CN113942588A - Modularized and lightweight cab rear suspension device - Google Patents
Modularized and lightweight cab rear suspension device Download PDFInfo
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- CN113942588A CN113942588A CN202111423155.2A CN202111423155A CN113942588A CN 113942588 A CN113942588 A CN 113942588A CN 202111423155 A CN202111423155 A CN 202111423155A CN 113942588 A CN113942588 A CN 113942588A
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- 239000000725 suspension Substances 0.000 title claims abstract description 233
- 239000006096 absorbing agent Substances 0.000 claims abstract description 114
- 230000035939 shock Effects 0.000 claims abstract description 114
- 230000003014 reinforcing effect Effects 0.000 claims description 29
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 238000005728 strengthening Methods 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 6
- 238000005266 casting Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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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
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Abstract
The application relates to a modularization and lightweight driver's cabin rear suspension device belongs to commercial car driver's cabin suspension support technical field, includes: the rear suspension assembly comprises an upper cross beam, a lower cross beam positioned below the upper cross beam and vertical shock absorbers positioned at two ends of the lower cross beam; the rear suspension lower support is provided with two rear suspension lower supports which are respectively fixed at two ends of the lower cross beam, the top of the rear suspension lower support is provided with a shock absorber connecting end for fixing the vertical shock absorber, the bottom of the rear suspension lower support is a frame connecting section, and the frame connecting section is offset towards the axis direction far away from the shock absorber connecting end along the X axis. When the frame connecting section is positioned on the rear side of the axis of the connecting end of the shock absorber, the cab rear suspension device is adapted to a standard cab; when the frame connecting section is positioned on the front side of the axis of the shock absorber connecting end, the cab rear suspension device is adapted to the cab with the lengthened plate, and the problem of position interference of a rear suspension lower bracket and other functional devices of the frame is solved.
Description
Technical Field
The application relates to the technical field of suspension supports of commercial vehicle cabs, in particular to a modularized and light cab rear suspension device.
Background
The rear suspension of the cab of the heavy truck is an important component of a cab suspension system, is arranged between the rear part of the cab and a frame, and mainly plays a role in supporting the cab of the heavy truck, simultaneously attenuates the vibration and impact transmitted to the cab by uneven excitation of a road surface during the running of a vehicle, guides the vertical motion of the cab relative to the frame, prevents the cab from tilting and deflecting, and also plays a role in locking and stabilizing the cab for a flat-headed reversible cab of the heavy truck.
With the length of the cab, the overall position of the rear suspension of the cab tends to change, which causes the following problems: the installation of other functional devices of the frame can interfere the installation of the rear suspension of the cab, and the variety of the rear suspension upper bracket is increased in order to avoid different functional devices of the frame. The problems lead to poor modularization function of the existing cab rear suspension structure, incapability of realizing generalization and modularization of the structure, increase of product types, and inconvenience in realization of platformization and generalization of products, and increase of risk and cost for developing new products.
Disclosure of Invention
The embodiment of the application provides a modularization and light-weighted driver's cabin rear overhang device to in order to solve among the related art for the different length driver's cabin structures of adaptation, the problem that the position produced interference is hung and other functional device of frame behind the driver's cabin.
The embodiment of the application provides a modularization and light-weighted driver's cabin rear overhang device, includes:
the rear suspension assembly comprises an upper cross beam, a lower cross beam positioned below the upper cross beam and vertical shock absorbers positioned at two ends of the lower cross beam and elastically supporting the upper cross beam, wherein the top ends of the vertical shock absorbers are connected with the upper cross beam;
the rear suspension lower support is provided with two parts which are respectively fixed at two ends of the lower cross beam, the top of the rear suspension lower support is provided with a shock absorber connecting end for fixing the vertical shock absorber, the bottom of the rear suspension lower support is a frame connecting section, and the frame connecting section is offset towards the axis direction far away from the shock absorber connecting end along the X axis.
In some embodiments: the top parts of the two ends of the upper cross beam are provided with rear suspension upper brackets for fixing a cab, and each rear suspension upper bracket comprises an upper bracket front vertical plate and an upper bracket rear vertical plate which are parallel to each other and are arranged at intervals;
the upper support top plate is positioned at the tops of the upper support front vertical plate and the upper support rear vertical plate and integrally connects the upper support front vertical plate and the upper support rear vertical plate, and an upper support cantilever plate is arranged at one end, close to the upper support front vertical plate, of the upper support top plate;
cab mounting holes are formed in the upper support top plate and the upper support cantilever plate, and the cab mounting holes are offset towards the axis direction far away from the shock absorber connecting end along the X axis.
In some embodiments: the top parts of the two ends of the upper cross beam are provided with hydraulic locks for fixing the rear suspension upper bracket, the bottoms of the front vertical plate of the upper bracket and the rear vertical plate of the upper bracket are provided with fixing bolts connected with the hydraulic locks, and the fixing bolts are sleeved with symmetrically arranged guide taper sleeves;
one side that riser is close to riser before the upper bracket behind the upper bracket is equipped with the upper bracket limiting plate of being connected with riser is perpendicular behind the upper bracket, the upper bracket limiting plate is located the top of hydraulic pressure lock, be equipped with the upper bracket damping pad between upper bracket limiting plate and the hydraulic pressure lock.
In some embodiments: the rear suspension upper bracket can be changed in direction from front to back on the upper cross beam, so that the cab mounting hole is located on the front side or the rear side of the axis of the shock absorber connecting end along the X-axis direction, and the frame connecting section is located on the front side or the rear side of the axis of the shock absorber connecting end along the X-axis direction.
In some embodiments: the top of the rear suspension lower support is also provided with a lower beam connecting end for fixing the lower beam, the lower beam connecting end is fixedly connected with the end part of the lower beam through a bolt, and the bottom of the lower beam connecting end and the bottom of the shock absorber connecting end are provided with transverse reinforcing ribs;
the bottom of horizontal strengthening rib is equipped with many vertical strengthening ribs that are connected and extend to the bottom direction of frame connection section with the frame connection section, set up a plurality of frame mounting holes of being connected with the frame on the frame connection section, and a plurality of fender mounting holes of being connected with the fender.
In some embodiments: the periphery of the frame connecting section is provided with edge reinforcing ribs, the middle part of the frame connecting section is provided with a middle reinforcing rib in an X shape, and the end part of the middle reinforcing rib is connected with the edge reinforcing ribs;
the lower cross beam connecting end, the shock absorber connecting end, the frame connecting section, the transverse reinforcing ribs, the vertical reinforcing ribs, the edge reinforcing ribs and the middle reinforcing ribs are of an aluminum alloy material integrated casting forming structure.
In some embodiments: the lower cross beam comprises a front layer of inverted V-shaped aluminum alloy stamping plate and a rear layer of inverted V-shaped aluminum alloy stamping plate, two ends of the two layers of aluminum alloy stamping plates are fixedly connected with the connecting ends of the lower cross beams of the two rear suspension lower supports through bolts, and two sides of the top of each lower cross beam are respectively provided with a transverse shock absorber which elastically supports the upper cross beam.
In some embodiments: the two ends of the bottom of the upper cross beam are respectively provided with a first support hinged with the top end of the vertical shock absorber, the bottom of the upper cross beam is also provided with two second supports hinged with the top end of the transverse shock absorber, and the two second supports are positioned at the inner sides of the two first supports and are symmetrically arranged.
In some embodiments: the upper cross beam comprises a rectangular frame extending along the Y-axis direction, the first support and the second support are located at the bottom of the rectangular frame, a top lightening hole is formed in the top of the rectangular frame, a side lightening hole is formed in the side of the rectangular frame, hydraulic lock fixing grooves are formed in the tops of two ends of the rectangular frame, and the rectangular frame, the first support and the second support are of an aluminum alloy material integrated extrusion molding structure.
In some embodiments: the height control device is characterized in that a height valve for controlling the height of the vertical shock absorber is arranged on the lower cross beam, a connecting rod connected with the upper cross beam is arranged on the height valve, the connecting rod moves up and down along with the upper cross beam to trigger the height valve to adjust the height of the vertical shock absorber, and the height valve is connected with the vertical shock absorber through an air pipe.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides a modularized and lightweight cab rear suspension device, and the cab rear suspension device is provided with a rear suspension assembly, wherein the rear suspension assembly comprises an upper cross beam, a lower cross beam positioned below the upper cross beam and vertical shock absorbers positioned at two ends of the lower cross beam and elastically supporting the upper cross beam, and the top end of each vertical shock absorber is connected with the upper cross beam; the rear suspension lower support is provided with two rear suspension lower supports which are respectively fixed at two ends of the lower cross beam, the top of the rear suspension lower support is provided with a shock absorber connecting end for fixing the vertical shock absorber, the bottom of the rear suspension lower support is a frame connecting section, and the frame connecting section is offset towards the axis direction far away from the shock absorber connecting end along the X axis.
Therefore, the cab rear suspension device is provided with the rear suspension lower support respectively and fixedly arranged at the two ends of the lower cross beam, the top of the rear suspension lower support is provided with the shock absorber connecting end for fixing the vertical shock absorber, the bottom of the rear suspension lower support is a frame connecting section, and the frame connecting section is offset towards the axis direction far away from the shock absorber connecting end along the X axis. Under the condition that the mounting point of the cab rear suspension device on the frame is unchanged, when the frame connecting section is positioned at the rear side of the axis of the shock absorber connecting end, the cab rear suspension device is adapted to a standard cab; when the frame connecting section is positioned on the front side of the axis of the shock absorber connecting end, the cab rear suspension device is adapted to the lengthened cab. The cab rear suspension device can be adapted to cabs with different lengths under the condition that the mounting point on the frame is unchanged, and the problem of position interference of a rear suspension lower bracket and other functional devices of the frame is solved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a perspective view of the structure of an embodiment of the present application;
FIG. 2 is a front view of the structure of an embodiment of the present application;
FIG. 3 is a perspective view of a rear suspension lower bracket according to an embodiment of the present application;
FIG. 4 is a front view of a rear suspension lower bracket according to an embodiment of the present application;
FIG. 5 is a perspective view of a rear suspension upper bracket according to an embodiment of the present application;
FIG. 6 is a front view of a rear suspension upper bracket according to an embodiment of the present application;
FIG. 7 is a front view of a rear suspension assembly in accordance with an embodiment of the present application;
FIG. 8 is a perspective view of the upper cross member according to an embodiment of the present application;
FIG. 9 is a left side view of the structure of a standard version of the cab adapted according to an embodiment of the present application;
FIG. 10 is a left side view of the structure of a first elongated version of the cab adapted according to an embodiment of the present application;
FIG. 11 is a left side view of a second elongated version of the cab structure adapted according to embodiments of the present application;
FIG. 12 is a left side view of a third elongated cab structure adapted according to an embodiment of the present application;
fig. 13 is a perspective view of a structure in which the rear suspensions on the left and right sides of the embodiment of the present application are reversely mounted.
Reference numerals:
1. hanging the bracket on the back; 11. an upper bracket cantilever plate; 12. an upper bracket top plate; 13. an upper bracket limiting plate; 14. an upper bracket vibration damping pad; 15. a rear vertical plate of the upper bracket; 16. a guide taper sleeve; 17. fixing the bolt; 18. a front vertical plate of the upper bracket; 19. a cab mounting hole;
2. a rear suspension assembly; 21. hydraulic locking; 22. an upper cross beam; 23. a vertical shock absorber; 24. a lower cross beam; 25. an air tube; 26. a altitude valve; 27. a connecting rod; 28. hydraulically locking an oil pipe; 29. a transverse damper; 221. a hydraulic lock fixing groove; 222. a first bracket; 223. a second bracket; 224. side lightening holes; 225. a top lightening hole;
3. a rear suspension lower bracket; 31. a lower beam connecting end; 32. the shock absorber is connected with the end; 33. transverse reinforcing ribs; 34. a vertical reinforcing rib; 35. a frame mounting hole; 36. a fender mounting hole; 37. edge reinforcing ribs; 38. reserving a mounting hole; 39. a frame connecting section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a modularization and light-weighted driver's cabin rear overhang device, and it can solve for the different length driver's cabin structures of adaptation, and the problem that the position was interfered is produced with other functional device of frame to the suspension behind the driver's cabin.
Referring to fig. 1 to 4 and 7, an embodiment of the present application provides a modular and lightweight cab rear suspension device, including:
the rear suspension assembly 2 comprises an upper cross beam 22, a lower cross beam 24 positioned below the upper cross beam 22, and vertical shock absorbers 23 positioned at two ends of the lower cross beam 24 and elastically supporting the upper cross beam 22, wherein the top ends of the vertical shock absorbers 23 are connected with the upper cross beam 22. The vertical shock absorber 23 is preferably an air bag shock absorber or a spring shock absorber, and is connected between the upper cross member 22 and the lower cross member 24 to provide an elastic support function to the cab while attenuating vibration and impact transmitted to the cab due to uneven road excitation during the running of the vehicle.
The rear suspension lower support 3 is provided with a left rear suspension lower support 3 and a right rear suspension lower support 3, and the left rear suspension lower support 3 and the right rear suspension lower support 3 are respectively fixed at two ends of the lower cross beam 24. The top of the rear suspension lower support 3 is provided with a shock absorber connecting end 32 for fixing the vertical shock absorber 23, the bottom end of the vertical shock absorber 23 is fixedly connected with the shock absorber connecting end 32, a shock absorber mounting hole which penetrates through the shock absorber connecting end 32 from top to bottom and is used for connecting the bottom end of the vertical shock absorber 23 is formed in the shock absorber connecting end, the axis of the shock absorber mounting hole is collinear with the axis of the vertical shock absorber 23, and the axis of the shock absorber connecting end 32 is the axis of the shock absorber mounting hole.
The bottom of rear under-suspension bracket 3 is frame connection section 39, and frame connection section 39 is used for fixing rear under-suspension bracket 3 on the frame, and frame connection section 39 is along the X axle towards keeping away from the axis direction of shock absorber link end 32 offset, and the distance that frame connection section 39 of this application embodiment kept away from the axis offset of shock absorber link end 32 along the X axle is 50 mm. The frame connecting section 39 is located on the front side or the rear side of the axis of the shock absorber connecting end 32 in the X-axis direction to fit the cabs having different lengths. For example: the frame connecting section 39 is located on the rear side of the axis of the shock absorber connecting end 32 along the X-axis direction and is used for being matched with a standard cab, and the frame connecting section 39 is located on the front side of the axis of the shock absorber connecting end 32 along the X-axis direction and is used for being matched with an elongated cab. The X axis of the embodiment of the application is the front and back direction of the vehicle, namely the length direction of the vehicle; the Y axis is the left and right direction of the vehicle, namely the width direction of the vehicle; the Z-axis is the up-down direction of the vehicle, i.e., the height direction of the vehicle.
The cab rear suspension device of the embodiment of the application is characterized in that the rear suspension lower support 3 is fixedly arranged at two ends of the lower cross beam 24 respectively, the top of the rear suspension lower support 3 is provided with a shock absorber connecting end 32 for fixing the vertical shock absorber 23, the bottom of the rear suspension lower support 3 is provided with a frame connecting section 39, and the frame connecting section 39 is offset towards the axis direction far away from the shock absorber connecting end 32 along the X axis. Under the condition that the mounting point of the cab rear suspension device on the frame is unchanged, when the frame connecting section 39 is positioned at the rear side of the axis of the shock absorber connecting end 32, the cab rear suspension device is adapted to a standard version cab; when the frame connecting section 39 is located on the front side of the axis of the shock absorber connecting end 32, the cab rear suspension is adapted to the elongated cab. The cab rear suspension device can be adapted to cabs with different lengths under the condition that the mounting point on the frame is unchanged, and the problem of position interference of a rear suspension lower bracket and other functional devices of the frame is solved.
In some alternative embodiments: referring to fig. 1 and 2, and fig. 5 to 7, the embodiment of the present application provides a modular and lightweight rear suspension for a cab, wherein a rear suspension upper bracket 1 for fixing the cab is provided at the top of both ends of an upper cross beam 22 of the rear suspension for the cab, and the rear suspension upper bracket 1 includes an upper bracket front upright plate 18 and an upper bracket rear upright plate 15 which are parallel to each other and spaced apart from each other.
And an upper bracket top plate 12 which is located on the top of the upper bracket front vertical plate 18 and the upper bracket rear vertical plate 15 and connects the upper bracket front vertical plate 18 and the upper bracket rear vertical plate 15 into a whole, wherein an upper bracket cantilever plate 11 is arranged at one end of the upper bracket top plate 12 close to the upper bracket front vertical plate 18, and the upper bracket cantilever plate 11 extends towards the direction far away from the upper bracket rear vertical plate 15.
Rear suspension upper bracket 1 is reversible in direction on upper beam 22, i.e., upper bracket cantilever plate 11 is adjusted to the front side of upper beam 22 or upper bracket cantilever plate 11 is adjusted to the rear side of upper beam 22, so that cab mounting hole 19 is located on the front side or the rear side of the axis of shock absorber attachment end 32 along the X-axis. The rear suspension upper bracket 1 is reversed in the front-rear direction on the upper cross beam 22 to adapt to cabs with different lengths. For example, the rear suspension upper bracket 1 is turned forward on the upper cross beam 22 to fit a standard cab, and the rear suspension upper bracket 1 is turned backward on the upper cross beam 22 to fit an elongated cab.
In some alternative embodiments: referring to fig. 5 to 7, the embodiment of the present application provides a modular and lightweight cab rear suspension device, hydraulic locks 21 for fixing a rear suspension upper bracket 1 are disposed at tops of two ends of an upper cross beam 22 of the cab rear suspension device, a hydraulic lock oil pipe 28 for connecting the hydraulic locks 21 is fixed on the upper cross beam 22, and the hydraulic lock oil pipe 28 controls the hydraulic locks 21 to open and lock the rear suspension upper bracket 1 by injecting hydraulic oil into the hydraulic locks 21. The bottom of the upper support front vertical plate 18 and the bottom of the upper support rear vertical plate 15 are provided with fixing bolts 17 connected with a hydraulic lock 21, two guide taper sleeves 16 which are symmetrically arranged are sleeved on the fixing bolts 17, a sleeve which is sleeved on the fixing bolts 17 is arranged between the two guide taper sleeves 16, and the two guide taper sleeves 16 are separated from each other by the sleeve.
One side that riser 15 is close to riser 18 before the upper bracket behind the upper bracket is equipped with the upper bracket limiting plate 13 of being connected with riser 15 behind the upper bracket perpendicularly, is equipped with the clearance between this upper bracket limiting plate 13 and the riser 18 before the upper bracket to make the driver's cabin mounting hole 19 on the upper bracket roof 12 can penetrate the bolt from making progress down and connect the driver's cabin. The upper bracket limiting plate 13 is located at the top of the hydraulic lock 21, and an upper bracket damping pad 14 is arranged between the upper bracket limiting plate 13 and the hydraulic lock 21. The gap between the upper support limiting plate 13 and the upper support front vertical plate 18 is convenient for bolts to penetrate into the cab mounting hole 19 on the upper support top plate 12, and the upper support limiting plate 13 also has an elastic buffering effect, so that the amplitude of a cab is reduced. The upper bracket vibration damping pad 14 is preferably, but not limited to, a rubber pad to prevent the upper bracket limiting plate 13 from being in hard contact with the hydraulic lock 21, thereby improving the damping performance.
The hydraulic lock 21 for fixing the rear suspension upper bracket 1 is arranged at the tops of two ends of an upper cross beam 22 of the cab rear suspension device, the fixing bolts 17 connected with the hydraulic lock 21 are arranged at the bottoms of the upper bracket front vertical plate 18 and the upper bracket rear vertical plate 15, and two guide taper sleeves 16 symmetrically arranged are sleeved on the fixing bolts 17. The hydraulic lock 21 fixes the rear suspension upper bracket 1 on the upper cross beam 22 by locking the fixing bolt 17, and before the rear suspension upper bracket 1 falls on the hydraulic lock 21, the two guide taper sleeves 16 provide guidance for the rear suspension upper bracket 1 so as to enable the rear suspension upper bracket 1 to fall on the hydraulic lock 21 in the middle. After the rear suspension upper bracket 1 falls to the hydraulic lock 21, the two guide taper sleeves 16 provide limit for the rear suspension upper bracket 1, and prevent the upper bracket rear vertical plate 15 and the upper bracket front vertical plate 18 from abutting against the hydraulic lock 21.
In some alternative embodiments: referring to fig. 1 to 4 and 7, in the present embodiment, a modular and lightweight cab rear suspension device is provided, a lower beam connection end 31 for fixing a lower beam 24 is further provided at a top of a rear suspension lower bracket 3 of the cab rear suspension device, a fixing hole for connecting the lower beam 24 is provided on the lower beam connection end 31, and the lower beam connection end 31 is fixedly connected with an end of the lower beam 24 through a bolt. The bottom of lower beam connecting end 31 and shock absorber connecting end 32 is equipped with horizontal strengthening rib 33, and the bottom of horizontal strengthening rib 33 is equipped with and is connected with frame connection section 39 and to many vertical strengthening rib 34 of the bottom direction extension of frame connection section 39, offers a plurality of frame mounting hole 35 with the frame connection on the frame connection section 39, and a plurality of fender mounting hole 36 with the fender connection.
The periphery of the frame connecting section 39 is provided with edge reinforcing ribs 37, the middle part of the frame connecting section 39 is provided with a middle reinforcing rib in an X shape, and the end part of the middle reinforcing rib is connected with the edge reinforcing ribs 37. Spare mounting holes 38 are also provided on the front and rear sides of the top of the frame connecting section 39. The lower beam connecting end 31, the shock absorber connecting end 32, the frame connecting section 39, the transverse reinforcing rib 33, the vertical reinforcing rib 34, the edge reinforcing rib 37 and the middle reinforcing rib are of an aluminum alloy material integrally cast structure. The rear suspension lower support 3 is not provided with other lightening holes except necessary mounting holes, the rear suspension lower support 3 is manufactured by aluminum alloy liquid forging, and the lightweight of the rear suspension lower support 3 is realized to the greatest extent on the basis of meeting the structural strength and rigidity.
In some alternative embodiments: referring to fig. 1, 2, 7 and 8, the embodiment of the present application provides a modular and lightweight cab rear suspension device, a lower cross beam 24 of the cab rear suspension device includes two layers of inverted "V" -shaped aluminum alloy stamped plates in front and at the back, and two ends of the two layers of aluminum alloy stamped plates are respectively and fixedly connected with lower cross beam connecting ends 31 of two rear suspension lower brackets 3 through bolts. The lower cross member 24 is provided at both sides of the top thereof with lateral dampers 29 for elastically supporting the upper cross member 22. Two ends of the bottom of the upper cross beam 22 are respectively provided with a first bracket 222 hinged with the top end of the vertical shock absorber 23, the bottom of the upper cross beam 22 is further provided with a second bracket 223 hinged with the top end of the transverse shock absorber 29, the number of the second brackets 223 is two, and the two second brackets 223 are positioned at the inner sides of the two first brackets 222 and are symmetrically arranged.
The upper beam 22 includes a rectangular frame extending in the Y-axis direction, and the first bracket 222 and the second bracket 223 are located at the bottom of the rectangular frame. Two top lightening holes 225 symmetrically arranged are formed in the top of the rectangular frame, two side lightening holes 224 symmetrically arranged are formed in the side of the rectangular frame, and the top lightening holes 225 and the side lightening holes 224 are rectangular holes. The top at both ends of the rectangular frame is provided with a hydraulic lock fixing groove 221 for installing the hydraulic lock 21, and the hydraulic lock 21 is located in the hydraulic lock fixing groove 221 and is fixedly connected with the rectangular frame through a bolt. The rectangular frame, the first bracket 222 and the second bracket 223 are of an aluminum alloy material integrally extruded structure.
In some alternative embodiments: referring to fig. 7, the embodiment of the present application provides a modular and lightweight cab rear suspension device, a height valve 26 for controlling the height of a vertical shock absorber 23 is arranged on a lower cross beam 24 of the cab rear suspension device, a link 27 connected with an upper cross beam 22 is arranged on the height valve 26, the link 27 moves up and down along with the upper cross beam 22 to trigger the height valve 26 to inflate and deflate, so as to adjust the height of the vertical shock absorber 23, and the height valve 26 is connected with the vertical shock absorber 23 through an air pipe 25.
In some alternative embodiments: referring to fig. 9, the present embodiment provides a modular and lightweight cab rear suspension device, in which a rear suspension upper bracket 1 is fixed to the top of a rear suspension assembly 2 of the cab rear suspension device, and an upper bracket suspension arm plate 11 of the rear suspension upper bracket 1 is located on the front side of an upper cross beam 22, that is, a cab mounting hole 19 of the rear suspension upper bracket 1 is located on the front side of the axis of a shock absorber connecting end 32 in the X-axis direction and is offset forward by 80 mm. The rear suspension lower bracket 3 is fixed to the bottom of the rear suspension assembly 2, and the frame connecting section 39 of the rear suspension lower bracket 3 is located on the rear side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset rearward by 50 mm.
Under the condition that the mounting point of the cab rear suspension device of the embodiment of the application is kept unchanged on the frame, the frame connecting section 39 of the rear suspension lower bracket 3 is positioned at the rear side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 50mm backwards, and the cab mounting hole 19 of the rear suspension upper bracket 1 is positioned at the front side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 80mm forwards. Overall, the mounting center plane of the rear suspension upper 1 is offset forward by 130mm with respect to the mounting center plane of the rear suspension lower 3, and the cab rear suspension of the present embodiment can be used as a standard cab rear suspension structure.
In some alternative embodiments: referring to fig. 10, the present embodiment provides a modular and lightweight cab rear suspension device, in which a rear suspension upper bracket 1 is fixed to the top of a rear suspension assembly 2 of the cab rear suspension device, and an upper bracket suspension board 11 of the rear suspension upper bracket 1 is located on the front side of an upper cross beam 22, that is, a cab mounting hole 19 of the rear suspension upper bracket 1 is located on the front side of the axis of a shock absorber connecting end 32 in the X-axis direction and is offset forward by 80 mm. The rear suspension lower bracket 3 is fixed to the bottom of the rear suspension assembly 2, and the frame connecting section 39 of the rear suspension lower bracket 3 is located on the front side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset forward by 50 mm.
Under the condition that the mounting point of the cab rear suspension device of the embodiment of the application is kept unchanged on the frame, the frame connecting section 39 of the rear suspension lower bracket 3 is positioned on the front side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset forwards by 50mm, and the cab mounting hole 19 of the rear suspension upper bracket 1 is positioned on the front side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset forwards by 80 mm. Overall, the mounting center plane of the rear suspension upper bracket 1 is offset forward by 30mm with respect to the mounting center plane of the rear suspension lower bracket 3, and the cab rear suspension device of the present embodiment can be used as the rear suspension structure of the first extension cab. In the case where the mounting point of the cab rear suspension device on the vehicle frame is kept unchanged, the mounting center plane of the rear suspension upper bracket 1 of the present embodiment deviates by 100mm from the mounting center plane of the rear suspension upper bracket 1 of the previous embodiment, that is, the first extension cab of the present embodiment is increased in length by 100mm compared with the standard cab.
In some alternative embodiments: referring to fig. 11, the present embodiment provides a modular and lightweight cab rear suspension device, in which a rear suspension upper bracket 1 is fixed to the top of a rear suspension assembly 2 of the cab rear suspension device, and an upper bracket suspension board 11 of the rear suspension upper bracket 1 is located on the rear side of an upper cross beam 22, that is, a cab mounting hole 19 of the rear suspension upper bracket 1 is located on the rear side of the axis of a shock absorber connecting end 32 in the X-axis direction and is offset rearward by 80 mm. The rear suspension lower bracket 3 is fixed to the bottom of the rear suspension assembly 2, and the frame connecting section 39 of the rear suspension lower bracket 3 is located on the rear side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset rearward by 50 mm.
Under the condition that the mounting point of the cab rear suspension device of the embodiment of the application on the frame is kept unchanged, the frame connecting section 39 of the rear suspension lower bracket 3 is positioned at the rear side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 50mm backwards, and the cab mounting hole 19 of the rear suspension upper bracket 1 is positioned at the rear side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 80mm backwards. Overall, the mounting center plane of the rear suspension upper bracket 1 is offset rearward by 30mm with respect to the mounting center plane of the rear suspension lower bracket 3, and the cab rear suspension of the present embodiment can be used as the rear suspension structure of the second extension cab. Under the condition that the mounting point of the cab rear suspension device on the frame is kept unchanged, the mounting center plane of the rear suspension upper bracket 1 of the embodiment deviates 60mm compared with the mounting center plane of the rear suspension upper bracket 1 of the previous embodiment, namely the second lengthened cab of the embodiment is increased by 60mm in length compared with the first lengthened cab, and the second lengthened cab of the embodiment is increased by 160mm in length compared with the standard cab.
In some alternative embodiments: referring to fig. 12, the present embodiment provides a modular and lightweight cab rear suspension device, in which a rear suspension upper bracket 1 is fixed to the top of a rear suspension assembly 2 of the cab rear suspension device, and an upper bracket suspension board 11 of the rear suspension upper bracket 1 is located on the rear side of an upper cross beam 22, that is, a cab mounting hole 19 of the rear suspension upper bracket 1 is located on the rear side of the axis of a shock absorber connecting end 32 in the X-axis direction and is offset rearward by 80 mm. The rear suspension lower bracket 3 is fixed to the bottom of the rear suspension assembly 2, and the frame connecting section 39 of the rear suspension lower bracket 3 is located on the front side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset forward by 50 mm.
Under the condition that the mounting point of the cab rear suspension device of the embodiment of the application is kept unchanged on the frame, the frame connecting section 39 of the rear suspension lower bracket 3 is positioned on the front side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 50mm forwards, and the cab mounting hole 19 of the rear suspension upper bracket 1 is positioned on the rear side of the axis of the shock absorber connecting end 32 along the X-axis direction and is offset by 80mm backwards. Overall, the mounting center plane of the rear suspension upper bracket 1 is offset rearward by 130mm with respect to the mounting center plane of the rear suspension lower bracket 3, and the cab rear suspension of the present embodiment can be used as the rear suspension structure of the third-extension cab. Under the condition that the mounting point of the cab rear suspension device on the frame is unchanged, the mounting center plane of the rear suspension upper bracket 1 of the embodiment deviates 100mm compared with the mounting center plane of the rear suspension upper bracket 1 of the previous embodiment, namely the length of the third lengthened cab and the second lengthened cab of the embodiment is increased by 100mm, and the length of the third lengthened cab of the embodiment is increased by 260mm compared with the standard cab.
In some alternative embodiments: referring to fig. 13, the present embodiment provides a modular and lightweight cab rear suspension device, in which a rear suspension upper bracket 1 is fixed to the top of a rear suspension assembly 2 of the cab rear suspension device, and an upper bracket suspension board 11 of the rear suspension upper bracket 1 is located on the front side of an upper cross beam 22, that is, a cab mounting hole 19 of the rear suspension upper bracket 1 is located on the front side of the axis of a shock absorber connecting end 32 in the X-axis direction and is offset rearward by 80 mm. Two rear suspension lower brackets 3 are fixed to the bottom of the rear suspension assembly 2, the frame connecting section 39 of the left rear suspension lower bracket 3 is located on the rear side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset by 50mm rearward, and the frame connecting section 39 of the right rear suspension lower bracket 3 is located on the front side of the axis of the shock absorber connecting end 32 in the X-axis direction and is offset by 50mm forward. The embodiment is mainly used for avoiding the installation mode of dislocation of the lower rear suspension lower support 3 when the rear suspension lower support 3 interferes with other functional devices on the frame.
Principle of operation
The embodiment of the application provides a modularized and lightweight cab rear suspension device, and as the cab rear suspension device is provided with the rear suspension assembly 2, the rear suspension assembly 2 comprises an upper cross beam 22, a lower cross beam 24 positioned below the upper cross beam 22, and vertical shock absorbers 23 positioned at two ends of the lower cross beam 24 and elastically supporting the upper cross beam 22, and the top ends of the vertical shock absorbers 23 are connected with the upper cross beam 22; the rear suspension lower support 3 is provided with two rear suspension lower supports 3 which are respectively fixed at two ends of the lower cross beam 24, the top of each rear suspension lower support 3 is provided with a shock absorber connecting end 32 for fixing the vertical shock absorber 23, the bottom of each rear suspension lower support 3 is a frame connecting section 39, and the frame connecting section 39 is offset towards the axial direction far away from the shock absorber connecting end 32 along the X axis.
Therefore, the cab rear suspension of the present application has rear suspension lower brackets 3 respectively fixedly provided at both ends of the lower cross member 24, the top of the rear suspension lower bracket 3 is provided with a shock absorber connecting end 32 for fixing the vertical shock absorber 23, and the bottom of the rear suspension lower bracket 3 is a frame connecting section 39, and the frame connecting section 39 is offset in the direction of the axis away from the shock absorber connecting end 32 along the X-axis. Under the condition that the mounting point of the cab rear suspension device on the frame is unchanged, when the frame connecting section 39 is positioned at the rear side of the axis of the shock absorber connecting end 32, the cab rear suspension device is adapted to a standard version cab; when the frame connecting section 39 is located on the front side of the axis of the shock absorber connecting end 32, the cab rear suspension is adapted to the elongated cab. The cab rear suspension device can be adapted to cabs with different lengths under the condition that the mounting point on the frame is unchanged, and the problem of position interference of a rear suspension lower bracket and other functional devices of the frame is solved.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A modular and lightweight cab rear suspension, comprising:
the rear suspension assembly (2) comprises an upper cross beam (22), a lower cross beam (24) positioned below the upper cross beam (22) and vertical shock absorbers (23) positioned at two ends of the lower cross beam (24) and elastically supporting the upper cross beam (22), wherein the top ends of the vertical shock absorbers (23) are connected with the upper cross beam (22);
the rear suspension lower support (3) is provided with two parts which are respectively fixed at two ends of the lower cross beam (24), the top of the rear suspension lower support (3) is provided with a shock absorber connecting end (32) for fixing the vertical shock absorber (23), the bottom of the rear suspension lower support (3) is a frame connecting section (39), and the frame connecting section (39) is offset towards the axis direction far away from the shock absorber connecting end (32) along the X axis.
2. A modular and lightweight cab rear suspension as set forth in claim 1, wherein:
the top parts of the two ends of the upper cross beam (22) are provided with rear suspension upper brackets (1) for fixing a cab, and each rear suspension upper bracket (1) comprises an upper bracket front vertical plate (18) and an upper bracket rear vertical plate (15) which are parallel to each other and arranged at intervals;
the upper support top plate (12) is positioned at the tops of the upper support front vertical plate (18) and the upper support rear vertical plate (15) and connects the upper support front vertical plate (18) and the upper support rear vertical plate (15) into a whole, and an upper support cantilever plate (11) is arranged at one end, close to the upper support front vertical plate (18), of the upper support top plate (12);
cab mounting holes (19) are formed in the upper support top plate (12) and the upper support cantilever plate (11), and the cab mounting holes (19) are offset towards the axis direction far away from the shock absorber connecting end (32) along the X axis.
3. A modular and lightweight cab rear suspension as set forth in claim 2, wherein:
the top parts of the two ends of the upper cross beam (22) are provided with hydraulic locks (21) for fixing the rear suspension upper bracket (1), the bottoms of the upper bracket front vertical plate (18) and the upper bracket rear vertical plate (15) are provided with fixing bolts (17) connected with the hydraulic locks (21), and the fixing bolts (17) are sleeved with guide taper sleeves (16) which are symmetrically arranged;
one side that riser (15) were close to riser (18) before the upper bracket behind the upper bracket is equipped with upper bracket limiting plate (13) of being connected with riser (15) behind the upper bracket perpendicularly, upper bracket limiting plate (13) are located the top of hydraulic pressure lock (21), be equipped with upper bracket damping pad (14) between upper bracket limiting plate (13) and hydraulic pressure lock (21).
4. A modular and lightweight cab rear suspension as set forth in claim 2, wherein:
the rear suspension upper bracket (1) can change the direction on the upper cross beam (22) back and forth, so that the cab mounting hole (19) is positioned on the front side or the rear side of the axis of the shock absorber connecting end (32) along the X-axis direction, and the frame connecting section (39) is positioned on the front side or the rear side of the axis of the shock absorber connecting end (32) along the X-axis direction.
5. A modular and lightweight cab rear suspension as set forth in claim 1, wherein:
the top of the rear suspension lower support (3) is also provided with a lower beam connecting end (31) for fixing the lower beam (24), the lower beam connecting end (31) is fixedly connected with the end part of the lower beam (24) through a bolt, and the bottoms of the lower beam connecting end (31) and the shock absorber connecting end (32) are provided with transverse reinforcing ribs (33);
the bottom of horizontal strengthening rib (33) is equipped with many vertical strengthening rib (34) that are connected and extend to the bottom direction of frame connection section (39) with frame connection section (39), frame connection section (39) are last to have seted up a plurality of frame mounting hole (35) of being connected with the frame to a plurality of fender mounting hole (36) of being connected with the fender.
6. A modular and lightweight cab rear suspension as set forth in claim 5, wherein:
the periphery of the frame connecting section (39) is provided with edge reinforcing ribs (37), the middle part of the frame connecting section (39) is provided with an X-shaped middle reinforcing rib, and the end part of the middle reinforcing rib is connected with the edge reinforcing ribs (37);
the lower cross beam connecting end (31), the shock absorber connecting end (32), the frame connecting section (39), the transverse reinforcing ribs (33), the vertical reinforcing ribs (34), the edge reinforcing ribs (37) and the middle reinforcing ribs are of an aluminum alloy material integrated casting forming structure.
7. A modular and lightweight cab rear suspension as set forth in claim 5, wherein:
the lower cross beam (24) comprises a front layer of inverted V-shaped aluminum alloy stamping plate and a rear layer of inverted V-shaped aluminum alloy stamping plate, two ends of the two layers of aluminum alloy stamping plates are fixedly connected with lower cross beam connecting ends (31) of the two rear suspension lower brackets (3) through bolts respectively, and two sides of the top of the lower cross beam (24) are provided with transverse shock absorbers (29) which elastically support the upper cross beam (22) respectively.
8. A modular and lightweight cab rear suspension as set forth in claim 7, wherein:
two ends of the bottom of the upper cross beam (22) are respectively provided with a first support (222) hinged with the top end of the vertical shock absorber (23), the bottom of the upper cross beam (22) is also provided with a second support (223) hinged with the top end of the transverse shock absorber (29), the number of the second supports (223) is two, and the two second supports (223) are located on the inner sides of the two first supports (222) and are symmetrically arranged.
9. A modular and lightweight cab rear suspension as set forth in claim 8, wherein:
the upper cross beam (22) comprises a rectangular frame extending along the Y-axis direction, the first support (222) and the second support (223) are located at the bottom of the rectangular frame, a top lightening hole (225) is formed in the top of the rectangular frame, a side lightening hole (224) is formed in the side of the rectangular frame, hydraulic lock fixing grooves (221) are formed in the tops of two ends of the rectangular frame, and the rectangular frame, the first support (222) and the second support (223) are of aluminum alloy material integrally extruded forming structures.
10. A modular and lightweight cab rear suspension as set forth in claim 1, wherein:
the height control device is characterized in that a height valve (26) for controlling the height of the vertical shock absorber (23) is arranged on the lower cross beam (24), a connecting rod (27) connected with the upper cross beam (22) is arranged on the height valve (26), the connecting rod (27) moves up and down along with the upper cross beam (22) to trigger the height valve (26) to adjust the height of the vertical shock absorber (23), and the height valve (26) is connected with the vertical shock absorber (23) through an air pipe (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423155.2A CN113942588B (en) | 2021-11-26 | 2021-11-26 | Modularized and lightweight cab rear suspension device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111423155.2A CN113942588B (en) | 2021-11-26 | 2021-11-26 | Modularized and lightweight cab rear suspension device |
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| CN113942588A true CN113942588A (en) | 2022-01-18 |
| CN113942588B CN113942588B (en) | 2023-03-03 |
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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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| CN202272081U (en) * | 2011-09-21 | 2012-06-13 | 东风汽车有限公司 | Damping type cab hydraulic lock |
| US20150344083A1 (en) * | 2014-06-02 | 2015-12-03 | International Truck Intellectual Property Company, Llc | Cab suspension |
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|---|---|
| CN113942588B (en) | 2023-03-03 |
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