CN107234934B - A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle - Google Patents
A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle Download PDFInfo
- Publication number
- CN107234934B CN107234934B CN201710317148.1A CN201710317148A CN107234934B CN 107234934 B CN107234934 B CN 107234934B CN 201710317148 A CN201710317148 A CN 201710317148A CN 107234934 B CN107234934 B CN 107234934B
- Authority
- CN
- China
- Prior art keywords
- drag link
- subframe
- bearing block
- pull rod
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 72
- 230000033001 locomotion Effects 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 9
- 230000004323 axial length Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000000872 buffer Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000012141 concentrate Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
-
- 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
- B60G13/001—Arrangements for attachment of dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
- B60G2204/10—Mounting of suspension elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/011—Modular constructions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle, including for being connect with longitudinal beam subframe assembly, upper longitudinal tie assembly, upper tie rod assembly, lower tie rod assembly, stablize rod assembly, damper spring assembly and with bearing seat assembly；Subframe assembly mainly includes the subframe of the double beam structures of double stringers, and subframe includes subframe front beam, rear cross beam of subframe and subframe longitudinal beam；Upper longitudinal tie assembly mainly includes upper longitudinal tie, upper tie rod assembly mainly includes upper drag link, drag link after lower tie rod assembly mainly includes lower preceding drag link and is lower, stablizing rod assembly mainly includes stablizing pull rod to connect boss with pull rod is stablized, and damper spring assembly mainly includes damper and spring.Suspension of the present invention has enough bearing capacitys, improves vehicle comfort, stability, substantially reduces drive axle weight, improves fuel economy, and space layout meets commercial vehicle motorized demand, and geometric deformation does not occur for suspension under extreme loads.
Description
Technical field
The invention belongs to automotive fields, and in particular to a kind of multi-connecting-rod separated suspension for commercial vehicle drive axle.
Background technique
Existing domestic commercial vehicle drive axle mostly uses beam front axle and leaf spring independent suspension structure, structure chart such as Fig. 1
Shown, safety, stability, comfort are poor, and weight is big, and fuel economy is poor.Nowadays commercial vehicle traveling road conditions are become better and better,
Road surface is relatively flat, and load capacity is larger, so Suspension movement range is little, but has higher want to comfort and load
It asks, with the demand of industry development and the trend of commercial vehicle motorized, more and more commercial vehicle drive axles translate into independence
Suspension.
Disclosed in the CN203666306U in commercial vehicle drive axle suspension, subframe passes through leaf spring pivotally connected frame stringer
It is connected, for damper action on subframe, suspension unsprung mass is big, and maneuverability, comfort are poor.
In prioritization scheme described in CN204184156U, subframe is arranged in above leaf spring, reduces unsprung mass,
Left and right ends wheel hub is directly connected with subframe, does not install lateral stability pull rod, wheel movement interference in two sides is big, and traveling is extremely unstable
It is fixed.
Disclosed in the CN203005011U in drive axle independent suspension, there are upper and lower Length discrepancy both arms to subtract in suspension system with master
Fast device is connected, and disposes damping element in swing arm rear and front end, the horizontal and vertical space of vehicle is extremely defined, for commercialization
Vehicle motorized and motor layout cause great difficulty.
Disclosed in the CN104582982A in independent suspension, knuckle shape and stub contour structures cooperate, and knuckle is logical
It crosses ball stud to connect with split type knuckle support, knuckle support is by hingedly and pumping arm action.
It is independently outstanding for double transverse arms using in the independent suspension of truck disclosed in the CN203854440U and CN201685676U
Frame structure, suspension ride comfort, safety and comfort are good, but bearing capacity is poor, and due to its damper and spring element
Traveller structure is collectively constituted, is easily deformed under larger stress, cannot ensure the bearing capacity of suspension in the two documents,
With being only applicable to commercial vehicle front steeraxle.
On the basis of multi-connecting-rod separated suspension, in conjunction with the advantages of double cross arm independent suspension, give up its bearing bracket
Using increase longitudinal tie and stabilizer bar increase suspension and resist the ability rolled, install two lower drag links, can carry
Power becomes larger, and vibration damping and spring element are separately mounted on two pull rods, reduces stress and concentrates, reduction is suspended under stress
Deformation, promoted suspension bearing capacity.
Suspension completes bearing capacity by five connecting rods and constrains Suspension movement direction, and four connecting rods construct one axis of two sides, protects
The movement of card bearing block does not generate inclination, offset and rotation, increases lateral stability pull rod, resists unilateral wheel inclination or unilateral outstanding
Frame excessive deformation improves the control stability and safety of suspension.
For auxiliary frame suspension device on main car frame, upper connecting rod plays guiding role, connect with subframe longitudinal beam, and lower pull rod rises and holds
Load effect, connect with chassis cross-member, and the stress for reducing vehicle frame is concentrated, and pull rod is both connected on bearing block, close to wheel hub
Placement-face, so that the distance between two lateral bracing struts obviously increase, the vertical space of subframe obviously becomes larger, and front beam is presented to become and be cut
Face structure, reduces the horizontally disposed difficulty of other component, and suspension integrally has apparent space layout advantage, is easy to arrange retarder
Or split motor.
Summary of the invention
The technical problem to be solved by the present invention is to provide one for existing multi-connecting-rod separated suspension above shortcomings
Kind is used for the multi-connecting-rod separated suspension of commercial vehicle drive axle, and in conjunction with the advantages of double cross arm independent suspension, suspension can have enough
Bearing capacity, improves comfort, the stability of vehicle, while substantially reducing drive axle weight, fuel economy is improved, in space
On layout meet the needs of commercial vehicle motorized, geometric deformation will not occur for suspension under extreme loads.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle, it is total including the subframe for being connect with longitudinal beam
At, upper longitudinal tie assembly, upper tie rod assembly, lower tie rod assembly, stablize rod assembly, damper spring assembly and with
The bearing seat assembly of wheel hub connection；
Subframe assembly mainly includes the subframe of the double beam structures of double stringers, and subframe includes subframe front beam, pair
Aft cross member and subframe longitudinal beam, subframe longitudinal beam two sides middle section are provided with subframe middle bracket, subframe rear end support,
Subframe longitudinal beam side is provided with subframe front end connecting hole, and subframe longitudinal beam both ends are provided with subframe mounting hole, for pair
Frame assembly is connect with longitudinal beam；Upper longitudinal tie assembly mainly includes upper longitudinal tie, and upper tie rod assembly mainly includes
Upper drag link, drag link after lower tie rod assembly mainly includes lower preceding drag link and is lower, stablizing rod assembly mainly includes stablizing
Pull rod connects boss with pull rod is stablized, and damper spring assembly mainly includes damper and spring, and bearing seat assembly mainly includes
Bearing block, bearing block upper front end ball head bushing, bearing block upper rear end connection frame, bearing block front lower portion connection frame and bearing
Base rear end lower part connects boss；
Upper longitudinal tie is symmetrical arranged two groups, upper longitudinal tie one end and subframe front end connecting hole be hinged, the other end with
The connection of bearing block upper front end ball head bushing；Upper drag link is two groups arranged symmetrically, upper drag link one end and subframe rear end support
Hingedly, the other end and bearing block upper rear end connection frame are hinged；Drag link is symmetrical arranged two groups before lower, lower preceding drag link one end with
Subframe front beam is hinged, the other end and bearing block front lower portion connection frame are hinged；Drag link is symmetrical arranged two groups, after lower after lower
It is hinged that drag link one end and rear cross beam of subframe be hinged, the other end and bearing block rear end lower connect boss；Stablize the two of pull rod
End connect boss with the stabilization pull rod being arranged on two side shaft holders with bolt respectively and is connected；
Damper and spring are symmetrical arranged two groups, and two groups of dampers are arranged in preceding drag link and subframe under two groups
Between middle bracket, after two groups of springs are arranged under two groups between drag link and subframe rear end support；
Bearing block inner face perpendicular to the ground, is parallel to subframe longitudinal beam, and pass through upper drag link the outer end point, lower preceding drag link
The outer end point and lower rear drag link the outer end point determine that bearing block arrangement is located on bearing block inner face, the reserved wheel side ten thousand of bearing block
To section and semiaxis installation site；Drag link and lower rear drag link are rotated around the first rotary shaft before lower, guarantee bearing block around the first rotation
Pivot, upper drag link be arranged in it is lower after right above drag link, upper drag link is moved around the second rotary shaft, upper drag link with
Drag link motion state is consistent after lower, guarantees that bearing block in bearing block inner end in-plane moving, will not generate inclination, offset and turn
Dynamic, the axially extending line of the axially extending line of lower preceding drag link and lower rear drag link constitutes lower pull rod median plane, lower pull rod center
Face is vertical with bearing block inner face, the vertical end face of lower preceding drag link；It is that lower preceding drag link single head end is vertical that drag link, which indulges end face, before lower
Ground and the end face for being parallel to chassis cross-member, upper longitudinal tie are moved around third rotary shaft, upper longitudinal tie and lower preceding cross
Pull rod guarantees that Plane Rotation does not occur and indulges the bounce in end face in lower preceding drag link for bearing block, stablizes pull rod and connects two side axles
Seat is held, guarantees two sides wheel hub differences in motion in the appropriate range, subframe carries out light-weight technologg, and reserved motor or retarder peace
Fill hole；Drag link is hinged on subframe front beam, rear cross beam of subframe respectively after first rotary shaft is lower preceding drag link and is lower
The rotation axis of coaxial line rotation, the second rotary shaft are upper drag link rotary shaft hinged on subframe rear end support, third rotation
Shaft is the upper longitudinal tie rotation axis hinged around subframe longitudinal beam front end, and the first rotary shaft and the second rotary shaft are in space
Upper level, third rotary shaft and the first rotary shaft, the second rotary shaft are spatially vertical；Bearing block inner face and the first rotation
Axis, the second rotary shaft are spatially horizontal, and bearing block inner face intersects vertically with third rotary shaft, and lower preceding drag link indulges end face and axis
It is vertical to hold an inner face.
According to the above scheme, the damper longitudinal axis of the damper and the spring longitudinal axis of spring are uniformly located at body side
Face, and the side that damper longitudinal axis and spring longitudinal axis are constituted is intersected with lower preceding drag link and lower rear drag link respectively, and with
First rotary shaft is spatially vertical, and spring longitudinal axis is in lower pull rod median plane；Damper upper end passes through in bolt and subframe
Portion's bracket is fixed, lower end is hinged by ball stud and lower preceding drag link, there is shield outside damper, and shield bottom is equipped with rubber
Cushion rubber.
According to the above scheme, subframe rear end support bottom surface is equipped with spring upper end location hole, lower rear drag link upper surface
Equipped with lower spring end location hole, spring one end is embedded in the spring upper end location hole of subframe rear end support, under other end insertion
Afterwards in the lower spring end location hole of drag link；Subframe rear end support and the spacing of lower rear drag link are stretched in the maximum of extreme position
Long amount is less than the drift of spring, and (spring has certain pretightning force at this time, guarantees that spring is fixed on spring upper end location hole, spring
Between the location hole of lower end)；Spring upper and lower side is welded with spring fixed tray respectively, and spring fixed tray end face outside is equipped with rubber buffer
Layer.
According to the above scheme, the subframe longitudinal beam middle section is equipped with the positioning gradient face of sinking, and positioning gradient face is equipped with
Gradient face location hole, positioning gradient face are corresponding with cascaded surface raised on vehicle rail；Subframe rear end support bottom surface is for solid
It is hinged to determine spring, side and upper drag link；There is motor or retarder to install between subframe front beam, rear cross beam of subframe
Space, subframe front beam middle section are equipped with subframe front thin section crossbeam, and rear cross beam of subframe middle section is equipped with subframe rear portion
Thin section crossbeam, and it is reserved with motor or retarder mounting hole, on subframe longitudinal beam and subframe front beam, rear cross beam of subframe
It is equipped with lightweight hollow hole on subframe beam.
According to the above scheme, the lower preceding drag link, lower rear drag link are bearing carrier, lower preceding drag link, lower rear drag link
Size is much larger than upper drag link, upper longitudinal tie size；Before lower drag link and the hinged connecting hole of subframe front beam and under
On an axis, lower preceding drag link and bearing block front lower portion connect for drag link and the hinged connecting hole of rear cross beam of subframe afterwards
It connects the hinged connecting hole of frame and lower rear drag link connect the hinged connecting hole of boss with bearing block rear end lower also in an axis
On line.
According to the above scheme, lower preceding two head end of drag link is articulated with subframe front beam two sides, at two rubber bushing and
Bolt is attached, and another single head end axial length agrees with bearing block front lower portion connection frame width, by rubber bushing and
Bolted splice is in bearing block front lower portion connecting hole；Drag link is H-type rod piece after lower, and lower rear drag link one end is articulated with subframe
Rear cross beam two sides are attached by two rubber bushings and bolt, and the other end is articulated with bearing block rear end lower connection boss, under
Width of the distance between the drag link both ends with corresponding connecting pin agrees with afterwards；Drag link, the straight-bar of lower rear drag link are long before lower
Degree is partially larger than its level length for corresponding to subframe front beam, rear cross beam of subframe fixation hole to crossbeam bend section back side midpoint
Degree；Drag link, the lower rear connectionless place in drag link middle section are equipped with lower pull rod lightweight through-hole before lower.
According to the above scheme, the upper drag link is guide rod, and structure is Y-shaped, the divergent ends and subframe of upper drag link
Rear end support two sides connecting hole is hinged, and single head end and bearing block upper rear end connection frame are hinged, single head end axial length and bearing
Base rear end connecting bracket width agrees with, and upper drag link divergent ends length is longer than on subframe rear end support connecting hole to subframe
The length of rear end support outer boundary.
According to the above scheme, the upper longitudinal tie uses anti-rotational bar, and upper longitudinal tie supplements drag link in guiding,
Wheel in movement is born in the power of vehicle body axial direction, upper longitudinal tie uses 30CrMo material, is divided into two parts, in two parts pass through
External splines cooperation, spline outer end have limit to design, and guarantee bearing block during exercise, and upper longitudinal tie length becomes in a small range
Change.
According to the above scheme, the stable pull rod uses anti-rotational bar, stablizes pull rod and uses 30CrMo material, by bilateral symmetry
Two warp architecture pull rods constitute, stablize pull rod carry out heat treatment and hollow processing；Stablize pull rod by bolt and stablizes drawing
Bar connects the connection of boss internal screw thread, stablizes pull rod and is arranged in rear cross beam of subframe rear end, stablizes pull rod axial bending and turns to back
From subframe direction (being not take up subframe inner space, provide space for installation retarder and motor and ensure).
According to the above scheme, the bearing block is divided into three parts, and front end connects upper longitudinal tie and lower preceding drag link, junction
Be in together in first longitudinal direction plane, first longitudinal direction plane is parallel to lower preceding drag link and indulges end face, perpendicular to lower pull rod median plane and
Bearing block inner face；Rear end connects upper drag link and lower rear drag link, and junction is in together in second longitudinal direction plane, second longitudinal direction
Plane is parallel to first longitudinal direction plane, and perpendicular to lower pull rod median plane and bearing block inner face；Drag link and lower rear cross before lower
Pull rod junction is located in same level plane, this horizontal plane is perpendicular to bearing block inner face and the vertical end of lower preceding drag link
Face is overlapped with lower pull rod median plane；Bearing base rear end simultaneously also with stablize pull rod and be fixedly connected；Middle part be provided with a through-hole and
There is axle journal away from wheel hub end face (towards vehicle frame face), through-hole and axle journal plane sizes guarantee through semiaxis and its bearing, wheel speed
Sensor monitoring holes are located on bearing block inner face, and space size guarantees placement wheel side universal joint, whole to match with wheel hub structure
It closes；Each pull rod is distributed in bearing block surrounding (not concentrating excessively and close to middle part).
The working principle of the invention: suspension completes bearing capacity by five connecting rods and constrains Suspension movement direction, respectively
Lower preceding drag link, lower rear drag link, upper drag link, upper longitudinal tie and stable pull rod, wherein drag link and lower rear horizontal drawing before lower
Bar is bearing carrier, lower preceding drag link, it is lower after drag link and front beam, rear cross beam connecting hole on an axis, before lower
Drag link, lower rear drag link and the hinged connecting hole of bearing block also on an axis, make lower preceding drag link and lower rear drag link
It is in same plane when movement, guarantees that lower preceding drag link and lower rear drag link do not have movement interference and do not generate concentrated stress,
The distribution of two bar bearing capacities is average, improves bearing capacity.Upper drag link is guide rod, and the drag link axis of symmetry is in " Y type "
After under " H-type " right above drag link axis, the two motion state is consistent, guarantees the movement of bearing block in bearing block inner face just
Often movement.Upper longitudinal tie supplements drag link in guiding, bears power of the wheel in vehicle body axial direction in movement, upper longitudinal tie
There is shorter spline segment in middle section, and rod length is changed in lesser range, guarantees the linear of rack buffer variation.Increase
Add lateral stability pull rod, connect bearings at both ends seat, improve vehicle roll stiffness, resists unilateral wheel inclination or unilateral suspension is excessive
Deformation.
The invention has the following advantages:
1, it is in same plane when lower preceding drag link, lower rear drag link move, guarantees that lower preceding drag link, lower rear drag link exist
Movement interference is not generated, and does not generate concentrated stress with subframe front beam, rear cross beam of subframe bending section in movement, it is horizontal before lower
Pull rod, lower rear drag link bearing capacity distribution are average, improve bearing capacity；
2, after the drag link axis of symmetry is under " H-type " in " Y type " right above drag link axis, the two motion state one
It causes, guarantees the movement of the bearing block proper motion in bearing block inner face, inclination, offset and rotation will not be generated；
3, there is shorter spline segment in upper longitudinal tie middle section, and spline outer end has limit to design, and guarantees bearing block during exercise,
Upper longitudinal tie length changes in a small range, guarantees that upper longitudinal tie will not be broken under larger load condition, and pass through end
Mouth limit guarantees Suspension movement within OK range, guarantees the linear of rack buffer variation, and guarantee vehicle comfort reaches limit
Behind the position of position, supporting bearing base does not generate over-deflection；
4, increase lateral stability pull rod, connect bearings at both ends seat, improve vehicle roll stiffness, resist unilateral wheel roll or
Unilateral suspension excessive deformation improves the control stability and safety of suspension；
5, damper is identical with spring movement state, gives full play to respective effectiveness in vibration suppression, when suspension is in limit load processed
When, each component movement interference of suspension is avoided, reduces stress and concentrates, promote load；Damper spring assembly is by original slide column type
Variation is separate type, reduces unsprung mass, while being not take up subframe central space；On the outside of the spring fixed tray of spring upper and lower side
Face has cushion rubber layer, and damper exterior protection cover is rubber ring, guarantees that geometric deformation does not occur for output shaft and suspension system；
6, lower preceding drag link, the lower rear connectionless place in drag link middle section are equipped with lower pull rod lightweight through-hole, and it is whole to reduce suspension
Body weight enhances lower preceding drag link, lower rear drag link torsional strength；Stablize pull rod and carry out heat treatment and hollow processing, is dropped with this
Low stable pull rod weight improves and stablizes pull rod intensity and torsional property；Whole subframe carries out light-weight technologg, mitigates suspension
Total weight improves fuel economy.
Detailed description of the invention
Fig. 1 is conventional in the prior art integral axle and Leaf Spring Suspension structure chart；
Fig. 2 is perspective view of the present invention for the multi-connecting-rod separated suspension of commercial vehicle drive axle；
Fig. 3 is the top view of multi-connecting-rod separated suspension shown in Fig. 2；
Fig. 4 is the side view of multi-connecting-rod separated suspension shown in Fig. 2；
Fig. 5 is the suspension frame structure schematic diagram of multi-connecting-rod separated suspension side shown in Fig. 2；
Fig. 6 is the perspective view of subframe assembly in Fig. 2；
In figure, 1- subframe assembly, the upper longitudinal tie assembly of 2-, the upper tie rod assembly of 3-, tie rod assembly under 4-, 5- is steady
Determine rod assembly, 6- damper spring assembly, 7- bearing seat assembly, 8- bearing block inner face, 9- bearing block, 10- wheel hub, 11-
Damper, 12- spring, 13- subframe middle bracket, 14- ball stud, preceding drag link under 15-, 16- subframe rear end support,
17- spring upper end location hole, under 18- after drag link, 19- lower spring end location hole, the upper longitudinal tie of 20-, 21- subframe front end
Connecting hole, 22- bearing block upper front end ball head bushing, the upper drag link of 23-, 24- bearing block upper rear end connection frame, 25- pair vehicle
Frame front beam, 26- bearing block front lower portion connection frame, 27- rear cross beam of subframe, 28- bearing block rear end lower connect boss,
29- stablizes pull rod, and 30- stablizes pull rod and connects boss, the first rotary shaft of 31-, the second rotary shaft of 32-, 33- third rotary shaft, 34-
Drag link indulges end face, 35- subframe, 36- motor or retarder mounting hole, 37- semiaxis, 38- damper longitudinal axis, 39- before lower
Spring longitudinal axis, pull rod median plane under 40-, 41- spring fixed tray, 42- buffer layer, 43- shield, 44- rubber ring, 45- pair
Vehicle frame mounting hole, 46- position gradient face, lightweight hollow hole on 47- subframe beam, 48- wheel speed sensors monitoring holes, 49- ladder
Degree face location hole, 50- subframe front thin section crossbeam, 51- subframe rear portion thin section crossbeam, 52- axle journal, pull rod under 53-
Lightweight through-hole, 54- warp architecture pull rod.
Specific embodiment
The present invention is made for the specific embodiment of the multi-connecting-rod separated suspension of commercial vehicle drive axle below against attached drawing
Description is further described, helps those skilled in the art to understand design of the invention and understand technical principle, helps
In its implementation.
As shown in Fig. 2~Fig. 5, the multi-connecting-rod separated suspension of commercial vehicle drive axle, packet are used for described in the embodiment of the present invention
Include subframe assembly 1, upper longitudinal tie assembly 2, the upper tie rod assembly 3, lower tie rod assembly for connecting with longitudinal beam
4, stablize rod assembly 5, damper spring assembly 6 and the bearing seat assembly 7 connecting with wheel hub 10.
Subframe assembly 1 mainly includes the subframe 35 of the double beam structures of double stringers, is similar to " mouth " font, subframe 35
Including subframe front beam 25, rear cross beam of subframe 27 and subframe longitudinal beam, subframe longitudinal beam two sides middle section is provided with subframe
Middle bracket 13, subframe rear end support 16, subframe longitudinal beam side are provided with subframe front end connecting hole 21, subframe longitudinal beam
Both ends are provided with subframe mounting hole 45, connect with longitudinal beam for subframe assembly 1 and (when being connected with while using rubber
Glue bushing is suspended in subframe 35 on vehicle frame, buffers the impact between subframe 35 and vehicle frame)；Upper longitudinal tie assembly 2 is main
It to include upper longitudinal tie 20, upper tie rod assembly 3 mainly includes upper drag link 23, before lower tie rod assembly 4 mainly includes lower
Drag link 15 and lower rear drag link 18, stablizing rod assembly 5 mainly includes stablizing pull rod 29 to connect boss 30 with pull rod is stablized, and is subtracted
Device main assemblage of spring 6 of shaking mainly includes damper 11 and spring 12, and bearing seat assembly 7 is mainly including on bearing block 9, bearing block front end
Portion's ball head bushing 22, bearing block upper rear end connection frame 24, bearing block front lower portion connection frame 26 and bearing block rear end lower connect
Connect boss 28.
Upper longitudinal tie 20 is symmetrical arranged two groups, and upper 20 one end of longitudinal tie and subframe front end connecting hole 21 are hinged (simultaneously
Be attached by two rubber bushings and bolt), the other end and bearing block upper front end ball head bushing 22 connection (towards vehicle frame face
Connection, then be fixed by wheel hub surface)；Upper drag link 23 is two groups arranged symmetrically, upper 23 one end of drag link and subframe rear end branch
Frame 16 is hinged, the other end and bearing block upper rear end connection frame 24 are hinged；Drag link 15 is symmetrical arranged two groups before lower, lower preceding horizontal drawing
15 one end of bar and subframe front beam 25 be hinged, the other end and bearing block front lower portion connection frame 26 are hinged；Drag link 18 after lower
Be symmetrical arranged two groups, it is lower after 18 one end of drag link and rear cross beam of subframe 27 hingedly, the other end and bearing block rear end lower connect
Boss 28 is hinged；The both ends for stablizing pull rod 29 connect boss with the stabilization pull rod being arranged on two side shaft holders 9 with bolt respectively
30 are connected；
Damper 11 and spring 12 are symmetrical arranged two groups, and two groups of dampers 11 are arranged in preceding drag link 15 under two groups
Between subframe middle bracket 13, drag link 18 and subframe rear end support 16 after two groups of springs 12 are arranged under two groups
Between；Bearing block inner face 8 perpendicular to the ground, is parallel to subframe longitudinal beam, and pass through upper 23 the outer end point of drag link, lower preceding drag link
15 the outer end points and lower rear 18 the outer end point of drag link determine that the arrangement of bearing block 9 is located on bearing block inner face 8, and bearing block 9 is reserved
Take turns side universal joint and 37 installation site of semiaxis, lower preceding drag link 15, lower rear drag link 18, upper drag link 23, upper longitudinal tie 20
With stablize pull rod 29 with bearing block it is hinged；Drag link 15 and lower rear drag link 18 are rotated around the first rotary shaft 31 before lower, are guaranteed
Bearing block 9 is moved around the first rotary shaft 31, and upper drag link 23 is arranged in right above lower rear drag link 18, guarantees that two pull rods move shape
State is as identical as possible, reduces the abrasion of suspension system at work, and upper drag link 23 is moved around the second rotary shaft 32, upper horizontal drawing
Bar 23 with it is lower after 18 motion state of drag link it is consistent, guarantee bearing block 9 moved in bearing block inner face 8, will not generate inclination,
The axially extending line of offset and rotation, the axially extending line of lower preceding drag link 23 and lower rear drag link 18 constitutes lower pull rod median plane
40, lower pull rod median plane 40 is vertical with bearing block inner face 8, the vertical end face 34 of lower preceding drag link；The vertical end face 34 of drag link is before lower
It descends preceding 15 single head end of drag link perpendicular to the ground and is parallel to the end face of chassis cross-member, upper longitudinal tie 20 surrounds third rotary shaft
33 movements, upper longitudinal tie 20 and lower preceding drag link 15 guarantee that Plane Rotation does not occur and indulges in lower preceding drag link for bearing block 9
Bounce in end face 34 stablizes pull rod 29 and connects two side shaft holders 9, guarantees 10 differences in motion of two sides wheel hub in the appropriate range, secondary
Vehicle frame 35 carries out light-weight technologg, and reserved motor or retarder mounting hole 36；First rotary shaft 31 is respectively lower preceding drag link
15 and it is lower after the rotation axis that hinged coaxial line rotates on subframe front beam 25, rear cross beam of subframe 27 of drag link 18, second
Rotary shaft 32 is upper drag link 23 rotary shaft hinged on subframe rear end support 16, and third rotary shaft 33 is upper longitudinal tie
20 rotation axis hinged around subframe longitudinal beam front end, and the first rotary shaft 31 and the second rotary shaft 32 are spatially horizontal, the
Three rotary shafts 33 and the first rotary shaft 31, the second rotary shaft 32 are spatially vertical；Bearing block inner face 8 and the first rotary shaft
31, the second rotary shaft 32 is spatially horizontal, and bearing block inner face 8 intersects vertically with third rotary shaft 33, the vertical end of lower preceding drag link
Face 34 is vertical with bearing block inner face 8.
The damper longitudinal axis 38 of damper 11 and the spring longitudinal axis 39 of spring 12 are unified positioned at vehicle body side, damper
The side that longitudinal axis 38 and spring longitudinal axis 39 are constituted is intersected with lower preceding drag link 15 and lower rear drag link 18 respectively, with the first rotation
Shaft 31 is spatially vertical, and for spring longitudinal axis 39 in lower pull rod median plane 40, damper 11 is identical with 12 motion state of spring,
Respective effectiveness in vibration suppression is given full play to, movement interference is avoided, reduces stress and concentrates, promote load.
11 one end of damper completes to position by positioning bolt and the location hole of subframe middle bracket 13, passes through top
Bolt is connect with subframe middle bracket 13, under the other end is first corresponding in 15 location hole of preceding drag link, through ball head bushing under
Preceding drag link 15 is hinged, then fixes from lower preceding drag link 15 insertion bolt near the ground, convenient for the installation, maintenance and more of damper 11
It changes, and avoids due to the parts damages of one of damping element, the dangerous situation of suspension forfeiture effect occurs；11 phase of damper
For shock-absorbing spring 12 closer to vehicle forward direction, outside have one layer of shield 43, protection damper at work will not
It is influenced by severe operating condition, 43 bottom of shield is equipped with rubber ring 44, avoids being suspended in when the limit meets and moves past the limit
Movement interference is caused to generate deformation in position.
16 bottom surface of subframe rear end support is equipped with spring upper end location hole 17, and lower rear 18 upper surface of drag link is equipped under spring
Location hole 19 is held, after 12 one end of spring is embedded in the spring upper end location hole 17 of subframe rear end support 16, other end insertion is lower
In the lower spring end location hole 19 of drag link 18；The spacing of subframe rear end support 16 and lower rear drag link 18 is in extreme position
Maximal tensility is less than the drift of spring 12, and spring 12 has certain pretightning force at this time, guarantees that spring 12 is fixed on spring
It holds between location hole 17, lower spring end location hole 19；Spring upper and lower side is welded with spring fixed tray 41 respectively, outside spring fixed tray 41
Side end face is equipped with cushion rubber layer 42.
Subframe longitudinal beam middle section is equipped with the positioning gradient face 46 (positioning countersunk seat) of sinking, and positioning gradient face 46 is equipped with
Gradient face location hole 49, positioning gradient face 46 is corresponding with cascaded surface raised on vehicle rail, is convenient for subframe 35 and suspension system
The location and installation of system, gradient face location hole 49 ensure accurate positioning；16 bottom surface of subframe rear end support is used for fixed spring 12, side
Face and upper drag link 23 are hinged；Have motor or retarder installation empty between subframe front beam 25, rear cross beam of subframe 27
Between, 25 middle section of subframe front beam is equipped with subframe front thin section crossbeam 50 (area of section becomes smaller, variable cross-section is handled), secondary vehicle
27 middle section of frame rear cross beam is equipped with subframe rear portion thin section crossbeam 51 (area of section becomes smaller, variable cross-section is handled), and is reserved with electricity
Subframe beam is equipped on machine or retarder mounting hole 36, subframe longitudinal beam and subframe front beam 25, rear cross beam of subframe 27
Upper lightweight hollow hole 47, whole subframe carry out light-weight technologg, mitigate the total weight of suspension, improve fuel economy.
Drag link 15 before lower, it is lower after drag link 18 be bearing carrier, primarily serve carrying effect, lower preceding drag link 15, under
18 size of drag link is much larger than upper drag link 23,20 size of upper longitudinal tie afterwards；Drag link 15 and subframe front beam 25 before lower
Hinged connecting hole and lower rear drag link 18 and the hinged connecting hole of rear cross beam of subframe 27 are on an axis, horizontal before lower
Pull rod 15 and the hinged connecting hole of bearing block front lower portion connection frame 26 and lower rear drag link 18 connect with bearing block rear end lower
Connect the hinged connecting hole of boss 28 also on an axis, make lower preceding drag link 15, it is lower after drag link 18 when moving in same
Plane guarantees that lower preceding drag link 15, lower rear drag link 18 do not have movement interference and do not generate concentrated stress, lower preceding drag link
15, lower rear 18 bearing capacity of drag link distribution is average, improves bearing capacity.
Drag link 15 is in non-standard Y type before lower, and two head ends are articulated with 25 two sides of subframe front beam, at two rubber bushing and
Bolt is attached, and another single head end axial length agrees with 26 width of bearing block front lower portion connection frame, passes through rubber bushing
With bolted splice in bearing block front lower portion connecting hole；Drag link 18 is H-type rod piece after lower, and one end is articulated with cross after subframe
27 two sides of beam, are attached by two rubber bushings and bolt, and the other end is articulated with bearing block rear end lower connection boss 28,
Width of the distance between the both ends with corresponding connecting pin agrees with.The straight-bar length portion of drag link 15, lower rear drag link 18 before lower
Divide and is greater than its level length for corresponding to subframe front beam 25,27 fixation hole of rear cross beam of subframe to crossbeam bend section back side midpoint
Degree, prevent lower preceding drag link 15, it is lower after drag link 18 during exercise with subframe front beam 25,27 bending section of rear cross beam of subframe
Movement interference is generated, lower preceding drag link 15, the lower rear connectionless place in 18 middle section of drag link are equipped with lower pull rod lightweight through-hole 53, drop
Low suspension overall weight enhances lower preceding drag link 15,18 torsional strength of lower rear drag link.
Upper drag link 23 be guide rod, structure is Y-shaped, the divergent ends of upper drag link 23 with 16 liang of subframe rear end support
Side connecting hole is hinged, and single head end and bearing block upper rear end connection frame 24 are hinged, and single head end axial length and bearing base rear end connect
It connects support width to agree with, and 23 divergent ends length of upper drag link is longer than on subframe rear end support 16 connecting hole to subframe rear end
The length of 16 outer boundary of bracket, avoids movement interference.Drag link 18 after 23 axis of symmetry of drag link is under " H-type " in " Y type "
Right above axis, the two motion state is consistent, and the movement of guarantee bearing block 9 proper motion in bearing block inner face will not produce
It is raw to roll, deviate and rotate.
Upper longitudinal tie 20 uses anti-rotational bar (torsion type rod piece), and upper longitudinal tie 20 supplements drag link in guiding
23, wheel in movement is born in the power of vehicle body axial direction, and upper longitudinal tie 20 use 30CrMo material is divided into two parts, two parts
By inside and outside spline fitted (the shorter spline segment in upper 20 middle section of longitudinal tie), spline outer end has limit to design, and guarantees bearing block 9
During exercise, upper longitudinal tie 20 can change in length in a small range, guarantee upper longitudinal drawing under larger load condition
Bar 20 will not be broken, and limited by port and guaranteed Suspension movement within OK range, guarantee the linear of rack buffer variation,
Guarantee vehicle comfort, after reaching restraining position, supporting bearing base 9 does not generate over-deflection.
Stablize pull rod 29 and use anti-rotational bar (torsion type rod piece), stablizes pull rod 29 and equally use 30CrMo material, by a left side
Right symmetrical two warp architecture pull rods 54 are constituted, and are stablized pull rod 29 and are carried out heat treatment and hollow processing, reduce stable drawing with this
29 weight of bar improves and stablizes 29 intensity of pull rod and torsional property.
Stablize pull rod 29 and the connection of 30 internal screw thread of boss is connected with pull rod is stablized by bolt, stablizes pull rod 29 and be arranged in secondary vehicle
27 rear end of frame rear cross beam is stablized 29 axial bending of pull rod and is turned to and deviates from 35 direction of subframe, and it is empty to be not take up 35 inside of subframe
Between, space is provided and is ensured for installation retarder and motor.
To guarantee the movement correctness of bearing block 9 and reducing service wear, 9 structure of bearing block meets: the structure on bearing block
Positional relationship and the constraint of rod piece component movement between part junction is consistent, makes bearing block 9 at work will not be by multi-direction power
It acts on and damages.Bearing block 9 divides for three parts, and front end connects upper longitudinal tie 20 and lower preceding drag link 15, and junction is in together
In first longitudinal direction plane, first longitudinal direction plane is parallel to lower preceding drag link and indulges end face 34, perpendicular to lower pull rod median plane 40 and axis
Hold an inner face 8；Rear end connects upper drag link 23 and lower rear drag link 18, and junction is in together in second longitudinal direction plane, and second
Fore-and-aft plane is parallel to first longitudinal direction plane, and perpendicular to lower pull rod median plane 40 and bearing block inner face 8, lower preceding drag link 15
With it is lower after 18 junction of drag link be located in same level plane, this horizontal plane perpendicular to bearing block inner face 8 and it is lower before
Drag link indulges end face 34, is overlapped with lower pull rod median plane 40, guarantees that not generating biggish stress inside when bearing block 9 works answers
Become, and prevent bearing block 9 from being damaged at work by the effect of multi-direction power, 9 rear end of bearing block simultaneously also with to stablize pull rod 29 solid
Fixed connection；Middle part is provided with a through-hole and is having axle journal 52 away from 10 end face of wheel hub (towards vehicle frame face), and through-hole and axle journal 52 are flat
Face size guarantees through semiaxis 37 and its bearing, and wheel speed sensors monitoring holes 48 are located on bearing block inner face 8, space size
Guarantee placement wheel side universal joint, it is whole to cooperate with 10 structure of wheel hub；Each pull rod is distributed in 9 surrounding of bearing block, should not excessively collect
In and close to middle part.
Multi-connecting-rod separated suspension of the present invention need carry compared with heavy-duty when, propose a kind of improvement project, by carry out compared with
Small structural adjustment increases the bearing capacity of suspension, suspension is made to meet requirement, excellent on longitudinal space due to being suspended in
Gesture can be transformed to traveller assembly on the basis of preventing take up horizontal space at former spring, and former damper 11 is transformed to air
Spring cushion enhances the damping property and bearing capacity of suspension, meets heavily loaded use condition.
Multi-connecting-rod separated suspension of the present invention at work, each component layout of vehicle drive system in the center of subframe 35
In space, retarder can be after the shared subframe positioning another gradient end face in gradient face 46 be positioned, after subframe
Motor or retarder mounting hole 36 on crossbeam 27 are fixed, and horizontal space meets at least one retarder, by semiaxis 37
Transmitting is supported by bearing block 9, is reconnected in wheel hub 10, is reached power drive purpose；When commercial vehicle is that motor independently drives, axis
It is larger to hold 9 middle part vertical direction space of seat, can arrange that hub reduction gear, two sides driving motor can be side by side respectively by two sides pair vehicles
Frame positions gradient face 46 and positions, then motor or retarder mounting hole 36 by reserving on rear cross beam of subframe 27 are consolidated respectively
Fixed, motor output shaft replaces semiaxis 37, is connect by universal joint with hub reduction gear, and hub reduction gear output shaft passes through bearing block
It is connect after 9 bearing with wheel hub 10, reaches power drive purpose.
The above content combination attached drawing has carried out exemplary illustration to the present invention, and also there are many variations in terms of structure and layout
And modification, therefore equivalent technical solution also belongs to scope of the invention, using the unsubstantiality of design of the invention and scheme
It improves, it is within the scope of the present invention.
Claims (10)
1. a kind of multi-connecting-rod separated suspension for commercial vehicle drive axle, total including the subframe for connecting with longitudinal beam
At, upper longitudinal tie assembly, upper tie rod assembly, lower tie rod assembly, stablize rod assembly, damper spring assembly and with
The bearing seat assembly of wheel hub connection, it is characterised in that:
Subframe assembly mainly includes the subframe of the double beam structures of double stringers, and subframe includes subframe front beam, subframe
Rear cross beam and subframe longitudinal beam, subframe longitudinal beam two sides middle section are provided with subframe middle bracket, subframe rear end support, secondary vehicle
Frame stringer side is provided with subframe front end connecting hole, and subframe longitudinal beam both ends are provided with subframe mounting hole, for subframe
Assembly is connect with longitudinal beam；Upper longitudinal tie assembly mainly includes upper longitudinal tie, and upper tie rod assembly mainly includes upper cross
Pull rod, drag link after lower tie rod assembly mainly includes lower preceding drag link and is lower, stablizing rod assembly mainly includes stablizing pull rod
Boss is connected with pull rod is stablized, damper spring assembly mainly includes damper and spring, and bearing seat assembly mainly includes bearing
After seat, bearing block upper front end ball head bushing, bearing block upper rear end connection frame, bearing block front lower portion connection frame and bearing block
Lower part is held to connect boss；
Upper longitudinal tie is symmetrical arranged two groups, and upper longitudinal tie one end and subframe front end connecting hole be hinged, the other end and bearing
Seat upper front end ball head bushing connection；Upper drag link is symmetrical arranged two groups, upper drag link one end and subframe rear end support be hinged,
The other end and bearing block upper rear end connection frame are hinged；Drag link is two groups arranged symmetrically before lower, lower preceding drag link one end and secondary vehicle
Frame front beam is hinged, the other end and bearing block front lower portion connection frame are hinged；Drag link is symmetrical arranged two groups after lower, lower rear horizontal drawing
It is hinged that bar one end and rear cross beam of subframe be hinged, the other end and bearing block rear end lower connect boss；Stablize the both ends point of pull rod
Boss is not connect with the stabilization pull rod being arranged on two side shaft holders with bolt to be connected；
Damper and spring are symmetrical arranged two groups, and two groups of dampers are arranged in preceding drag link and subframe middle part under two groups
Between bracket, after two groups of springs are arranged under two groups between drag link and subframe rear end support；
Bearing block inner face perpendicular to the ground, is parallel to subframe longitudinal beam, and pass through upper drag link the outer end point, lower preceding drag link outer end
Point and lower rear drag link the outer end point determine that bearing block arrangement is located on bearing block inner face, the reserved wheel side universal joint of bearing block
With semiaxis installation site；Drag link and lower rear drag link are rotated around the first rotary shaft before lower, guarantee bearing block around the first rotary shaft
Movement, upper drag link be arranged in it is lower after right above drag link, upper drag link around the movement of the second rotary shaft, upper drag link and it is lower after
Drag link motion state is consistent, guarantees that bearing block in bearing block inner end in-plane moving, will not generate inclination, offset and rotation, under
The axially extending line of the axially extending line of preceding drag link and lower rear drag link constitutes lower pull rod median plane, lower pull rod median plane and axis
It is vertical to hold the vertical end face of an inner face, lower preceding drag link；Before lower drag link indulge end face be lower preceding drag link single head end perpendicular to the ground and
It is parallel to the end face of chassis cross-member, upper longitudinal tie is moved around third rotary shaft, and upper longitudinal tie and lower preceding drag link are protected
Plane Rotation does not occur and indulges the bounce in end face in lower preceding drag link for card bearing block, stablizes pull rod and connects two side shaft holders,
Guarantee two sides wheel hub differences in motion in the appropriate range, subframe carries out light-weight technologg, and reserved motor or retarder mounting hole；
First rotary shaft is lower preceding drag link and lower rear the drag link hinged coaxial line on subframe front beam, rear cross beam of subframe respectively
The rotation axis of rotation, the second rotary shaft are upper drag link rotary shaft hinged on subframe rear end support, and third rotary shaft is
Upper longitudinal tie is around the hinged rotation axis in subframe longitudinal beam front end, and the first rotary shaft and the second rotary shaft spatially water
Flat, third rotary shaft and the first rotary shaft, the second rotary shaft are spatially vertical；Bearing block inner face and the first rotary shaft,
Two rotary shafts are spatially horizontal, and bearing block inner face intersects vertically with third rotary shaft, and lower preceding drag link indulges end face and bearing block
Inner face is vertical.
2. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the vibration damping
The damper longitudinal axis of device and the spring longitudinal axis of spring are uniformly located at vehicle body side, damper longitudinal axis and spring longitudinal axis structure
At side respectively with lower preceding drag link and it is lower after drag link intersect, and, spring longitudinal axis spatially vertical with the first rotary shaft
In lower pull rod median plane；Damper upper end fixed by bolt and subframe middle bracket, lower end by ball stud and it is lower before
Drag link is hinged, there is shield outside damper, and shield bottom is equipped with rubber ring.
3. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the pair vehicle
Frame rear end support bottom surface is equipped with spring upper end location hole, and lower rear drag link upper surface is equipped with lower spring end location hole, spring one end
It is embedded in the spring upper end location hole of subframe rear end support, in the lower spring end location hole of the lower rear drag link of other end insertion；
The spacing of subframe rear end support and lower rear drag link is less than the drift of spring in the maximal tensility of extreme position；Spring
Upper and lower side is welded with spring fixed tray respectively, and spring fixed tray end face outside is equipped with cushion rubber layer.
4. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the pair vehicle
Frame stringer middle section is equipped with the positioning gradient face of sinking, and positioning gradient face is equipped with gradient face location hole, positions gradient face and vehicle
Raised cascaded surface is corresponding on frame stringer；Subframe rear end support bottom surface is hinged for fixed spring, side and upper drag link；It is secondary
There is motor or retarder installation space, subframe front beam middle section is equipped with pair between frame front cross beam, rear cross beam of subframe
Vehicle frame front thin section crossbeam, rear cross beam of subframe middle section is equipped with subframe rear portion thin section crossbeam, and is reserved with motor or subtracts
Lightweight hollow out on subframe beam is equipped on fast device mounting hole, subframe longitudinal beam and subframe front beam, rear cross beam of subframe
Hole.
5. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: it is described it is lower before
Drag link, lower rear drag link are bearing carrier, and lower preceding drag link, lower rear drag link size are much larger than upper drag link, upper longitudinal drawing
Bar size；Before lower drag link and the hinged connecting hole of subframe front beam and it is lower after drag link and rear cross beam of subframe it is hinged
Connecting hole on an axis, lower preceding drag link and the hinged connecting hole of bearing block front lower portion connection frame and it is lower after horizontal drawing
Bar connect the hinged connecting hole of boss with bearing block rear end lower also on an axis.
6. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: it is described it is lower before
Two head end of drag link is articulated with subframe front beam two sides, and rubber bushing and bolt are attached at two, and another single head end is axial
Length is agreed with bearing block front lower portion connection frame width, is connected with bolted splice in bearing block front lower portion by rubber bushing
Hole；Drag link is H-type rod piece after lower, it is lower after drag link one end be articulated with rear cross beam of subframe two sides, by two rubber bushings and
Bolt is attached, and the other end is articulated with bearing block rear end lower connection boss, it is lower after the distance between drag link both ends with
The width of corresponding connecting pin agrees with；Drag link, the straight-bar length thereof of lower rear drag link are horizontal greater than before its correspondence subframe before lower
The horizontal length of beam, rear cross beam of subframe fixation hole to crossbeam bend section back side midpoint；In lower preceding drag link, lower rear drag link
The connectionless place of section is equipped with lower pull rod lightweight through-hole.
7. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the upper cross
Pull rod is guide rod, and structure is Y-shaped, and the divergent ends and subframe rear end support two sides connecting hole of upper drag link are hinged, single head
End is hinged with bearing block upper rear end connection frame, and single head end axial length agrees with bearing base rear end connecting bracket width, and on
Drag link divergent ends length is longer than on subframe rear end support connecting hole to the length of subframe rear end support outer boundary.
8. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: described vertical
Anti-rotational bar is used to pull rod, upper longitudinal tie supplements drag link in guiding, and wheel is in vehicle body axial direction in receiving movement
Power, upper longitudinal tie use 30CrMo material, are divided into two parts, two parts have limit by inside and outside spline fitted, spline outer end
Design guarantees bearing block during exercise, and upper longitudinal tie length changes in a small range.
9. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the stabilization
Pull rod uses anti-rotational bar, stablizes pull rod and uses 30CrMo material, be made of symmetrical two warp architecture pull rods, stablizes
Pull rod carries out heat treatment and hollow processing；Stablize pull rod and the connection of boss internal screw thread is connected with pull rod is stablized by bolt, stablizes and draw
Bar is arranged in rear cross beam of subframe rear end, stablizes pull rod axial bending and turns to and deviates from subframe direction.
10. the multi-connecting-rod separated suspension according to claim 1 for commercial vehicle drive axle, it is characterised in that: the axis
It holds seat and is divided into three parts, front end connects upper longitudinal tie and lower preceding drag link, junction are in together in first longitudinal direction plane, and first
Fore-and-aft plane is parallel to lower preceding drag link and indulges end face, perpendicular to lower pull rod median plane and bearing block inner face；The upper cross of rear end connection
Pull rod and lower rear drag link, junction are in together in second longitudinal direction plane, and second longitudinal direction plane is parallel to first longitudinal direction plane, and
Perpendicular to lower pull rod median plane and bearing block inner face；Drag link and lower rear drag link junction are located at same level plane before lower
Interior, this horizontal plane indulges end face perpendicular to bearing block inner face and lower preceding drag link, is overlapped with lower pull rod median plane；Bearing block
Rear end simultaneously also with stablize pull rod and be fixedly connected；Middle part is provided with a through-hole and is having axle journal, through-hole and axis away from wheel hub end face
Neck plane sizes guarantee through semiaxis and its bearing, and wheel speed sensors monitoring holes are located on bearing block inner face, space size
Guarantee placement wheel side universal joint, it is whole to cooperate with wheel hub structure；Each pull rod is distributed in bearing block surrounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317148.1A CN107234934B (en) | 2017-05-08 | 2017-05-08 | A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317148.1A CN107234934B (en) | 2017-05-08 | 2017-05-08 | A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107234934A CN107234934A (en) | 2017-10-10 |
| CN107234934B true CN107234934B (en) | 2019-03-08 |
Family
ID=59984986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710317148.1A Active CN107234934B (en) | 2017-05-08 | 2017-05-08 | A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107234934B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109131565A (en) * | 2018-09-06 | 2019-01-04 | 陕西同力重工股份有限公司 | Off-highway wide dumper |
| CN109720161A (en) * | 2019-01-25 | 2019-05-07 | 云南航天神州汽车有限公司 | A kind of rubber suspension |
| CN111497941A (en) * | 2020-03-25 | 2020-08-07 | 宁波吉利汽车研究开发有限公司 | Auxiliary frame assembly and vehicle |
| CN112277555B (en) * | 2020-11-13 | 2022-04-08 | 东风商用车有限公司 | Automobile rear suspension system and mounting method thereof |
| CN113561722A (en) * | 2021-08-12 | 2021-10-29 | 安徽江淮汽车集团股份有限公司 | Integral bridge type suspension |
| CN114056021B (en) * | 2021-11-02 | 2023-08-01 | 湖南三一中型起重机械有限公司 | Semi-independent suspension system and crane |
| CN116118870A (en) * | 2023-03-10 | 2023-05-16 | 岚图汽车科技有限公司 | Suspension system and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203854440U (en) * | 2014-04-03 | 2014-10-01 | 奇瑞汽车股份有限公司 | Independent suspension for light truck |
| JP2015155219A (en) * | 2014-02-20 | 2015-08-27 | Ntn株式会社 | Suspension device and suspension structure for in-wheel motor drive device |
| CN204659823U (en) * | 2015-05-20 | 2015-09-23 | 山东新大洋电动车有限公司 | A kind of miniature electric automobile front suspension apparatus |
| CN206106845U (en) * | 2016-09-14 | 2017-04-19 | 上汽通用五菱汽车股份有限公司 | Back independent suspension subassembly |
| CN106585312A (en) * | 2016-11-02 | 2017-04-26 | 北京宏瑞汽车科技股份有限公司 | Transverse plate spring type independent suspension structure |
-
2017
- 2017-05-08 CN CN201710317148.1A patent/CN107234934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015155219A (en) * | 2014-02-20 | 2015-08-27 | Ntn株式会社 | Suspension device and suspension structure for in-wheel motor drive device |
| CN203854440U (en) * | 2014-04-03 | 2014-10-01 | 奇瑞汽车股份有限公司 | Independent suspension for light truck |
| CN204659823U (en) * | 2015-05-20 | 2015-09-23 | 山东新大洋电动车有限公司 | A kind of miniature electric automobile front suspension apparatus |
| CN206106845U (en) * | 2016-09-14 | 2017-04-19 | 上汽通用五菱汽车股份有限公司 | Back independent suspension subassembly |
| CN106585312A (en) * | 2016-11-02 | 2017-04-26 | 北京宏瑞汽车科技股份有限公司 | Transverse plate spring type independent suspension structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107234934A (en) | 2017-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107234934B (en) | A kind of multi-connecting-rod separated suspension for commercial vehicle drive axle | |
| KR0180370B1 (en) | Steering wheel suspension system | |
| CN102317091B (en) | Suspension device | |
| JP6803234B2 (en) | Vehicle suspension | |
| CN210680319U (en) | Suspension system | |
| EP1789268B1 (en) | Wheel suspension | |
| CN107571698B (en) | Front suspension structure of automobile | |
| CN205573522U (en) | Horizontal shock attenuation arm independent suspension of multi -link | |
| CN110884312A (en) | Electric automobile and multi-connecting-rod rear suspension thereof | |
| WO2017021181A1 (en) | Pneumatic axle suspension for a rear axle of a vehicle | |
| CN206406716U (en) | Automobile integral bridge type suspension frame structure | |
| US20190023093A1 (en) | Motor vehicle with an independent suspension | |
| CN207697409U (en) | Multi-link lever suspension fork | |
| KR101315489B1 (en) | Structure of subframe for vehicle | |
| CN108819649A (en) | Transverse leaf spring structure and double transverse arm independent rear suspensions | |
| CN106167068B (en) | Independent suspension mechanism with rear wheel capable of vertically jumping for motor vehicle | |
| AU2016296919B2 (en) | Pneumatic axle suspension for a rear axle of a vehicle | |
| US3102736A (en) | Wheel suspension system | |
| CN106347060A (en) | Balanced suspension and automobile | |
| CN209240807U (en) | Automobile rear suspension system and automobile | |
| CN207595076U (en) | A kind of watts link truck structure driving cab rear suspension | |
| CN208198032U (en) | Rear suspension for vehicle and the vehicle with it | |
| CN113795394A (en) | Rear axle for a two-track vehicle and two-track vehicle having such a rear axle | |
| CN105667608A (en) | Two-way damping type cab rear suspension device | |
| CN206030986U (en) | Suspension |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231227 Address after: No. 705, building 2, Guantang R & D center, No. 10, Shuangren Road, Liudong New District, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Kunling Technology Co.,Ltd. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: WUHAN University OF TECHNOLOGY |