CN111994028B - Drive axle assembly with shock absorber assisting in absorbing side impact energy - Google Patents
Drive axle assembly with shock absorber assisting in absorbing side impact energy Download PDFInfo
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- CN111994028B CN111994028B CN202010767504.1A CN202010767504A CN111994028B CN 111994028 B CN111994028 B CN 111994028B CN 202010767504 A CN202010767504 A CN 202010767504A CN 111994028 B CN111994028 B CN 111994028B
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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
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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
- B60B35/16—Axle housings
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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
- B60B35/16—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
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vibration Dampers (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention relates to a drive axle assembly with a shock absorber assisting in absorbing side impact 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 invention also comprises 2 longitudinal bumpers distributed on two sides of the frame, and the longitudinal bumpers are connected with the rear cross beam through the axle housing side impact energy eliminating device. The invention 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 automobile is generated.
Description
Technical Field
The invention relates to a drive axle of an automobile, in particular to a drive axle assembly with a shock absorber assisting in absorbing side impact 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 front axle, steering axle) of the automobile, wherein the driving axle and the front axle are connected with wheels at two ends, and the frame is connected with the frame through a suspension mechanism.
The drive axle is composed of a main speed reducer, a differential mechanism, a half shaft and an axle housing. The main speed reducer, the differential 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 chinese patent publication No. 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 the reduction gear installation section is equipped with the reduction gear installation cavity, and the semi-axis installation section is equipped with the semi-axis installation passageway that begins to extend and communicate the reduction gear installation cavity along the extending direction of semi-axis installation section from the terminal surface of wheel connector. When the speed reducer is used, the speed reducer is installed in the speed reducer installation cavity, and the two half shafts penetrate through the half shaft installation channel and are connected with the wheel to drive the wheel (rear wheel).
The existing automobile drive axle has the following defects: the side impact prevention capability is poor, energy absorption is realized through deformation and collapse of the frame when side impact occurs, and the deformation and collapse of the frame are easy to damage passengers.
Disclosure of Invention
The invention provides a drive axle assembly capable of absorbing side impact energy without the need of collapsing and deforming a frame during side impact, which is used for solving the problem of poor safety caused by the fact that an existing automobile needs to collapse to absorb energy during side impact.
The technical problem is solved by the following technical scheme: a drive axle assembly with a shock absorber assisting in absorbing side impact energy 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 penetrating through two end faces of the axle housing in a one-to-one correspondence mode are arranged in the speed reducer installation cavity, half axles penetrate through the half axle installation channels, and the outer ends of the half axles are connected with rear wheels; the automobile frame is characterized by further comprising 2 longitudinal bumpers distributed on two sides of the automobile frame, wherein the longitudinal bumpers are connected with the rear cross beam through an axle housing side collision energy eliminating device; the energy device is bumped to bridge shell portion side that disappears including setting up axle shell portion in the rear cross beam middle part side that disappears bumps energy device horizontal chute, set up in annular chute along the axle shell portion side that disappears of horizontal flexible bump energy device energy-absorbing extension spring, sliding connection the bridge shell portion side that disappears in the energy device horizontal chute is bumped to bridge shell portion side that disappears bumps energy device extrusion piece, the upper end bumps energy device connecting rod through bridge shell portion side that disappears on the energy device is bumped to bridge shell portion side that disappears through longitudinal spindle nose hinge on the energy device extrusion piece of bridge shell portion side that disappears and bumps energy device connecting block through bridge shell portion side that disappears and hinges the bridge shell portion side that disappears on the lower extreme of energy device connecting rod that disappears through longitudinal spindle nose under the energy device that disappears, the bridge shell portion side that disappears bumps energy device connecting block with the axle shell portion side that disappears links together with the axle shell portion, the bridge shell portion side that disappears bumps energy device connecting rod with the lower extreme keeps away from the middle part upper end of axle shell portion and inclines towards the state in the middle part of front cross beam middle part, the utility model discloses a bumper beam, including bridge shell portion, energy ware extrusion piece, energy ware energy-absorbing extension spring, bridge shell portion, energy ware extrusion piece, bridge shell portion, energy ware energy-absorbing extension spring, bridge shell portion, energy ware extrusion piece, energy ware energy-absorbing extension spring, energy ware, energy-absorbing extension spring, energy-absorbing. When the automobile is subjected to side impact, the side impact energy pushes the longitudinal bumper to drive the axle shell part side impact energy eliminating device connecting block to move inwards, the axle shell part side impact energy eliminating device connecting block pulls the axle shell part side impact energy eliminating device energy absorbing tension spring to absorb the side impact energy, meanwhile, the rear cross beam (one part of the automobile frame) moves downwards under the limiting action of the axle shell part side impact energy eliminating device connecting rod, and the automobile frame moves downwards to enable the shock absorber (the shock absorber supporting the automobile frame on the automobile stretches up and down to absorb energy and resist shock) to contract to absorb energy. Therefore, the technical scheme of the invention ensures that the shock absorber for supporting the frame not only can resist the jolt generated in the running process of the vehicle, but also can absorb the side impact energy when the vehicle is subjected to side impact. According to the technical scheme, when jolting vibration is received when a vehicle runs, the vehicle frame generates up-down direction separation relative to the axle housing, and the axle housing part side impact energy eliminating energy device connecting rod can drive the axle housing part side impact energy device connecting rod extrusion block to move along the horizontal direction to enable the axle housing part side impact energy device energy absorption tension spring to absorb energy and reduce vibration when the shock absorber absorbs energy and reduces vibration.
As preferred, the energy ware is bumped to bridge shell portion side that disappears still includes the energy ware rigidity guiding mechanism is bumped to bridge shell portion side that disappears, energy ware rigidity guiding mechanism is bumped to bridge shell portion side that disappears including setting up the energy ware sideslip chamber is bumped to bridge shell portion side in the rear cross beam and sliding seal connects in the energy ware piston is bumped to bridge shell portion side that disappears in the energy ware sideslip chamber is bumped to bridge shell portion side, the energy ware piston is bumped to bridge shell portion side that disappears with the energy ware sideslip chamber is split into first cavity of the energy ware is bumped to bridge shell portion side that disappears and energy ware second cavity is bumped to bridge shell portion side that disappears, the energy ware second cavity is located between the first cavity of the energy ware is bumped to bridge shell portion side that disappears and the energy ware extrusion piece is bumped to bridge shell portion side, the first cavity of the energy ware that disappears to bridge shell portion side that disappears is equipped with the inflation valve and the atmospheric pressure in the first cavity of the energy ware is bumped to bridge shell portion side that disappears is the malleation, the axle housing portion side of disappearing bumps energy ware horizontal pole and includes that the axle housing portion disappears the side and bumps energy ware first section and axle housing portion and disappear the side and bump energy ware second section, the axle housing portion disappears the side and bump energy ware first section with vertical bumper is with the axle housing portion side of disappearing bumps energy ware piston and links together, the axle housing portion side of disappearing bumps energy ware second section will the axle housing portion side of disappearing bumps energy ware piston and bumps energy ware extrusion piece with axle housing portion and links together, be equipped with axle housing portion horizontal chute on the axle housing with the axle housing portion side of disappearing bumps energy ware connecting block and is located in the axle housing portion horizontal chute, be connected with on the axle housing portion and bump energy ware connecting block fixed establishment with the axle housing portion side of disappearing that the energy ware connecting block was fixed in axle housing portion horizontal chute. During the use, aerify the in-process that changes the bridge shell portion and disappear the atmospheric pressure in the side collision energy ware first cavity and realize adjusting rigidity through eliminating the side collision energy ware first cavity for the bridge shell portion, the fixed action that the energy ware connecting block was bumped to the bridge shell portion was loosened to bridge shell portion side collision energy ware connecting block fixed establishment to axle shell portion, thereby the atmospheric pressure change in the first cavity of energy ware was bumped to the side collision energy ware of axle shell portion disappears makes the initial position change that the bridge shell portion disappears the side collision energy ware extrusion piece bump the initial energy storage of energy ware energy-absorbing extension spring to the realization disappears to the bridge shell portion, thereby play the effect of the rigidity when changing the vehicle and carrying out the damping. After adjustment, the side impact energy eliminating energy of the axle housing part is fixed on the axle housing again. The damping rigidity of the existing automobile after leaving the factory cannot be changed, and the damping rigidity of the automobile after leaving the factory can be changed without changing the height of the automobile by the technical scheme. Root of herbaceous plant
Preferably, the fixing mechanism for the energy device connecting block is arranged on the side wall of the horizontal chute of the axle housing part, and the fixing mechanism for the energy device connecting block is arranged on the side wall of the horizontal chute of the axle housing part.
As preferred, the bridge shell portion energy ware that disappears and bump to side still includes brake cooling body, be connected with back brake disc on the semi-axis, brake cooling body includes the exit end orientation the gas blow pipe of back brake disc, set up and be in the bridge shell portion disappears and bumps opening and sliding seal on the lateral wall in energy ware sideslip chamber and connect and live in the bridge shell portion disappears and bumps the closure in the energy ware sideslip chamber the open-ended slide plate of establishing the gas outlet, the slide plate through the synchronizing bar with the bridge shell portion disappears and bumps the energy ware connecting block and link together, the bridge shell portion disappears and bumps the air pressure of the first cavity of energy ware when setting for resetting the bridge shell portion disappears and bump the energy ware piston shutoff in the gas outlet, the entrance point of gas blow pipe with the gas outlet is connected, the synchronizing bar includes the upper end with sleeve pipe and the body of the upper end that the slide plate linked together wear to establish in the sheathed tube lower extreme, the lower end of the rod body is connected with the bridge shell part side impact prevention energy device connecting block. The vibration received by the wheels in the running process causes the piston seal of the side impact energy eliminating device of the axle shell part to move and reset, and the moving distance reaches the state that when the air outlet is exposed, the compressed air in the first cavity of the side impact energy eliminating device of the axle shell part flows out through the air blowing pipe and blows to the rear brake disc to cool the rear brake disc. According to the technical scheme, the vibration energy can be utilized to control the outflow of gas so as to cool the brake disc to prevent the brake disc from being overheated to influence the braking effect.
The invention also comprises a water tank, the bridge shell part side-impact energy eliminating device also comprises a control valve, the control valve comprises a valve body, a valve core and a valve core reset spring, the air blowing pipe comprises an air outlet section and an air inlet section, the valve body is internally provided with a cylindrical runner, a conical runner with a large-diameter end butted with the cylindrical runner, a fluid outlet butted with a small-diameter end of the conical runner and a liquid inlet arranged on the cylindrical runner, the inlet end of the air outlet section is connected with the fluid outlet, the outlet end of the air outlet section faces the rear brake disc, the inlet 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 of the air inlet section is far away from the direction of the conical runner, the valve core is connected in the cylindrical runner in a sliding and sealing manner and seals the liquid inlet, the valve core is provided with a liquid flow channel which is communicated with the conical runner and runs through the circumferential surface from the end face facing one end of the conical runner, the liquid inlet is connected with the water tank through a liquid inlet pipe; and an opening of the valve core moving liquid flow channel, which is positioned on the peripheral surface of the valve core, is communicated with the liquid inlet under the action of jet flow generated when gas flows out from the outlet end of the gas inlet section. When the vehicle vibrates in the running process to enable the gas of the first cavity of the energy device for eliminating side collision of the front shaft part to flow out through the gas outlet and the gas inlet section, the jet flow effect generated when the gas flows out from the outlet end of the gas inlet section drives the valve core to move the liquid flow channel to form an opening and a liquid inlet on the peripheral surface of the valve core, so that the water in the water tank is blown to a front brake disc along with the gas 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. This technical scheme makes the water in the water tank also can flow out together and participate in the cooling and improve the cooling effect to the brake disc when the gas blow pipe blows, and the outflow of cooling water is also controlled through the vibration that the vehicle travel in-process produced.
Preferably, the part of the cylindrical surface flow channel, which is positioned on one side of the valve core far away from the conical surface flow channel, is provided with an air hole. The reliability of the control during opening can be improved.
Preferably, the energy absorption tension spring sleeve of the energy absorber for eliminating side impact of the axle housing part is arranged on the cross rod of the energy absorber for eliminating side impact of the axle housing part. The structure is compact and good.
The invention has the following advantages: the side impact resistance is good; the vehicle body is not extruded in the side collision process within the set range; the shock absorber that extends and contracts in the vertical direction can absorb side impact energy.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is an enlarged cross-sectional schematic view of the control valve.
In the figure: axle housing 1, shock absorber 3, rear cross beam 5, water tank 7, speed reducer installation cavity 8, speed reducer 9, half axle installation channel 10, half axle 11, rear wheel 12, rear brake disc 13, longitudinal bumper 19, blow 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 runner 238, conical runner 239, fluid outlet 240, fluid inlet 241, fluid flow channel 242, fluid inlet pipe 243, air vent 244, opening 245 of fluid flow channel on valve core periphery, axle housing side impact energy absorber transverse chute 310, axle housing side impact energy absorber tension spring 312, axle housing side impact energy absorber extrusion block 313, axle housing side impact energy absorber upper longitudinal direction 314, axle housing side impact energy absorber connecting rod 315, axle housing side impact energy absorber lower longitudinal axis 316, rear brake energy absorber lower axis, The energy device comprises an energy device connecting block 317 for eliminating side impact of an axle housing part, an axle housing part transverse sliding groove 318, an energy device connecting block fixing mechanism 319 for eliminating side impact of the axle housing part, an axle housing part threaded through hole 320, an axle housing part jacking bolt 321, an axle housing part side impact eliminating energy device cross rod 322, an axle housing part side impact eliminating energy device piston 323, an axle housing part side impact eliminating energy device first cavity 324, an axle housing part side impact eliminating energy device second cavity 325, an axle housing part side impact eliminating energy device first section 326 and an axle housing part side impact eliminating energy device second section 327.
Detailed Description
The present invention will be described in detail with reference to the following drawings and examples.
Referring to fig. 1 and 2, a drive axle assembly with a shock absorber to assist in absorbing side impact energy includes an axle housing 1, a shock absorber 3, a rear cross member 5, and a water tank 7. And a speed reducer mounting cavity 8 is arranged in the middle of the axle housing. The reducer 9 is arranged in the reducer mounting 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 arranged in the half shaft mounting channel in a penetrating way. The invention 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 the axle housing part side impact energy eliminating device.
The energy device for eliminating side impact of the bridge shell comprises a transverse sliding chute 310 of the energy device for eliminating side impact of the bridge shell, a transverse telescopic energy device energy absorption tension spring 312 of the energy device for eliminating side impact of the bridge shell, an extrusion block 313 of the energy device for eliminating side impact of the bridge shell, a connecting rod 315 of the energy device for eliminating side impact of the bridge shell, the upper end of which is hinged on the extrusion block of the energy device for eliminating side impact of the bridge shell through an upper longitudinal shaft head 314 of the energy device for eliminating side impact of the bridge shell, and a connecting block 317 of the energy device for eliminating side impact of the bridge shell, which is hinged on the lower end of the connecting rod of the energy device for eliminating side impact of the bridge shell through a lower longitudinal shaft head 316 of the energy device for eliminating side impact of the bridge shell. Be equipped with the horizontal spout 318 of axle housing portion and eliminate the side and bump the energy ware connecting block and be located the horizontal spout of axle housing portion on the axle housing. The axle housing is connected with an axle housing side impact energy absorber connecting block fixing mechanism 319 which fixes the axle housing side impact energy absorber connecting block in the axle housing side sliding groove. The fixing mechanism for the connecting block of the energy device for eliminating side impact of the bridge shell comprises a threaded through hole 320 of the bridge shell on the side wall of the transverse sliding groove of the bridge shell, and a jacking bolt 321 of the bridge shell, which is connected in the threaded through hole of the bridge shell and used for eliminating side impact of the bridge shell and is used for compressing the connecting block of the energy device in the sliding groove of the front side part. The axle housing part side impact energy eliminating device connecting rod 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 axle housing and faces the middle part of the rear cross beam. The bridge shell side impact energy eliminating device extrusion block is connected with the longitudinal bumper through a bridge shell side impact energy eliminating device cross bar 322. The side impact energy eliminating energy device extrusion block of the axle housing part and one end of the side impact energy device energy absorbing tension spring of the axle housing part are fixedly connected with the other end of the side impact energy device energy absorbing tension spring of the axle housing part and fixed with the rear cross beam. The bridge shell side impact energy eliminating device energy absorption tension spring is sleeved on the bridge shell side impact energy eliminating device cross rod. When the extrusion block of the side impact prevention energy device of the bridge shell slides towards the middle part of the rear cross beam, the energy absorption tension spring of the side impact prevention energy device of the bridge shell deforms to absorb energy. The bridge shell side impact energy eliminating device further comprises a rigidity adjusting mechanism of the bridge shell side impact energy eliminating device. The rigidity adjusting mechanism of the energy device for eliminating side impact of the bridge shell comprises a cross sliding cavity of the energy device for eliminating side impact of the bridge shell arranged in the rear cross beam and a piston 323 of the energy device for eliminating side impact of the bridge shell, wherein the piston 323 is connected in the cross sliding cavity of the energy device for eliminating side impact of the bridge shell in a sliding and sealing mode. The axle housing side impact energy elimination energy device piston divides the axle housing side impact energy elimination energy device cross slide cavity into an axle housing portion side impact energy elimination energy device first cavity 324 and an axle housing portion side impact energy elimination energy device second cavity 325. The second cavity of the energy absorber for eliminating side impact of the bridge shell part is positioned between the first cavity of the energy absorber for eliminating side impact of the bridge shell part and the extrusion block of the energy absorber for eliminating side impact of the bridge shell part. The first cavity of the energy device for eliminating side impact of the axle housing part is provided with an inflation valve (when in use, the first cavity of the energy device for eliminating side impact of the axle housing part is inflated and deflated through the inflation valve so as to change air pressure), and the air pressure in the first cavity of the energy device for eliminating side impact of the axle housing part is positive pressure. The axle housing side impact energy dissipating beam includes an axle housing side impact energy dissipating first section 326 and an axle housing side impact energy dissipating second section 327. The first section of the energy device for eliminating side impact of the axle housing part connects the longitudinal bumper with the piston of the energy device for eliminating side impact of the axle housing part, and the second section of the energy device for eliminating side impact of the axle housing part connects the piston of the energy device for eliminating side impact of the axle housing part with the extrusion block of the energy device for eliminating side impact of the axle housing part.
The bridge shell side impact energy eliminating device further comprises a brake cooling mechanism. The brake cooling mechanism comprises an air blow pipe 228, an opening 229 arranged on the side wall of the front shaft part side impact prevention energy device transverse sliding cavity, a sliding plate 231 which is connected with the front shaft part side impact prevention energy device transverse sliding cavity in a sliding and sealing mode and is provided with an air outlet 230 and a control valve 232, wherein the air outlet 230 is sealed and connected with the front shaft part side impact prevention energy device transverse sliding cavity. The slide plate is connected with the front shaft side impact-eliminating energy device connecting block through a synchronizing rod 233. When the air pressure of the first cavity of the front shaft part side impact eliminating energy device is in the set reset state, the front shaft part side impact eliminating energy device piston blocks the air outlet. The gas sparge pipe 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 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 of the air outlet section is connected with the fluid outlet, 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 of the air inlet section is positioned in the fluid outlet, and the opening direction of the air inlet section is far away from the direction of the conical surface flow channel. The valve core is connected in the cylindrical surface flow passage in a sliding and sealing mode and seals the liquid inlet. The valve core is provided with a liquid flow channel 242 which penetrates through the peripheral surface from the end surface facing one end of the conical surface flow channel and is used for communicating the liquid inlet with the conical surface flow channel. The liquid inlet is connected with the water tank through a liquid inlet pipe 243. The valve core is driven by the jet effect generated when gas flows out from the outlet end of the gas inlet section to move to an opening 245 of the liquid flow channel on the peripheral surface of the valve core to be communicated with the liquid inlet. The part of the cylindrical surface flow passage, which is positioned at one side of the valve core far away from the conical surface flow passage, is provided with an air hole 244. The synchronizing bar comprises a sleeve with the upper end connected with the sliding plate and a bar body with the upper end arranged in the lower end of the sleeve in a penetrating manner, and the lower end of the bar body is connected with the bridge shell part side impact energy eliminating device connecting block.
Claims (5)
1. A drive axle assembly with a shock absorber assisting in absorbing side impact energy 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 penetrating through two end faces of the axle housing in a one-to-one correspondence mode are arranged in the speed reducer installation cavity, half axles penetrate through the half axle installation channels, and the outer ends of the half axles are connected with rear wheels; the automobile frame is characterized by further comprising 2 longitudinal bumpers distributed on two sides of the automobile frame, wherein the longitudinal bumpers are connected with the rear cross beam through an axle housing side collision energy eliminating device; the energy device is bumped to bridge shell portion side that disappears including setting up axle shell portion in the rear cross beam middle part side that disappears bumps energy device horizontal chute, set up in annular chute along the axle shell portion side that disappears of horizontal flexible bump energy device energy-absorbing extension spring, sliding connection the bridge shell portion side that disappears in the energy device horizontal chute is bumped to bridge shell portion side that disappears bumps energy device extrusion piece, the upper end bumps energy device connecting rod through bridge shell portion side that disappears on the energy device is bumped to bridge shell portion side that disappears through longitudinal spindle nose hinge on the energy device extrusion piece of bridge shell portion side that disappears and bumps energy device connecting block through bridge shell portion side that disappears and hinges the bridge shell portion side that disappears on the lower extreme of energy device connecting rod that disappears through longitudinal spindle nose under the energy device that disappears, the bridge shell portion side that disappears bumps energy device connecting block with the axle shell portion side that disappears links together with the axle shell portion, the bridge shell portion side that disappears bumps energy device connecting rod with the lower extreme keeps away from the middle part upper end of axle shell portion and inclines towards the state in the middle part of front cross beam middle part, bridge shell portion side-collision energy ware extrusion piece disappears the side-collision energy ware extrusion piece through bridge shell portion and bumps energy ware horizontal pole with vertical bumper links together, bridge shell portion side-collision energy ware extrusion piece disappears with bridge shell portion side-collision energy ware energy absorption extension spring's one end links together, bridge shell portion side-collision energy ware extrusion piece drives when sliding towards the middle part of rear beam bridge shell portion side-collision energy ware energy absorption extension spring deformation and energy-absorbing, bridge shell portion side-collision energy ware disappears still includes bridge shell portion side-collision energy ware rigidity guiding mechanism, bridge shell portion side-collision energy ware rigidity guiding mechanism disappears and bumps energy ware lateral sliding cavity and sliding seal connection including setting up the bridge in the rear beam bridge shell portion side-collision energy ware piston in the bridge shell portion side-collision energy ware lateral cavity, bridge shell portion side-collision energy ware piston will bridge shell portion side-collision energy ware lateral cavity is broken into bridge shell portion side-collision energy ware first cavity and energy ware second cavity that disappears The body, the bridge shell portion disappears the side and bumps energy ware second cavity and be located the bridge shell portion disappears the side and bump between the energy ware extrusion piece with the axle housing portion and disappear the side, the bridge shell portion disappears the side and bumps energy ware first cavity and be equipped with the inflation valve and the air pressure that the axle housing portion disappears the side and bump in the energy ware first cavity is the malleation, the bridge shell portion disappears the side and bumps energy ware horizontal pole and includes the bridge shell portion disappears the side and bump energy ware first section and the axle housing portion disappears the side and bump energy ware second section, the bridge shell portion disappears the side and bumps energy ware first section with vertical bumper with the bridge shell portion disappears the side and bumps energy ware piston and links together, the bridge shell portion disappears the side and bumps energy ware piston and links together with the axle housing portion disappears the side and bump energy ware extrusion piece, be equipped with axle housing portion lateral slide groove and the bridge shell portion disappears the side and bump energy ware connecting block and be located in the axle housing portion lateral slide groove, be connected with on the axle housing and disappear the side and bump the bridge shell portion of energy device connecting block and fix the bridge shell portion in the horizontal spout of axle housing portion and disappear the side and bump energy device connecting block fixed establishment, the bridge shell portion disappears the side and bumps energy device energy-absorbing extension spring cover and establish the bridge shell portion disappears the side and bumps on the energy device horizontal pole.
2. The drive axle assembly assisting in absorbing side impact energy of the shock absorber as claimed in claim 1, wherein the axle housing portion side impact energy absorber connecting block fixing mechanism comprises an axle housing portion threaded through hole, a bridge housing portion tightening bolt, and a front portion side impact energy absorber connecting block tightening bolt, wherein the axle housing portion tightening bolt is arranged on the side wall of the axle housing portion transverse sliding groove and is in threaded connection with the axle housing portion threaded through hole.
3. The drive axle assembly of claim 1, wherein the energy measuring device includes a brake cooling mechanism, a rear brake disc is connected to the axle shaft, the brake cooling mechanism includes an outlet end facing towards the blowing tube of the rear brake disc, a sliding block and a sliding seal connected to the side wall of the energy measuring device sliding cavity, the sliding block is provided with an air outlet, the sliding block is connected to the energy measuring device connecting block through a synchronizing rod, the air pressure of the first cavity of the energy measuring device is reset when the air pressure is set, the piston of the energy measuring device is blocked, the inlet end of the blowing tube is connected to the air outlet, the synchronizing rod includes a sleeve with an upper end connected to the sliding block and a lower end with an upper end penetrating through the sleeve The lower end of the rod body is connected with the bridge shell part side impact prevention energy device connecting block.
4. The drive axle assembly assisting in absorbing side impact energy of the shock absorber as claimed in claim 3, further comprising a water tank, wherein the energy absorber for side impact elimination of the axle housing further comprises a control valve, the control valve comprises a valve body, a valve core and a valve core return spring, the gas blowing pipe comprises a gas outlet section and a gas inlet section, a cylindrical flow channel, a conical flow channel with a large diameter end butted with the cylindrical flow channel, a fluid outlet butted with a small diameter end of the conical flow channel, and a liquid inlet arranged on the cylindrical flow channel are arranged in the valve body, the inlet end of the gas outlet section is connected with the fluid outlet, the outlet end faces the rear brake disc, the inlet end of the gas inlet section is connected with the gas outlet, the outlet end is located in the fluid outlet and has an opening direction far away from the conical flow channel, the valve core is connected in the cylindrical flow channel in a sliding and sealing manner to seal the liquid inlet, the valve core is provided with a liquid flow channel which penetrates through the peripheral surface from the end surface facing one end of the conical surface flow channel and is used for communicating the liquid inlet with the conical surface flow channel, and the liquid inlet is connected with the water tank through a liquid inlet pipe; and an opening of the valve core moving liquid flow channel, which is positioned on the peripheral surface of the valve core, is communicated with the liquid inlet under the action of jet flow generated when gas flows out from the outlet end of the gas inlet section.
5. The drive axle assembly of claim 4 wherein the portion of the cylindrical flow channel on the side of the valve element remote from the conical flow channel is provided with an air vent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111090338.7A CN113619515B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge capable of absorbing side collision energy through automobile body shock absorber during side collision |
| CN202010767504.1A CN111994028B (en) | 2020-08-03 | 2020-08-03 | Drive axle assembly with shock absorber assisting in absorbing side impact energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010767504.1A CN111994028B (en) | 2020-08-03 | 2020-08-03 | Drive axle assembly with shock absorber assisting in absorbing side impact energy |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111090338.7A Division CN113619515B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge capable of absorbing side collision energy through automobile body shock absorber during side collision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111994028A CN111994028A (en) | 2020-11-27 |
| CN111994028B true CN111994028B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111090338.7A Active CN113619515B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge capable of absorbing side collision energy through automobile body shock absorber during side collision |
| CN202010767504.1A Active CN111994028B (en) | 2020-08-03 | 2020-08-03 | Drive axle assembly with shock absorber assisting in absorbing side impact energy |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111090338.7A Active CN113619515B (en) | 2020-08-03 | 2020-08-03 | Automobile bridge capable of absorbing side collision energy through automobile body shock absorber during side collision |
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| CN (2) | CN113619515B (en) |
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| CN112895369B (en) * | 2021-01-13 | 2022-08-26 | 赵乾 | Automatic maintenance and acceleration injection molding auxiliary equipment for injection molding clamp |
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| DE102016007144B3 (en) * | 2016-06-11 | 2017-08-24 | Audi Ag | Achsträger for a multi-track motor vehicle |
| CN107379890A (en) * | 2017-05-17 | 2017-11-24 | 杭州跟策科技有限公司 | If the automobile axle housing of side impact energy-absorbing structure |
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| CN212637392U (en) * | 2020-08-03 | 2021-03-02 | 南平市建阳区汽车锻压件厂 | Drive axle assembly with shock absorber assisting in absorbing side impact energy |
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|---|---|---|---|---|
| RU2243911C1 (en) * | 2003-08-04 | 2005-01-10 | Ткачев Виктор Петрович | Passenger car side energy-absorbing buffer |
| RU2565462C1 (en) * | 2014-08-22 | 2015-10-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ульяновский государственный технический университет" | Sliding safety bumper for vehicle |
| US10316950B2 (en) * | 2017-03-10 | 2019-06-11 | Arvinmeritor Technology, Llc | Axle assembly having a drive pinion and a bearing preload element |
| 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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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016007144B3 (en) * | 2016-06-11 | 2017-08-24 | Audi Ag | Achsträger for a multi-track motor vehicle |
| CN107379890A (en) * | 2017-05-17 | 2017-11-24 | 杭州跟策科技有限公司 | If the automobile axle housing of side impact energy-absorbing structure |
| CN107415588A (en) * | 2017-05-17 | 2017-12-01 | 杭州跟策科技有限公司 | Side impact energy-absorbing formula automobile crane span structure assembly |
| CN212637392U (en) * | 2020-08-03 | 2021-03-02 | 南平市建阳区汽车锻压件厂 | Drive axle assembly with shock absorber assisting in absorbing side impact energy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113619515A (en) | 2021-11-09 |
| CN113619515B (en) | 2023-08-18 |
| CN111994028A (en) | 2020-11-27 |
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Denomination of invention: Drive axle assembly with shock absorber to assist in absorbing side impact energy Effective date of registration: 20221020 Granted publication date: 20211029 Pledgee: Industrial Bank Co.,Ltd. Jianyang sub branch Pledgor: NANPING JIANYANG AUTO PRESS FORGING FACTORY Registration number: Y2022350000137 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 354209 No. 176 Renmin Road, Shui Ji Town, Jianyang District, Nanping, Fujian Patentee after: Fujian Tiechima Light Axle Co.,Ltd. Address before: 354209 No. 176 Renmin Road, Shui Ji Town, Jianyang District, Nanping, Fujian Patentee before: NANPING JIANYANG AUTO PRESS FORGING FACTORY |