CN212604348U - Rear balance suspension assembly of heavy commercial vehicle - Google Patents
Rear balance suspension assembly of heavy commercial vehicle Download PDFInfo
- Publication number
- CN212604348U CN212604348U CN202021275991.1U CN202021275991U CN212604348U CN 212604348 U CN212604348 U CN 212604348U CN 202021275991 U CN202021275991 U CN 202021275991U CN 212604348 U CN212604348 U CN 212604348U
- Authority
- CN
- China
- Prior art keywords
- support
- axle
- frame
- plate spring
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Vehicle Body Suspensions (AREA)
Abstract
The utility model discloses a rear balance suspension assembly of a heavy commercial vehicle, which comprises a bearing mechanism, a guide mechanism, a limiting device and a damping device; the bearing mechanism is fixed with the side surface of the frame and the lower wing surface of the frame and bears the vertical load of the vehicle; the guide mechanism is connected with the bearing mechanism and the side surface of the frame, transmits the driving force, the braking force and the lateral force action of a tire in the running process of a vehicle, and guides the vertical jumping of an axle and the rotary swinging of a plate spring; the limiting device comprises an upper limiting part and a lower limiting part, wherein the upper limiting part prevents the suspension from being broken down in the process of upward jumping motion of the vehicle axle and plays a role in limiting the upward motion of the vehicle axle; the lower limit prevents the axle from being separated from the plate spring support in the process of jumping downwards, and plays a role in limiting the downward movement of the axle; the vibration damping device is connected with the axle and the frame bracket through the bracket, and damps the vibration of the rear suspension. The utility model has the advantages of simple structure and high reliability.
Description
Technical Field
The utility model relates to a rear balance suspension assembly, especially a rear balance suspension assembly suitable for heavy machineshop car belongs to automobile parts technical field.
Background
The rear balance suspension is an important bearing part of a chassis system of the heavy commercial vehicle, and the structure of the rear balance suspension has a vital influence on the bearing performance and the reliability of the heavy commercial vehicle. The rear balance suspension is divided into an integral balance suspension and a disconnected balance suspension according to the structural form, and is divided into a metal bearing balance suspension and a rubber bearing balance suspension according to the used bearing. The integral type balance suspension has a complex structure and high weight; the disconnected type balance suspension is relatively simple in structure and light in weight; the metal bearing balanced suspension has a complex structure, needs regular maintenance and is suitable for engineering vehicles; the rubber bearing balance suspension is maintenance-free and suitable for road vehicles. At present, the balance suspension is a disconnected metal bearing balance suspension, and is matched with a plurality of steel plate springs, a rubber support, a V-shaped thrust rod, a lower thrust rod, a guide plate and a limiting block, so that the system has high failure rate of the rubber support and the V-shaped thrust rod.
Disclosure of Invention
The utility model aims to solve the technical problem that to the defect that prior art exists, provide a balanced suspension assembly behind heavy commercial car simple structure, reliability are high.
In order to solve the technical problem, the utility model provides a rear balance suspension assembly of a heavy commercial vehicle, which comprises a bearing mechanism, a guide mechanism, a limiting device and a damping device;
the bearing mechanism is fixed with the side surface of the frame and the lower wing surface of the frame and bears the vertical load of the vehicle;
the guide mechanism is connected with the bearing mechanism and the side surface of the frame, transmits the driving force, the braking force and the lateral force action of a tire in the running process of a vehicle, and guides the vertical jumping of an axle and the rotary swinging of a plate spring;
the limiting device comprises an upper limiting part and a lower limiting part, wherein the upper limiting part prevents the suspension from being broken down in the process of upward jumping motion of the vehicle axle and plays a role in limiting the upward motion of the vehicle axle; the lower limit prevents the axle from being separated from the plate spring support in the process of jumping downwards, and plays a role in limiting the downward movement of the axle;
the vibration damper is connected with the axle and the frame bracket through the bracket, and the relative motion of the axle and the frame bracket drives the vibration damper to move up and down, so that the vibration of the rear suspension is attenuated.
The bearing mechanism comprises a plate spring pressing plate, a U-shaped bolt, a rear plate spring assembly, a balanced suspension assembly and a U-shaped bolt nut, the rear plate spring assembly is fixed on the balanced suspension assembly through the plate spring pressing plate and an inverted splayed inclined U-shaped bolt, and the rear plate spring assembly can rotate around a balanced shaft; the balance suspension assembly comprises a balance shaft bracket, a balance shaft shell, a metal bearing and an end cover, wherein the balance shaft bracket is fixed with the side surface of the frame and the lower airfoil surface of the frame through a side bolt hole and a bottom bolt, and the balance shaft shell can rotate around the metal bearing.
The guide mechanism comprises a plate spring support, a guide plate, a V-shaped thrust rod, a lower shock absorber support, a lower thrust rod, a balance shaft support connecting plate and a rear thrust rod support, the plate spring support is positioned on the upper side of the axle housing, the rear thrust rod support and the lower shock absorber support are positioned on the lower side of the axle housing, and the plate spring support, the rear thrust rod support and the lower shock absorber support are fixed with the axle through bolts; the guide plate is positioned between the frame and the rear steel plate spring assembly and is fixed with the side surface of the frame through a bolt; the V-shaped thrust rod is positioned between the axle and the cast cross beam and is respectively connected with the upper side of the axle and the cast cross beam through bolts; the lower thrust rod is positioned between the axle and the balanced suspension assembly, and two sides of the lower thrust rod are respectively fixed with the balanced suspension assembly, the rear bracket of the thrust rod and the lower bracket of the shock absorber through bolts; the lower thrust rod and the V-shaped thrust rod form a parallelogram four-bar linkage mechanism and guide bridge up and down jumping on the middle surface of the frame; the lower push rod connecting rod and the frame form a 15-degree angle, and the left lower push rod and the right lower push rod form a V-shaped push rod structure; the balance shaft bracket connecting plate is fixedly connected with the lower ends of the balance shaft brackets on the left side and the right side of the frame through bolts, and the balance shaft brackets, the balance shaft bracket connecting plate and the frame casting cross beam form a frame structure together.
The plate spring support comprises an arc-shaped sliding plate and a barb, and the barb plays a role in lower limiting.
The limiting device comprises a limiting support, a limiting block and a plate spring support barb, and the limiting support and the limiting block form the upper limiting device.
The vibration damping device comprises a lower vibration damper support, an upper vibration damper support and a vibration damper, the vibration damper is connected with the axle through the lower vibration damper support, the upper vibration damper support is connected with the frame support, and the relative motion of the axle and the frame support drives the vibration damper to move up and down to damp the vibration of the rear suspension.
Has the advantages that: the utility model adopts the V-shaped arrangement form of the lower thrust rod, shares the lateral force in the running motion process of the vehicle with the upper V-shaped thrust rod, relieves the stress condition of the V-shaped thrust rod and prolongs the service life of the V-shaped thrust rod; the balance shaft bracket connecting plate is adopted, so that the balance shaft bracket, the balance shaft bracket connecting plate and the frame casting cross beam form a frame structure together, and the stress condition of the balance shaft bracket is improved; the shock absorber is adopted to replace an original rubber support, and the rubber support of a fragile part is cancelled under the condition that the smoothness of a vehicle is not influenced, so that the reliability of a rear suspension system is improved; the utility model has the advantages of simple structure and high reliability.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the bearing mechanism of the present invention;
fig. 3 is an exploded view of the guide mechanism and the vibration damping device of the present invention;
fig. 4 is a schematic structural diagram of the balance suspension of the present invention;
FIG. 5 is a structural diagram of the limiting device of the present invention;
fig. 6 is a structural view of the plate spring support of the present invention.
In the figure: the device comprises a bearing mechanism 1, a guide mechanism 2, a limiting device 3, a damping device 4, a plate spring pressing plate 5, a U-shaped bolt 6, a rear plate spring assembly 7, a balanced suspension assembly 8, a U-shaped bolt nut 9, a plate spring support 10, a guide plate 11, a thrust rod 12V, a lower support of a shock absorber 13, an upper support of the shock absorber 14, a shock absorber 15, a lower thrust rod 16, a connecting plate of a balanced shaft support 17, a rear support of the thrust rod 18, a balanced shaft support 19, a balanced shaft shell 20, a metal bearing 21, an end cover 22, a limiting support 23, a limiting block 24, a sliding plate 25 and an barb.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention.
The utility model provides a rear balance suspension assembly of a heavy commercial vehicle, which comprises a bearing mechanism 1, a guide mechanism 2, a limiting device 3 and a damping device 4;
the bearing mechanism 1 is fixed with the side surface of the frame and the lower wing surface of the frame and bears the vertical load of the vehicle;
the guide mechanism 2 is connected with the bearing mechanism 1 and the side surface of the frame, and is used for transmitting the driving force, the braking force and the lateral force action of a vehicle from a tire in the running process, and guiding the vertical jumping of an axle and the rotary swinging of a plate spring;
the limiting device 3 comprises an upper limiting part and a lower limiting part, wherein the upper limiting part prevents the suspension from being broken down in the process of upward jumping motion of the vehicle axle and plays a role in limiting the upward motion of the vehicle axle; the lower limit prevents the axle from being separated from the plate spring support in the process of jumping downwards, and plays a role in limiting the downward movement of the axle;
the vibration damper 4 is connected with the axle and the frame bracket through a bracket, and the relative motion of the axle and the frame bracket drives the vibration damper 15 to move up and down, so that the vibration of the rear suspension is attenuated.
Fig. 2 is a schematic structural diagram of the bearing mechanism of the present invention.
Fig. 4 is a schematic structural diagram of the balanced suspension of the present invention.
The bearing mechanism 1 comprises a plate spring pressing plate 5, a U-shaped bolt 6, a rear plate spring assembly 7, a balanced suspension assembly 8 and a U-shaped bolt nut 9, the rear plate spring assembly 7 is fixed on the balanced suspension assembly 8 through the plate spring pressing plate 5 and an inverted splayed inclined U-shaped bolt 6, the rear plate spring assembly 7 can rotate around a balanced shaft, and the vertical loads on the wheels of the middle and rear axles are guaranteed to be equal; the balance suspension assembly 8 comprises a balance shaft bracket 19, a balance shaft shell 20 and a metal bearing and end cover 21, wherein the balance shaft bracket 19 is fixed with the side surface of the frame and the lower wing surface of the frame through a side bolt hole and a bottom bolt, and the balance shaft shell 20 can rotate around the metal bearing.
Fig. 3 is an exploded view of the guiding mechanism and the vibration damping device according to the present invention.
The guide mechanism 2 comprises a plate spring support 10, a guide plate 11, a V-shaped thrust rod 12, a lower support 13 of the shock absorber, a lower thrust rod 16, a balance shaft support connecting plate 17 and a thrust rod rear support 18. The plate spring support 10 is positioned on the upper side of the axle housing, the thrust rod rear support 18 and the shock absorber lower support 13 are positioned on the lower side of the axle housing, and the plate spring support 10, the thrust rod rear support 18 and the shock absorber lower support 13 are fixed with the axle through bolts; the guide plate 11 is positioned between the frame and the rear steel plate spring assembly 7 and is fixed with the side surface of the frame through a bolt; the V-shaped thrust rod 12 is positioned between the axle and the cast cross beam and is respectively connected with the upper side of the axle and the cast cross beam through bolts; the lower thrust rod 16 is positioned between the axle and the balanced suspension assembly 8, and two sides of the lower thrust rod are respectively fixed with the balanced suspension assembly 8, the thrust rod rear bracket 18 and the shock absorber lower bracket 13 through bolts.
Fig. 6 is a structural view of the plate spring support of the present invention.
The plate spring support 10 comprises an arc-shaped sliding plate 24 and a barb 25, and when a vehicle runs on an uneven road and a tire jumps up and down, a plate spring moves around the sliding plate 24 of the plate spring support 10 to guide the plate spring to move; meanwhile, the barb 25 of the plate spring support 10 can prevent the axle from being separated from the plate spring support in the downward jumping process, and plays a role in limiting the downward movement of the axle. The function of the guide plate 11 is: in the process of up-and-down jumping of the axle, the guide plate 11 guides the plate spring to only rotate around the metal bearing without movement in other directions; the lower thrust rod 16 and the V-shaped thrust rod 12 form a parallelogram four-bar linkage mechanism on the middle surface of the frame and guide the vertical jumping of the bridge; the connecting rod of the lower thrust rod 16 and the frame form a 15-degree angle, the left lower thrust rod and the right lower thrust rod form a V-shaped thrust rod structure, the structure and the upper V-shaped thrust rod 12 share the lateral force in the running motion process of the vehicle, the stress condition of the V-shaped thrust rod 12 is relieved, and the service life of the V-shaped thrust rod 12 is prolonged; the balance shaft support connecting plate 17 is fixedly connected with the lower ends of the balance shaft supports 19 on the left side and the right side of the frame through bolts, and the balance shaft supports 19, the balance shaft support connecting plate 17 and the frame casting cross beam form a frame structure, so that the stress condition of the balance shaft supports is effectively improved.
Fig. 5 shows a structure diagram of the limiting device of the present invention.
The limiting device 3 comprises a limiting support 22, a limiting block 23 and a barb of the plate spring support 10, the limiting support 22 and the limiting block 23 form an upper limiting device, the suspension is prevented from being broken down in the upward jumping motion process of the vehicle axle, and an upper limiting effect is achieved on the upward motion of the vehicle axle.
The shock absorption device 4 comprises a shock absorber lower support 13, a shock absorber upper support 14 and a shock absorber 15, the shock absorber 15 is connected with the axle through the shock absorber lower support 13 and connected with the frame support through the shock absorber upper support 14, the shock absorber 15 is driven by the relative motion of the axle and the frame support to move up and down, the vibration of the rear suspension is attenuated, the comfort of the whole vehicle is improved, and the service life of a suspension system is prolonged.
The utility model discloses balanced suspension assembly theory of operation behind heavy commercial car:
(1) when the vehicle runs on an uneven road surface, the rear steel plate spring assembly of the bearing mechanism is similar to a seesaw, and the vertical loads on the wheels of the middle and rear axles are ensured to be equal. The guide mechanism ensures that the middle rear axle runs along a track determined by the upper and lower thrust rods and simultaneously transmits the braking force and the driving force of the vehicle; the vibration damping device damps impact load from the road surface, providing vehicle ride comfort and service life of the rear suspension system.
(2) The lower thrust rod is optimized to be a 15-degree inclined rod by an original straight rod, the left lower thrust rod and the right lower thrust rod form a structure similar to a V-shaped thrust rod, the structure shares lateral force in the running motion process of a vehicle with the upper V-shaped thrust rod, the stress condition of the V-shaped thrust rod is relieved, and the service life of the V-shaped thrust rod is prolonged.
(3) The shock absorber device is optimized to be a shock absorber by an original rubber support, the original balance suspension absorbs energy by means of rubber deformation of the rubber support, vibration energy generated by relative movement of the vehicle frame and the vehicle axle is attenuated, and the rubber support is prone to early damage due to the fact that the rubber support frequently bears the action of pulling pressure. The novel structure optimizes the rubber support into the shock absorber, attenuates the energy of the suspension system by the action of the shock absorber, and reduces the faults of the rear suspension system.
The utility model adopts the V-shaped arrangement form of the lower thrust rod, shares the lateral force in the running motion process of the vehicle with the upper V-shaped thrust rod, relieves the stress condition of the V-shaped thrust rod and prolongs the service life of the V-shaped thrust rod; the balance shaft bracket connecting plate is adopted, so that the balance shaft bracket, the balance shaft bracket connecting plate and the frame casting cross beam form a frame structure together, and the stress condition of the balance shaft bracket is improved; the shock absorber is adopted to replace an original rubber support, and the rubber support of a fragile part is cancelled under the condition that the smoothness of a vehicle is not influenced, so that the reliability of a rear suspension system is improved.
The above embodiments of the present invention are merely examples, not the only ones, and all changes within the scope of the present invention or the same range of the present invention are all surrounded by the present invention.
Claims (6)
1. The utility model provides a balanced suspension assembly behind heavy commercial car which characterized in that: comprises a bearing mechanism (1), a guide mechanism (2), a limiting device (3) and a vibration damping device (4);
the bearing mechanism (1) is fixed with the side surface of the frame and the lower wing surface of the frame and bears the vertical load of the vehicle;
the guide mechanism (2) is connected with the bearing mechanism (1) and the side surface of the frame, transmits the driving force, the braking force and the lateral force action of a vehicle from a tire in the running process, and guides the vertical jumping of an axle and the rotary swinging of a plate spring;
the limiting device (3) comprises an upper limiting part and a lower limiting part, the upper limiting part prevents the suspension from being broken down in the process of upward jumping movement of the vehicle axle, and the upper limiting part plays a role in limiting the upward movement of the vehicle axle; the lower limit prevents the axle from being separated from the plate spring support in the process of jumping downwards, and plays a role in limiting the downward movement of the axle;
the vibration damping device (4) is connected with the axle and the frame bracket through the bracket, and the relative motion of the axle and the frame bracket drives the vibration damper (15) to move up and down, so that the vibration of the rear suspension is damped.
2. The heavy-duty commercial vehicle rear counterbalanced suspension assembly as claimed in claim 1, wherein: the bearing mechanism (1) comprises a plate spring pressing plate (5), a U-shaped bolt (6), a rear plate spring assembly (7), a balanced suspension assembly (8) and a U-shaped bolt nut (9), the rear plate spring assembly (7) is fixed to the balanced suspension assembly (8) through the plate spring pressing plate (5) and the inverted splayed inclined U-shaped bolt (6), and the rear plate spring assembly (7) can rotate around a balanced shaft; the balance suspension assembly (8) comprises a balance shaft bracket (19), a balance shaft shell (20), a metal bearing and an end cover (21), wherein the balance shaft bracket (19) is fixed with the side surface of the frame and the lower airfoil surface of the frame through a side bolt hole and a bottom bolt, and the balance shaft shell (20) can rotate around the metal bearing.
3. The heavy-duty commercial vehicle rear counterbalanced suspension assembly as claimed in claim 1, wherein: the guide mechanism (2) comprises a plate spring support (10), a guide plate (11), a V-shaped thrust rod (12), a lower shock absorber support (13), a lower thrust rod (16), a balance shaft support connecting plate (17) and a rear thrust rod support (18), the plate spring support (10) is positioned on the upper side of the axle housing, the rear thrust rod support (18) and the lower shock absorber support (13) are positioned on the lower side of the axle housing, and the plate spring support (10), the rear thrust rod support (18) and the lower shock absorber support (13) are fixed with the axle through bolts; the guide plate (11) is positioned between the frame and the rear steel plate spring assembly (7) and is fixed with the side surface of the frame through a bolt; the V-shaped thrust rod (12) is positioned between the axle and the cast cross beam and is respectively connected with the upper side of the axle and the cast cross beam through bolts; the lower thrust rod (16) is positioned between the axle and the balanced suspension assembly (8), and two sides of the lower thrust rod are respectively fixed with the balanced suspension assembly (8), the thrust rod rear bracket (18) and the shock absorber lower bracket (13) through bolts; the lower thrust rod (16) and the V-shaped thrust rod (12) form a parallelogram four-bar linkage mechanism on the middle surface of the frame and guide the vertical jumping of the bridge; the connecting rod of the lower push rod (16) forms a 15-degree angle with the frame, and the left lower push rod and the right lower push rod form a V-shaped push rod structure; the balance shaft support connecting plate (17) is fixedly connected with the lower ends of the balance shaft supports (19) on the left side and the right side of the frame through bolts, and the balance shaft supports (19), the balance shaft support connecting plate (17) and the frame casting cross beam form a frame structure.
4. The heavy-duty commercial vehicle rear counterbalanced suspension assembly as claimed in claim 3, wherein: the plate spring support (10) comprises an arc-shaped sliding plate (24) and an inverted hook (25), and the inverted hook (25) plays a role in lower limiting.
5. The heavy-duty commercial vehicle rear counterbalanced suspension assembly as claimed in claim 1, wherein: the limiting device (3) comprises a limiting support (22), a limiting block (23) and a plate spring support (10) barb, and the limiting support (22) and the limiting block (23) form an upper limiting device.
6. The rear counterbalancing suspension assembly as claimed in any one of claims 1 to 5, wherein: the shock absorption device (4) comprises a shock absorber lower support (13), a shock absorber upper support (14) and a shock absorber (15), the shock absorber (15) is connected with an axle through the shock absorber lower support (13), the shock absorber upper support (14) is connected with a frame support, and the relative motion of the axle and the frame support drives the shock absorber (15) to move up and down to attenuate the vibration of the rear suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275991.1U CN212604348U (en) | 2020-07-03 | 2020-07-03 | Rear balance suspension assembly of heavy commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021275991.1U CN212604348U (en) | 2020-07-03 | 2020-07-03 | Rear balance suspension assembly of heavy commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212604348U true CN212604348U (en) | 2021-02-26 |
Family
ID=74757705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021275991.1U Active CN212604348U (en) | 2020-07-03 | 2020-07-03 | Rear balance suspension assembly of heavy commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212604348U (en) |
-
2020
- 2020-07-03 CN CN202021275991.1U patent/CN212604348U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205872217U (en) | Driver's cabin four properties bag floats suspension device entirely | |
| CN104554324B (en) | A kind of monoblock type framework and bogie | |
| CN103693117B (en) | Truck cab's rear suspension device | |
| CN107415616B (en) | Transverse composite material leaf spring suspension structure | |
| CN201086615Y (en) | Breaking type balancing suspension rack and heavy-duty truck with the same | |
| CN111959550A (en) | Framework and bogie thereof | |
| CN202623843U (en) | Double-rear axle air suspension for heavy duty car | |
| CN104029579B (en) | The soft fixed single piece composite material plate spring suspension structure in plate end | |
| CN103386869B (en) | For the suspension vibration-proof structure of engineering truck | |
| CN110667635A (en) | Built-in bogie frame of axle box | |
| CN103101542A (en) | Elastic joint structure suitable for cantilever-type flexible suspension of CRH (China railway high-speed) train traction motor | |
| CN203427567U (en) | Suspension damping structure used for engineering vehicle | |
| CN212604348U (en) | Rear balance suspension assembly of heavy commercial vehicle | |
| CN219564692U (en) | Vertical guide arm passenger train air suspension | |
| CN201931955U (en) | Compound type air suspension system taking variable-section plate springs as guide arms | |
| CN110861673A (en) | Lightweight high-speed magnetic levitation vehicle running gear device | |
| CN114394120B (en) | High dynamic performance railway wagon bogie | |
| CN102114759A (en) | Dual-rear axle linkage truck suspension | |
| CN201914036U (en) | Double-rear-axle linkage truck suspension | |
| CN214928773U (en) | Independent suspension system of trailer | |
| CN101380882A (en) | Four connection-rod hovering loading-bridge device ganged with driving axle | |
| CN112026467B (en) | Vehicle damping device | |
| CN205059767U (en) | Full floating commercial car driver's cabin suspension system | |
| CN114684280B (en) | Full floating cab rear suspension device of commercial vehicle | |
| CN201151403Y (en) | Novel axle box suspension shock-absorbing device for railway wagon bogie |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |