CN107499397B - Resettable rear suspension system - Google Patents
Resettable rear suspension system Download PDFInfo
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- CN107499397B CN107499397B CN201710760527.8A CN201710760527A CN107499397B CN 107499397 B CN107499397 B CN 107499397B CN 201710760527 A CN201710760527 A CN 201710760527A CN 107499397 B CN107499397 B CN 107499397B
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- shock absorber
- arm part
- cross beam
- bracket
- air pipe
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- 239000000725 suspension Substances 0.000 title claims abstract description 90
- 239000006096 absorbing agent Substances 0.000 claims abstract description 67
- 230000035939 shock Effects 0.000 claims abstract description 67
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 description 4
- 238000000429 assembly Methods 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
- B62D33/0608—Cabs insulated against vibrations or noise, e.g. with elastic suspension pneumatic or hydraulic suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/0604—Cabs insulated against vibrations or noise, e.g. with elastic suspension
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The utility model provides a but back suspension that resets, includes suspension beam, falls V type crossbeam, vertical shock absorber, horizontal shock absorber and lower carriage, the both ends of vertical shock absorber are connected with suspension beam, lower carriage, and the both ends of horizontal shock absorber are connected with suspension beam, falls V type crossbeam, and the both ends of falling V type crossbeam are connected with the lower carriage, and the altitude valve assembly that sets up on the falling V type crossbeam communicates with each other with vertical shock absorber through the vent line, and the both ends top and the hydraulic pressure phase lock of suspension beam are connected, and the support upper portion in the lower carriage is asymmetric structure along the axis of support lower part. The design is strong in transverse rigidity, good in transverse vibration reduction effect, capable of attenuating vibration in four directions of front, back, left and right of the cab, strong in adjustability and wide in application range, and accuracy of falling fixation of the cab can be improved.
Description
Technical Field
The utility model relates to automobile rear suspension equipment, in particular to a resettable rear suspension system which is particularly suitable for enhancing transverse rigidity and improving transverse vibration reduction effect.
Background
At present, a truck cab is connected with a frame through a rear suspension system, and the rear suspension system has the functions of supporting the cab, buffering vibration generated by uneven pavement and improving riding comfort.
The utility model patent with the authority notice number of CN202163507U and the authority notice day of 2012 of 3 months of 14 days discloses a cab rear suspension device, which comprises a suspension beam assembly, a pair of combined spring shock absorber assemblies and a pair of rear suspension vertical beams, wherein the pair of rear suspension vertical beams are respectively and vertically arranged at the lower parts of the pair of combined spring shock absorber assemblies, two ends of the suspension beam assembly are respectively connected with the upper ends of the pair of combined spring shock absorber assemblies, and transverse shock absorber assemblies are respectively connected between the pair of rear suspension vertical beams and the suspension beam assembly and are obliquely arranged. Although the design can attenuate vertical vibration through the combined spring damper assembly and the transverse damper assembly limits the transverse swing of the cab, as the suspension beam is arranged on the cab and moves along with the cab assembly, the chassis end is not provided with a transverse support piece and is connected with the cab only by the transverse damper, so that the transverse rigidity is weaker, and when a vehicle runs on a bumpy road, the cab can obviously tilt left and right and swing, and the comfort is poor.
The disclosure of this background section is only intended to increase the understanding of the general background of the present patent application and should not be taken as an admission or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The utility model aims to overcome the defects and problems of weak transverse rigidity and poor transverse vibration reduction effect in the prior art and provides a resettable rear suspension system with strong transverse rigidity and good transverse vibration reduction effect.
In order to achieve the above object, the technical solution of the present utility model is: the utility model provides a but back suspension system resets, includes suspension beam, vertical shock absorber, horizontal shock absorber and lower carriage, the both ends of suspension beam are connected with the top of a vertical shock absorber respectively, and the bottom of vertical shock absorber is connected with the top of a lower carriage that it corresponds, and the middle part of suspension beam is connected with horizontal shock absorber;
the back suspension system can restore to the throne still includes one and is located the inverted V type crossbeam between suspended beam, the lower carriage, inverted V type crossbeam is including the left arm portion, well top, the right arm portion that connect gradually, the bottom of left arm portion is connected with the top of left side lower carriage, and the top of left arm portion is connected with the left end at well top, and the right-hand member at well top is connected with the top of right arm portion, and the bottom of right arm portion is connected with the top of right side lower carriage, and the position near well top on left arm portion, the right arm portion is connected with the bottom of suspended beam through a transverse shock absorber respectively.
The left arm part and the right arm part are of oblique strip-shaped structures, and the middle top part is of a flat arc-shaped structure; the bottom edges of the bottom ends of the left arm part and the right arm part are horizontal edges.
The inverted V-shaped cross beam is formed by clamping two front cross beam plates and rear cross beam plates which are identical in structure, the front cross beam plates and the rear cross beam plates are arranged in a front-back parallel mode, and a rotating shaft hinged with the bottom ends of the transverse shock absorbers is arranged between the front cross beam plates and the rear cross beam plates.
The vertical vibration damper and the horizontal vibration damper are vibration dampers with springs or air bags, and the vibration dampers are hydraulic, pneumatic or variable damping vibration dampers.
When the vertical shock absorber is a shock absorber with an air bag, the right arm part is provided with a height valve assembly, one end of the height valve assembly is communicated with the vertical shock absorber through a ventilation pipeline, and the other end of the height valve assembly is connected with a height valve adjusting rod support arranged on the side part of the suspension beam after sequentially passing through a height valve swinging rod and a height valve adjusting rod.
The ventilation pipeline comprises a first air pipe, a second air pipe, a third air pipe and a tee joint, one end of the height valve assembly is communicated with one air port of the tee joint through the first air pipe, and the other two air ports of the tee joint are respectively communicated with a vertical shock absorber after passing through the second air pipe and the third air pipe.
The side of the left arm part is provided with a left binding ring for the second air pipe to pass through, the side of the middle top part is provided with a middle binding ring for being connected with a tee joint, and the side of the right arm part is provided with a right binding ring for the first air pipe and the third air pipe to pass through.
The bottom of the left and right ends of the suspension beam is respectively connected with the top end of a vertical shock absorber, the top of the left and right ends of the suspension beam is respectively connected with a hydraulic lock, and the side surface of the suspension beam is provided with a side binding ring for the hydraulic pipeline to pass through.
The middle part of the hydraulic lock is provided with a concave lock groove, and a lock hook is arranged in the lock groove.
The lower support comprises a support lower part and a support upper part, the top of the support upper part is connected with the bottom ends of the vertical shock absorber and the inverted V-shaped cross beam, and the bottom of the support upper part is connected with the top of the support lower part; the upper part of the bracket is in an asymmetric structure along the central axis of the lower part of the bracket.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the resettable rear suspension system, the inverted V-shaped cross beam is additionally arranged between the suspension beam and the lower bracket, the middle part of the inverted V-shaped cross beam is higher than two ends, the bottom ends of the left arm part and the right arm part in the inverted V-shaped cross beam are respectively connected with the top of the lower bracket, and the parts, close to the middle top, of the left arm part and the right arm part are respectively connected with the bottom of the suspension beam through the transverse shock absorber. Therefore, the utility model has stronger transverse rigidity and better transverse vibration reduction effect.
2. The utility model relates to a resettable rear suspension system, which comprises a vertical shock absorber and a transverse shock absorber, wherein the upper end and the lower end of the vertical shock absorber are respectively connected with a suspension beam and a lower bracket, the upper end and the lower end of the transverse shock absorber are respectively connected with a suspension beam and an inverted V-shaped cross beam, and the two bottom ends of the inverted V-shaped cross beam are connected with the top of the lower bracket. Therefore, the utility model can attenuate the vibration of the cab in four directions, namely front, back, left and right, and has better buffering effect.
3. In the design, the hydraulic locks are mediated by the suspension beam, so that the suspension beam is not required to be directly connected with a shock absorber, the action of the hydraulic locks is prevented from being influenced by the non-rigid characteristic of the shock absorber, the relative positions of the two hydraulic locks are limited by the suspension beam, the stable distance between the left hydraulic lock and the right hydraulic lock is ensured, and a cab can be more accurately dropped into a lock groove of the hydraulic locks, so that the locking hook is convenient to fix the hydraulic locks. Therefore, the utility model can improve the accuracy of the falling fixation of the cab.
4. The utility model relates to a resettable rear suspension system, which comprises a lower bracket and an upper bracket, wherein the upper bracket is of an asymmetric structure along the central axis of the lower bracket, namely the central axis of the lower bracket is taken as a symmetrical line, and the upper bracket is of an asymmetric structure. Therefore, the lower bracket provided by the utility model has an asymmetric structure, and has the advantages of strong adjustability and wide application range.
Drawings
Fig. 1 is a schematic perspective view of the present utility model.
Fig. 2 is a front view of the present utility model.
Fig. 3 is a schematic view of the structure of the inverted V-shaped beam of fig. 1.
Fig. 4 is a schematic diagram of the connection of the inverted V-shaped cross beam to the lower bracket in the present utility model.
Fig. 5 is a top view of fig. 4.
FIG. 6 is a schematic illustration of the connection of an inverted V-beam to a transverse shock absorber in accordance with the present utility model.
Fig. 7 is a top view of fig. 6.
Fig. 8 is a schematic perspective view of the suspension beam of fig. 1.
Fig. 9 is a schematic perspective view of the lower bracket in the present utility model.
Fig. 10 is an enlarged schematic view of the vertical and horizontal connection portions of fig. 9.
Fig. 11 is a schematic perspective view of the lower bracket of the present utility model when viewed from the back.
Fig. 12 is an enlarged schematic view of the vertical and horizontal connection portions of fig. 11.
FIG. 13 is a schematic diagram showing the symmetry of the lower part of the inner bracket and the upper part of the bracket in the lower bracket.
In the figure: vertical damper 1, lateral damper 2, inverted V-shaped cross member 3, bottom edge 30, left arm 31, middle top 32, right arm 33, front cross member plate 34, rear cross member plate 35, rotation shaft 36, left binding ring 37, middle binding ring 38, right binding ring 39, suspension beam 4, side binding ring 41, hydraulic line 42, lower bracket 5, bracket lower portion 51, lower bottom plate 511, corner end fixing hole 512, middle through hole 513, upper lightening hole 514, lower lightening hole 515, fender lower fixing hole 516, reinforcing rib 517, bracket upper portion 52, vertical connecting portion 53, lateral connecting portion 54, lateral plate 541, lateral plate 542, short clamping plate 543, long clamping plate 544, clamping plate notch 545 the horizontal side plate 55, the horizontal fixing hole 551, the top platform 56, the top flat plate 561, the top side plate 562, the vertical fixing hole 563, the special-shaped base 57, the special-shaped middle plate 571, the special-shaped side plate 572, the upper boss 58, the left window 581, the right window 582, the inclined closing plate 59, the window-type weight reducing hole 591, the altitude valve assembly 6, the altitude valve rocking rod 61, the altitude valve adjusting rod 62, the altitude valve adjusting rod bracket 63, the ventilation pipeline 7, the first air pipe 71, the second air pipe 72, the third air pipe 73, the tee joint 74, the hydraulic lock 8, the lock groove 81, the lock hook 82, the upper base 9, the upper base plate 91, the upper side plate 92, the front hollow groove 93, the back weight reducing groove 94 and the fender upper fixing hole 95.
Detailed Description
The utility model is described in further detail below with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 13, a resettable rear suspension system comprises a suspension beam 4, vertical dampers 1, transverse dampers 2 and lower brackets 5, wherein two ends of the suspension beam 4 are respectively connected with the top end of one vertical damper 1, the bottom end of the vertical damper 1 is connected with the top of the corresponding lower bracket 5, and the middle part of the suspension beam 4 is connected with the transverse dampers 2;
the resettable rear suspension system further comprises an inverted-V-shaped cross beam 3 positioned between the suspension beam 4 and the lower support 5, the inverted-V-shaped cross beam 3 comprises a left arm part 31, a middle top part 32 and a right arm part 33 which are sequentially connected, the bottom end of the left arm part 31 is connected with the top of the left lower support 5, the top end of the left arm part 31 is connected with the left end of the middle top part 32, the right end of the middle top part 32 is connected with the top end of the right arm part 33, the bottom end of the right arm part 33 is connected with the top of the right lower support 5, and the parts, close to the middle top part 32, of the left arm part 31 and the right arm part 33 are respectively connected with the bottom of the suspension beam 4 through a transverse shock absorber 2.
The left arm part 31 and the right arm part 33 are of oblique strip structures, and the middle top part 32 is of a flat arc structure; the bottom edges 30 of the bottom ends of the left arm part 31 and the right arm part 33 are horizontal edges.
The inverted V-shaped cross beam 3 is formed by clamping a front cross beam plate 34 and a rear cross beam plate 35 which are identical in structure, the front cross beam plate 34 and the rear cross beam plate 35 are arranged in a front-back parallel mode, and a rotating shaft 36 hinged with the bottom end of the transverse shock absorber 2 is arranged between the front cross beam plate 34 and the rear cross beam plate 35.
The vertical vibration damper 1 and the horizontal vibration damper 2 are vibration dampers with springs or air bags, and the vibration dampers are hydraulic, pneumatic or variable damping vibration dampers.
When the vertical shock absorber 1 is a shock absorber with an air bag, the right arm 33 is provided with a height valve assembly 6, one end of the height valve assembly 6 is communicated with the vertical shock absorber 1 through a ventilation pipeline 7, and the other end of the height valve assembly 6 is connected with a height valve adjusting rod support 63 arranged on the side part of the suspension beam 4 after sequentially passing through a height valve rocking rod 61 and a height valve adjusting rod 62.
The ventilation pipeline 7 comprises a first air pipe 71, a second air pipe 72, a third air pipe 73 and a tee joint 74, one end of the height valve assembly 6 is communicated with one air port of the tee joint 74 through the first air pipe 71, and the other two air ports of the tee joint 74 are respectively communicated with the vertical shock absorber 1 after passing through the second air pipe 72 and the third air pipe 73.
The left arm 31 is provided with a left binding ring 37 on a side surface for the passage of a second air pipe 72, the middle top 32 is provided with a middle binding ring 38 on a side surface for the passage of a third air pipe 73 and a right binding ring 39 on a side surface for the passage of a first air pipe 71 and a third air pipe 73, and the middle binding ring 38 is connected with a tee 74.
The bottoms of the left end and the right end of the suspension beam 4 are respectively connected with the top end of one vertical shock absorber 1, the tops of the left end and the right end of the suspension beam 4 are respectively connected with one hydraulic lock 8, and the side surface of the suspension beam 4 is provided with a side binding ring 41 for a hydraulic pipeline 42 to pass through.
The middle part of the hydraulic lock 8 is provided with a concave lock groove 81, and a lock hook 82 is arranged in the lock groove 81.
The lower bracket 5 comprises a bracket lower part 51 and a bracket upper part 52, the top of the bracket upper part 52 is connected with the bottom ends of the vertical shock absorber 1 and the inverted V-shaped cross beam 3, and the bottom of the bracket upper part 52 is connected with the top of the bracket lower part 51; the upper bracket portion 52 has an asymmetrical structure along the central axis of the lower bracket portion 51.
The principle of the utility model is explained as follows:
the lower bracket is of an asymmetric structure: the lower support is characterized in that the central axis of the lower part of the support is taken as a symmetrical line, the upper part of the support is of an asymmetric structure, the left lower support and the right lower support are exchanged (the left lower support and the right lower support are of mirror symmetry structures) under the condition of keeping the fixed point of the lower support and the frame unchanged, the space positions of the shock absorber mounting holes on the two lower supports are changed, and the positions of the suspension beam connected with the shock absorber and the hydraulic lock on the suspension beam are changed, so that the aim of adjusting the interface of a vehicle body of a cab is fulfilled, the adjustability is increased, and the application range is enlarged.
And a height valve assembly: when the cab moves downwards, the air bag vibration damper (vertical vibration damper) is compressed, the suspension Liang Jinggao-degree valve adjusting rod support drives the height valve adjusting rod to move downwards, the height valve adjusting rod drives the height valve swinging rod to rotate, so that the air inlet valve in the height valve assembly is controlled to be opened, high-pressure air enters the air inlet valve in the height valve assembly through a pipeline and enters the air ventilation pipeline, and is distributed to the air bag vibration dampers on the left side and the right side through the tee joint, and the air bag in the air bag vibration damper is supplemented by the high-pressure air, so that the impact is reduced and the cab is jacked up. When the cab moves upwards, the process is reversed. The air bag is continuously inflated and deflated, so that the vibration reduction purpose is achieved.
Suspension beam and hydraulic lock: the left hydraulic lock and the right hydraulic lock are connected by the suspension beam, so that the relative position of the hydraulic lock can be effectively ensured to be fixed. If there is no suspension beam, the hydraulic lock can be directly connected with the vertical shock absorber and the transverse shock absorber, at this time, because the shock absorber is a non-rigid part, the length is not fixed, the space between the left hydraulic lock and the right hydraulic lock is unstable, and the accurate falling of the cab into the lock hook of the hydraulic lock can not be ensured to be locked and fixed.
Example 1:
referring to fig. 1 to 13, a resettable rear suspension system comprises a suspension beam 4, vertical dampers 1, transverse dampers 2 and lower brackets 5, wherein two ends of the suspension beam 4 are respectively connected with the top end of one vertical damper 1, the bottom end of the vertical damper 1 is connected with the top of the corresponding lower bracket 5, and the middle part of the suspension beam 4 is connected with the transverse dampers 2;
the resettable rear suspension system further comprises an inverted-V-shaped cross beam 3 positioned between the suspension beam 4 and the lower support 5, the inverted-V-shaped cross beam 3 comprises a left arm part 31, a middle top part 32 and a right arm part 33 which are sequentially connected, the bottom end of the left arm part 31 is connected with the top of the left lower support 5, the top end of the left arm part 31 is connected with the left end of the middle top part 32, the right end of the middle top part 32 is connected with the top end of the right arm part 33, the bottom end of the right arm part 33 is connected with the top of the right lower support 5, and the parts, close to the middle top part 32, of the left arm part 31 and the right arm part 33 are respectively connected with the bottom of the suspension beam 4 through a transverse shock absorber 2.
Example 2:
the basic content is the same as in example 1, except that:
the left arm part 31 and the right arm part 33 are of oblique strip structures, and the middle top part 32 is of a flat arc structure; the bottom edges of the bottom ends of the left arm part 31 and the right arm part 33 are horizontal edges. The inverted V-shaped cross beam 3 is formed by clamping a front cross beam plate 34 and a rear cross beam plate 35 which are identical in structure, the front cross beam plate 34 and the rear cross beam plate 35 are arranged in a front-back parallel mode, and a rotating shaft 36 hinged with the bottom end of the transverse shock absorber 2 is arranged between the front cross beam plate 34 and the rear cross beam plate 35.
Example 3:
the basic content is the same as in example 1, except that:
when the vertical vibration damper 1 is a vibration damper with an air bag, the right arm 33 is provided with a height valve assembly 6, one end of the height valve assembly 6 is communicated with the vertical vibration damper 1 through the ventilation pipeline 7, and the other end of the height valve assembly 6 is connected with a height valve adjusting rod bracket 63 arranged on the side part of the suspension beam 4 after sequentially passing through a height valve rocking rod 61 and a height valve adjusting rod 62. The ventilation pipeline 7 comprises a first air pipe 71, a second air pipe 72, a third air pipe 73 and a tee joint 74, one end of the height valve assembly 6 is communicated with one air port of the tee joint 74 through the first air pipe 71, and the other two air ports of the tee joint 74 are respectively communicated with the vertical shock absorber 1 after passing through the second air pipe 72 and the third air pipe 73. The left arm 31 is provided with a left binding ring 37 on a side surface for the passage of a second air pipe 72, the middle top 32 is provided with a middle binding ring 38 on a side surface for the passage of a third air pipe 73 and a right binding ring 39 on a side surface for the passage of a first air pipe 71 and a third air pipe 73, and the middle binding ring 38 is connected with a tee 74.
Example 4:
the basic content is the same as in example 1, except that:
the bottoms of the left end and the right end of the suspension beam 4 are respectively connected with the top end of one vertical shock absorber 1, the tops of the left end and the right end of the suspension beam 4 are respectively connected with one hydraulic lock 8, and the side surface of the suspension beam 4 is provided with a side binding ring 41 for a hydraulic pipeline 42 to pass through. The middle part of the hydraulic lock 8 is provided with a concave lock groove 81, and a lock hook 82 is arranged in the lock groove 81.
Example 5:
the basic content is the same as in example 1, except that:
the lower bracket 5 comprises a bracket lower part 51 and a bracket upper part 52, the top of the bracket upper part 52 is connected with the bottom ends of the vertical shock absorber 1 and the inverted V-shaped cross beam 3, and the bottom of the bracket upper part 52 is connected with the top of the bracket lower part 51; the upper bracket portion 52 has an asymmetrical structure along the central axis of the lower bracket portion 51.
Example 6:
the basic content is the same as in example 5, except that:
the top end of the lower bracket part 51 is connected with the bottom end of the upper bracket part 52, the top end of the upper bracket part 52 comprises a vertical connecting part 53 and a transverse connecting part 54, the vertical connecting part 53 is connected with the bottom of the suspension beam 4 through the vertical shock absorber 1, the transverse connecting part 54 is connected with the bottom end of the transverse shock absorber 2 through the inverted V-shaped cross beam 3, and the top end of the transverse shock absorber 2 is connected with the bottom of the suspension beam 4; the lower bracket part 51 has a bilateral symmetry, and the upper bracket part 52 has a bilateral asymmetry along the central axis of the lower bracket part 51. Preferably, the lower bracket part 51 has a laterally symmetrical waist-shaped structure, the top and bottom edges of the lower bracket part 51 are both horizontal edges, and the left and right sides of the lower bracket part 51 are both arc edges.
Example 7:
the basic content is the same as in example 6, except that:
the lower bracket portion 51 includes a lower bottom plate 511, corner fixing holes 512 and a middle through hole 513, wherein each of the four corners of the lower bottom plate 511 is provided with a corner fixing hole 512, and the middle part of the lower bottom plate 511 is provided with a middle through hole 513. The parts above and below the middle through hole 513 on the lower bottom plate 511 are respectively provided with an upper lightening hole 514 and a lower lightening hole 515, the top of the upper lightening hole 514 is arranged near the top edge of the lower bottom plate 511, the bottom of the upper lightening hole 514 is higher than the middle through hole 513, the top of the lower lightening hole 515 is lower than the middle through hole 513, and the bottom of the lower lightening hole 515 is arranged near the bottom edge of the lower bottom plate 511. The lower bottom plate 511 is provided with a lower fender fixing hole 516 at each of the left and right sides of the lower lightening hole 515, and the lower fender fixing hole 516 and the two corner fixing holes 512 located above and below the same side are located on the same side of the lower bracket portion 51. Reinforcing ribs 517 are arranged between the lower fixing holes 516 of the mud guard and the corner fixing holes 512, between the upper two lower fixing holes 516 of the mud guard and the middle through hole 513, and between the lower two lower fixing holes 516 of the mud guard.
Example 8:
the basic content is the same as in example 6, except that:
the bracket upper part 52 comprises an upper base body 9, a vertical connecting part 53 and a transverse connecting part 54 which are connected with the top of the upper base body; the transverse connection part 54 comprises a pair of transverse side plates 55 which are symmetrically arranged, and transverse fixing holes 551 which are connected with the inverted V-shaped cross beam 3 are formed in the top of the transverse side plates 55; the vertical connecting portion 53 includes a top platform 56 and a special-shaped base 57 which are both hollow structures, the top platform 56 includes a top flat plate 561 and a top side plate 562 connected to two sides of the top flat plate, the special-shaped base 57 includes a special-shaped middle plate 571 and special-shaped side plates 572 connected to two sides of the special-shaped middle plate, a vertical fixing hole 563 connected to the vertical damper 1 is formed in the middle of the top flat plate 561, the bottom of the top side plate 562 is connected to the top of the special-shaped side plate 572, the bottom of the special-shaped side plate 572 is connected to the top of the upper base 9, the middle of the adjacent special-shaped side plate 572 is connected to two sides of the special-shaped middle plate 571 sandwiched therebetween, an upper boss 58 extending out of the transverse connecting portion 54 is arranged on a portion near the joint of the special-shaped side plate 572 and the top side plate 562, the upper boss 58 is of the hollow structure, the upper boss 58 is connected to the special-shaped side plate 572, the top flat plate 561 and the top side plate 562 are connected simultaneously, and the upper boss 58 is connected to the bottom of the transverse side plate 55. The transverse connection portion 54 further includes a transverse plate 541 and a transverse and vertical plate 542, two sides of the transverse plate 541 are respectively connected with a middle portion of one transverse side plate 55, a bottom portion of the transverse plate 541 is connected with a top portion of the transverse and vertical plate 542 through a special-shaped middle plate 571, a bottom portion of the transverse and vertical plate 542 is connected with a top portion of the upper base 9, and the transverse and vertical plate 542 divides the cavity in the upper boss 58 into a left window 581 and a right window 582. The upper base 9 includes an upper bottom plate 91 and a pair of upper side plates 92 connected to two sides thereof, the top of the upper side plate 92 is connected to the bottom of the corresponding profiled side plate 572, and the top of the upper bottom plate 91 is connected to the bottom of the horizontal and vertical plate 542; the upper bottom plate 91 is in a wave-shaped structure from bottom to top, the front surface of the upper bottom plate 91 and the two upper side plates 92 jointly enclose a front hollow groove 93 communicated with the left window 581 and the right window 582, and the back surface of the upper bottom plate 91 and the two upper side plates 92 jointly enclose a concave back surface weight-reducing groove 94. Preferably, two fender upper fixing holes 95 are formed in the bottom of the upper base plate 91 near the bracket lower portion 51, and the two fender upper fixing holes 95 are located between the uppermost two corner fixing holes 512; a window-type lightening hole 591 is formed in the portion of the special-shaped side plate 572 near the inclined closing plate 59.
Claims (9)
1. The utility model provides a but back suspension that resets, includes suspension beam (4), vertical shock absorber (1), horizontal shock absorber (2) and lower carriage (5), the both ends of suspension beam (4) are connected with the top of a vertical shock absorber (1) respectively, and the bottom of vertical shock absorber (1) is connected with the top of a lower carriage (5) that corresponds rather than, and the middle part of suspension beam (4) is connected with horizontal shock absorber (2), its characterized in that:
the rear suspension system capable of resetting further comprises an inverted V-shaped cross beam (3) positioned between the suspension beam (4) and the lower support (5), the inverted V-shaped cross beam (3) comprises a left arm part (31), a middle top part (32) and a right arm part (33) which are sequentially connected, the bottom end of the left arm part (31) is connected with the top of the left lower support (5), the top end of the left arm part (31) is connected with the left end of the middle top part (32), the right end of the middle top part (32) is connected with the top end of the right arm part (33), the bottom end of the right arm part (33) is connected with the top of the right lower support (5), and the parts, close to the middle top part (32), of the left arm part (31) and the right arm part (33) are respectively connected with the bottom of the suspension beam (4) through a transverse shock absorber (2);
the lower bracket (5) comprises a bracket lower part (51) and a bracket upper part (52), wherein the top of the bracket upper part (52) is connected with the bottom ends of the vertical shock absorber (1) and the inverted V-shaped cross beam (3), and the bottom of the bracket upper part (52) is connected with the top of the bracket lower part (51); the upper part (52) of the bracket is in an asymmetric structure along the central axis of the lower part (51) of the bracket;
the lower brackets (5) at the left and right ends are mirror symmetry structures, and when the shock absorber is applied, the positions of fixing points on the lower brackets (5) are kept unchanged, and the lower brackets (5) at the left and right ends are exchanged to change the spatial positions of the vertical connecting parts (53) and the transverse connecting parts (54) on the two lower brackets (5), so that the spatial positions of the connecting points connected with the vertical shock absorber (1) and the transverse shock absorber (2) are changed.
2. A resettable rear suspension system according to claim 1, wherein: the left arm part (31) and the right arm part (33) are of oblique strip-shaped structures, and the middle top part (32) is of a flat arc-shaped structure; the bottom edges (30) of the bottom ends of the left arm part (31) and the right arm part (33) are horizontal edges.
3. A resettable rear suspension system according to claim 1 or 2, wherein: the inverted V-shaped cross beam (3) is formed by clamping a front cross beam plate (34) and a rear cross beam plate (35) which are identical in structure, the front cross beam plate (34) and the rear cross beam plate (35) are arranged in a front-back parallel mode, and a rotating shaft (36) hinged with the bottom end of the transverse shock absorber (2) is arranged between the front cross beam plate (34) and the rear cross beam plate (35).
4. A resettable rear suspension system according to claim 1 or 2, wherein: the vertical vibration damper (1) and the transverse vibration damper (2) are vibration dampers with springs or air bags, and the vibration dampers are hydraulic, pneumatic or variable damping vibration dampers.
5. A resettable rear suspension system of claim 4, wherein: when the vertical shock absorber (1) is a shock absorber with an air bag, the right arm part (33) is provided with a height valve assembly (6), one end of the height valve assembly (6) is communicated with the vertical shock absorber (1) through a ventilation pipeline (7), and the other end of the height valve assembly (6) is connected with a height valve adjusting rod support (63) arranged on the side part of the suspension beam (4) after sequentially passing through a height valve swinging rod (61) and a height valve adjusting rod (62).
6. A resettable rear suspension system of claim 5, wherein: the ventilation pipeline (7) comprises a first air pipe (71), a second air pipe (72), a third air pipe (73) and a tee joint (74), one end of the Gao Dufa assembly (6) is communicated with one air port of the tee joint (74) through the first air pipe (71), and the other two air ports of the tee joint (74) are respectively communicated with one vertical shock absorber (1) through the second air pipe (72) and the third air pipe (73).
7. A resettable rear suspension system of claim 6, wherein: a left binding ring (37) is arranged on the side face of the left arm part (31) for a second air pipe (72) to pass through, a middle binding ring (38) is arranged on the side face of the middle top part (32) to be connected with a tee joint (74), and a right binding ring (39) is arranged on the side face of the right arm part (33) for a first air pipe (71) and a third air pipe (73) to pass through.
8. A resettable rear suspension system according to claim 1 or 2, wherein: the bottoms of the left end and the right end of the suspension beam (4) are respectively connected with the top end of a vertical shock absorber (1), the tops of the left end and the right end of the suspension beam (4) are respectively connected with a hydraulic lock (8), and side binding rings (41) are arranged on the side face of the suspension beam (4) so as to enable a hydraulic pipeline (42) to pass through.
9. A resettable rear suspension system of claim 8, wherein: the middle part of the hydraulic lock (8) is provided with a concave lock groove (81), and a lock hook (82) is arranged in the lock groove (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760527.8A CN107499397B (en) | 2017-08-30 | 2017-08-30 | Resettable rear suspension system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760527.8A CN107499397B (en) | 2017-08-30 | 2017-08-30 | Resettable rear suspension system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107499397A CN107499397A (en) | 2017-12-22 |
| CN107499397B true CN107499397B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710760527.8A Active CN107499397B (en) | 2017-08-30 | 2017-08-30 | Resettable rear suspension system |
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| Country | Link |
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| CN (1) | CN107499397B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113942588B (en) * | 2021-11-26 | 2023-03-03 | 东风商用车有限公司 | Modularized and lightweight cab rear suspension device |
| CN113942589B (en) * | 2021-11-26 | 2023-03-03 | 东风商用车有限公司 | Stamping tailor-welding type rear suspension lower bracket for rear suspension of cab |
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| CN207843088U (en) * | 2017-08-30 | 2018-09-11 | 东风商用车有限公司 | Resettable rear suspension system |
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2017
- 2017-08-30 CN CN201710760527.8A patent/CN107499397B/en active Active
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|---|---|---|---|---|
| JPH09109921A (en) * | 1995-10-24 | 1997-04-28 | Nissan Diesel Motor Co Ltd | Cab air-suspension device |
| KR20030049213A (en) * | 2001-12-14 | 2003-06-25 | 현대자동차주식회사 | variable wheel geometry suspension system for automotive vehicles |
| CN2581221Y (en) * | 2002-11-15 | 2003-10-22 | 中国第一汽车集团公司 | Cab rear suspender |
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|---|---|
| CN107499397A (en) | 2017-12-22 |
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