN112026690B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge frame with automobile body shock absorber for absorbing side impact energy |
| CN202111090495.8A CN113619516B (en) | 2020-08-03 | 2020-08-03 | Driving axle assembly capable of assisting in absorbing side impact energy through shock absorber during side impact |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010768468.0A Division CN112026690B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge frame with automobile body shock absorber for absorbing side impact energy |
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| Publication Number | Publication Date |
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| CN113619516A CN113619516A (en) | 2021-11-09 |
| CN113619516B true CN113619516B (en) | 2023-08-18 |
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| CN202010768468.0A Active CN112026690B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge frame with automobile body shock absorber for absorbing side impact energy |
| CN202111090495.8A Active CN113619516B (en) | 2020-08-03 | 2020-08-03 | Driving axle assembly capable of assisting in absorbing side impact energy through shock absorber during side impact |
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| CN202010768468.0A Active CN112026690B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge frame with automobile body shock absorber for absorbing side impact energy |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE102014206674A1 (en) * | 2014-04-07 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Body for a motor vehicle |
| CN107554459A (en) * | 2017-10-20 | 2018-01-09 | 杭州容大智造科技有限公司 | Anti-side touches shape electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7051852B2 (en) * | 2002-07-26 | 2006-05-30 | Kevin Maret | Suspension restraint devices |
| CN102490788B (en) * | 2011-11-28 | 2014-09-17 | 浙江吉利汽车研究院有限公司 | Elastic longitudinal beam and automobile provided with same |
| CN202966207U (en) * | 2012-12-21 | 2013-06-05 | 张天立 | Automotive anti-collision device |
| US10343716B2 (en) * | 2017-04-03 | 2019-07-09 | Robby Gordon | Universal axle-hub assembly |
| CN107253472B (en) * | 2017-05-23 | 2019-05-03 | 周毅 | New-energy electric vehicle |
| CN109204462B (en) * | 2017-06-30 | 2021-12-07 | 比亚迪股份有限公司 | Vehicle body structure and vehicle |
| CN212980130U (en) * | 2020-08-03 | 2021-04-16 | 南平市建阳区汽车锻压件厂 | Automobile bridge with automobile body shock absorber for absorbing side impact energy |
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2020
- 2020-08-03 CN CN202010768468.0A patent/CN112026690B/en active Active
- 2020-08-03 CN CN202111090495.8A patent/CN113619516B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014206674A1 (en) * | 2014-04-07 | 2015-10-08 | Bayerische Motoren Werke Aktiengesellschaft | Body for a motor vehicle |
| CN107554459A (en) * | 2017-10-20 | 2018-01-09 | 杭州容大智造科技有限公司 | Anti-side touches shape electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112026690B (en) | 2021-10-29 |
| CN113619516A (en) | 2021-11-09 |
| CN112026690A (en) | 2020-12-04 |
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Address after: 354200 No. 176 Renmin Road, Shui Ji Town, Jianyang District, Nanping, Fujian Applicant after: Fujian Tiechima Light Axle Co.,Ltd. Address before: 354209 No. 176 Renmin Road, Shui Ji Town, Jianyang District, Nanping, Fujian Applicant before: NANPING JIANYANG AUTO PRESS FORGING FACTORY |