CN216467345U - Commercial vehicle chassis matched with eight-speed automatic transmission - Google Patents
Commercial vehicle chassis matched with eight-speed automatic transmission Download PDFInfo
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- CN216467345U CN216467345U CN202121425422.5U CN202121425422U CN216467345U CN 216467345 U CN216467345 U CN 216467345U CN 202121425422 U CN202121425422 U CN 202121425422U CN 216467345 U CN216467345 U CN 216467345U
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Abstract
The utility model discloses a commercial vehicle chassis matched with an eight-speed automatic transmission, which comprises an engine, a transmission, a vehicle frame, a national sixth aftertreatment, an air suspension, a front axle, a radiator, a flexible coupling, a transmission shaft and a rear axle, wherein the engine is in transmission connection with the transmission, the transmission is fixedly connected with the national sixth aftertreatment, the transmission is in transmission connection with the front axle, one side of the transmission is provided with the radiator, the radiator is connected with the transmission through an oil pipe, the bottom of the transmission is provided with an electronic control unit, the electronic control unit is in nested connection with the transmission, the transmission is in transmission connection with the rear axle through the transmission shaft, the engine, the transmission and the air suspension are fixedly connected with the vehicle frame, one side of the transmission shaft is provided with the flexible coupling, the transmission is connected to the transmission shaft through the flexible coupling, and the chassis is made of high-strength structural steel so as to provide a powerful support for a modified vehicle; the air suspension can greatly attenuate road vibration and prolong the service life of the chassis; the semi-axle sleeve structure of the rear axle can meet different refitting requirements.
Description
Technical Field
The utility model relates to the field of commercial vehicle chassis, in particular to a commercial vehicle chassis matched with an eight-speed automatic transmission.
Background
With the improvement of the requirements of users on the simplicity and the comfort of vehicle operation, the automatic transmission is popularized in all aspects in future by the Europe and especially in the market of refitted vehicles such as motor homes and the like. Compared with a manual gear vehicle type, the automatic gear has the advantages of advanced technology, good driving comfort, high safety and the like. In order to meet the market demands, I developed the first eight-speed automatic transmission model in the domestic light passenger industry.
Disclosure of Invention
The utility model aims to provide a commercial vehicle chassis matched with an eight-speed automatic transmission to solve the problems in the prior art.
A commercial vehicle chassis matched with an eight-speed automatic transmission comprises an engine, a transmission, a frame, a national post-treatment, an air suspension, a front axle, a radiator, a flexible coupling, a transmission shaft and a rear axle,
the engine is in transmission connection with the speed changer,
the transmission is fixedly connected with the national six post-processing,
the speed changer is in transmission connection with the front axle,
a radiator is arranged on one side of the speed changer and is connected with the speed changer through an oil pipe,
the gearbox oil cooling is realized through the independent radiator and the electronic fan in the radiator, the modification is convenient, the cooling system of the whole vehicle is not influenced,
the bottom of the transmission is provided with an electronic control unit, the electronic control unit is connected with the transmission in a nested mode and is coated by the plastic oil sump, the electronic control unit can be waterproof and dustproof, the integration level is high, and the whole vehicle is prevented from being additionally arranged.
The transmission is in transmission connection with the rear axle through a transmission shaft,
the engine, the speed changer and the air suspension are fixedly connected with the frame,
one side of the transmission shaft is provided with a flexible coupling,
the transmission is connected to a drive shaft by a flexible coupling,
the flexible coupling is used to absorb vibrations and optimize comfort.
As a further improvement of the technical proposal, the upper end of the frame is provided with an emergency unlocking device,
the emergency unlocking device comprises a drawn wire, the transmission comprises a rocker arm, and the emergency unlocking device is connected to the rocker arm through the drawn wire.
As a further improvement of the technical proposal, the air suspension comprises a guide spring, a height valve, an air bag, a control box and an instrument panel electric control unit,
one end of the guide spring is rigidly connected with the frame,
the other end is rigidly connected with the frame through an air bag,
one side of the air bag is provided with a height valve which is fixedly connected with the frame,
the altitude valve is electrically connected to a control box, the control box is electrically connected to an instrument panel electric control unit,
the air suspension has two variable rigidity air bags rigidly connected with the guide spring and the frame, and two height valves are respectively arranged on two sides, so that the rigidity of the air bags can be effectively adjusted in time, the height of the empty and full-load rear axle of the whole vehicle is unchanged, the appearance of the whole vehicle is improved,
the air suspension has the characteristics that the height of the whole vehicle is unchanged when the whole vehicle is empty and full and the whole vehicle is fully loaded, the appearance and riding comfort of the whole vehicle are improved, the air suspension is self-adaptive to the tonnage change of the whole vehicle, and the reasonable height and attitude angle of the whole vehicle can be further ensured by the height of the rear air bag.
The height difference limit values of the left air bag and the right air bag are used for ensuring the posture and the transverse stability of the whole vehicle,
compared with the traditional rear plate spring suspension, the air suspension greatly improves the riding comfort and the controllability of the whole vehicle, can greatly attenuate the road vibration, and prolongs the service life of the chassis.
As a further improvement of the technical proposal, the frame comprises a cross beam, a longitudinal beam and a reinforcing plate,
the cross beam is riveted with the longitudinal beam through a connecting plate,
the reinforcing plate comprises an upper wing, a web plate and a lower wing,
the upper wing and the lower wing are jointed and riveted with the longitudinal beam,
the lower wing extends to the middle section of the longitudinal beam,
the web plate is welded with the longitudinal beam through the spacer bush,
the longitudinal beam is a variable cross-section longitudinal beam, and measures such as high-strength structural steel, riveting of the cross beam and the reinforcing plate are adopted, so that high strength is achieved, light weight is guaranteed as far as possible, and strong support is provided for refitted vehicles.
As a further improvement of the above technical solution, the rear axle 10 includes a rear axle housing body, a flange plate and a pair of axle sleeves,
the flange is quadrilateral, one group of opposite sides are parallel straight sides, the other group of opposite sides are concentric circular arc sides,
the semi-axis sleeve is divided into 4 sections comprising an L1 section, an L2 section, an L3 section and an L4 section,
the segment L2 is a spinal canal,
the flange plate is sleeved with the L2 section,
the L4 section is spliced and welded with the rear axle housing body,
wherein the length of the L1 segment is 83.5mm, the inner diameter is 35mm, the outer diameter is 55mm,
the external diameter of the small-diameter end of the vertebral canal is 55mm, the internal diameter is 35mm,
the external diameter of the large-diameter end of the vertebral canal is 80mm, the internal diameter is 60mm,
the L4 segment was 130mm in length, 58mm in inside diameter and 78mm in outside diameter.
As a further improvement of the above-mentioned technical solution,
l3 segment length was 327mm, internal diameter was 60mm and external diameter was 80 mm.
As a further improvement of the above-mentioned technical solution,
the length of the L3 segment is 433mm, the inner diameter is 60mm, the outer diameter is 80mm,
when the length of the L3 segment is 327mm, a rear axle with a 1538mm track width can be matched,
when the length of the L3 segment is 433mm, a rear axle with a 1750mm track width can be matched,
the chassis matched with the 1538mm rear wheel track can meet the requirements of users such as trucks, buses, boxes and the like, the chassis matched with the 1750mm rear wheel track can meet the modification requirements of users such as motor homes and the like,
the matched rear axle has light dead weight, large load, bearing ratio up to 24.8, high transmission efficiency and low noise, and not only lightens unsprung mass but also ensures load demand. Efficiency ranges at various speeds at 100% engine maximum power: 95.6% -97.9%, and the total noise is less than 76 dB.
The utility model has the beneficial effects that:
1. the F1C series engine adopted by the utility model has strong environmental adaptability, CAN meet the power requirements of various applications and the torque response, the structure of the engine CAN obviously improve the fuel economy of the engine, the ECU of the whole vehicle CAN monitor the condition of the engine in real time through the CAN-BUS, the engine has excellent functional design in the fit clearance, the piston ring and the lubricating system, the maintenance period of the engine CAN be prolonged, and meanwhile, the exhaust emission CAN be effectively reduced through a breakthrough post-processing technology;
2. the chassis is provided with an 8AT transmission, a professional transmission ratio distribution, a high-precision core component and a precise self-adaptive gear shifting control strategy, so that the vehicle can always run in an optimal rotating speed range, and the good dynamic property and economy of the whole vehicle are ensured;
3. the chassis adopts high-strength structural steel, riveted cross beams, reinforcing plates and other structures, and adopts a high-strength frame with variable cross-section longitudinal beams, so that high strength is realized, light weight is guaranteed as much as possible, and strong support is provided for refitted vehicles;
4. compared with the traditional rear steel plate spring suspension, the air suspension provided by the chassis greatly improves the riding comfort and the controllability of the whole vehicle, can greatly attenuate road vibration and prolong the service life of the chassis;
5. the lightweight rear axle that the chassis was equipped with through the semi-axis sleeve pipe of changing the intubate formula, just can match different user repacking demands, and the rear axle dead weight is light, load is big simultaneously, has both alleviateed unsprung mass, has guaranteed the load demand again.
Drawings
FIG. 1 is a schematic view of the overall structure of a commercial vehicle chassis incorporating an eight-speed automatic transmission according to the present invention;
FIG. 2 is a schematic diagram of the connection between a transmission and an emergency unlocking device of a commercial vehicle chassis matched with an eight-speed automatic transmission according to the utility model;
FIG. 3 is a schematic view of an air suspension structure of a commercial vehicle chassis of the present invention matched with an eight-speed automatic transmission;
FIG. 4 is a schematic diagram of a stiffener structure of a commercial vehicle chassis of the present invention matching an eight-speed automatic transmission;
FIG. 5 is a schematic structural view of a rear axle of a commercial vehicle chassis of the present invention, which is adapted to an eight-speed automatic transmission;
FIG. 6 is a cross-sectional view of a half-axle sleeve of a commercial vehicle chassis incorporating an eight-speed automatic transmission of the present invention;
fig. 7 is a schematic structural view of a half-axle sleeve of a commercial vehicle chassis matched with an eight-speed automatic transmission.
In the figure: 1. the emergency unlocking device comprises an engine, 2, a transmission, 2.1, a rocker arm, 3, a frame, 3.1, a wire drawing, 3.2, a cross beam, 3.3, a longitudinal beam, 3.4, a reinforcing plate, 3.5, a connecting plate, 3.6, an upper wing, 3.7, a web plate, 3.8, a lower wing, 3.9, a spacer bush, 4, national and national post treatment, 5, an air suspension, 5.1, a guide spring, 5.2, a height valve, 5.3, an air bag, 5.4, a control box, 6, a front axle, 7, a radiator, 8, a flexible coupling, 9, a transmission shaft, 10, a rear axle, 11 and an emergency unlocking device.
Detailed Description
The technical scheme of the utility model is further explained in detail by combining the attached drawings:
example (b): as shown in figure 1, the chassis of the commercial vehicle matched with the eight-speed automatic transmission comprises an engine 1, a transmission 2, a frame 3, a national sixth after-treatment 4, an air suspension 5, a front axle 6, a radiator 7, a flexible coupling 8, a transmission shaft 9 and a rear axle 10,
the engine is selected from an F1C series engine, an F1 series engine is specially developed and designed for a commercial vehicle,
the F1 series engines can be preheated in cylinders, the cold start temperature is minus 30 ℃, the cooled electric control EGR, the timing chain transmission and the maintenance-free roller rocker arm type hydraulic tappet are adopted, the performance is excellent, and the power requirements and the torque response of various applications can be met even under the worst working conditions;
the four-valve double-overhead camshaft, the suspension oil pan, the lower cylinder structure, the VGT supercharger, a brand new third generation common rail system accurately control fuel injection and other advanced technologies and a turbocharging solution scheme, so that the fuel economy of the engine is remarkably improved;
the ECU of the engine is provided with a control and monitoring interface based on a CAN-BUS, so that advanced real-time diagnosis is realized.
The engine adopts excellent functional design in the aspects of fit clearance, piston rings, a lubricating system and the like, the oil change period is as long as 4 kilometers, and the maintenance period can be called as the best model in the same type of products;
through verification and a breakthrough post-treatment technology, the exhaust emission is effectively reduced, and the strictest emission regulation is met;
the transmission 2 is an 8AT automatic transmission,
the 8A gearbox comprises 8 forward gears (7 gears and 8 gears are overspeed gears) and 1 reverse gear, and 3 multi-plate clutches and 2 brakes realize different speed ratios by controlling different planetary gear trains;
the total speed ratio range is larger than 7, the 8-speed ratio difference is smaller, the gear shifting time is shorter, gear skipping and downshift are allowed, larger acceleration is provided for the vehicle, and the acceleration response is improved by 43% compared with 6 AT;
the most professional transmission ratio distribution, high-precision core components and accurate self-adaptive gear shifting control strategy enable the vehicle to always run in the optimal rotating speed range, the power matching of the engine is always in the optimal state, the energy-saving and environment-friendly performance is remarkable, and the fuel consumption of one hundred kilometers is reduced by 6AT and 3.9% compared with 6 AMT;
the engine 1 is in driving connection with the transmission 2,
the transmission 2 is fixedly connected with the six-country aftertreatment device 4,
the speed changer 2 is connected with a front axle 6 in a transmission way,
a radiator 7 is arranged on one side of the speed changer 2, the radiator 7 is connected with the speed changer 2 through an oil pipe,
the bottom of the speed changer 2 is provided with an electronic control unit which is connected with the speed changer 2 in a nested way,
the electronic control unit is electrically connected with the ECU of the whole vehicle,
the speed changer 2 is in transmission connection with a rear axle 10 through a transmission shaft 9,
the engine 1, the speed changer 2 and the air suspension 5 are fixedly connected with the frame 3,
one side of the transmission shaft 9 is provided with a flexible coupling 8,
the transmission shaft 9 and the flexible coupling 8 are fixed through a flange plate and bolts, the flange plate, the transmission shaft 9 and the flexible coupling 8 are positioned by rabbets,
the transmission 2 is connected to a drive shaft 9 by a flexible coupling 8.
The upper end of the frame 3 is provided with an emergency unlocking device 11,
as shown in fig. 2, the emergency unlocking device 11 includes a wire 3.1, the transmission 2 includes a rocker arm 2.1, the emergency unlocking device 11 is connected to the rocker arm 2.1 through the wire to realize mechanical unlocking of the P-gear, and the upper end of the emergency unlocking device 11 is fixed on the floor of the cab, so that the operation of a driver is facilitated.
As shown in fig. 3, the air suspension 5 comprises a guide spring 5.1, a height valve 5.2, an air bag 5.3, a control box 5.4 and an instrument panel electronic control unit,
one end of the guide spring 5.1 is rigidly connected with the frame 3,
the other end is rigidly connected with the frame 3 through an air bag 5.3,
one side of the air bag is provided with a height valve 5.2, the height valve 5.2 is fixedly connected with the frame 3,
the altitude valve 5.2 is electrically connected to the control box 5.4, the control box 5.4 is electrically connected to the instrument panel electronic control unit,
the instrument electric control unit is electrically connected with the whole vehicle ECU,
the designed height of the distance from the center of the wheel to the upper wing surface of the frame is 270mm, the height of the air bag 5.3 is 220mm, the vehicle is parked on the horizontal ground, after the vehicle is inflated to the calibrated air pressure, the height difference of the left air spring and the right air spring is less than or equal to 15mm,
the air suspension's meter control unit can perform any lifting, lowering and leveling operations prior to vehicle loading and unloading.
The frame 3 comprises a cross beam 3.2, a longitudinal beam 3.3 and a reinforcing plate 3.4,
the cross beam 3.2 is riveted with the longitudinal beam 3.3 through a connecting plate 3.5,
as shown in fig. 4, the stiffening plate 3.4 comprises an upper wing 3.6, a web 3.7 and a lower wing 3.8,
the upper wing 3.6 and the lower wing 3.8 are jointed and riveted with the longitudinal beam 3.3,
the lower wing 3.8 extends to the middle section of the longitudinal beam 3.3,
the web 3.7 is welded to the longitudinal beam 3.3 by means of a spacer 3.9.
As shown in fig. 5 and 7, the rear axle 10 includes a rear axle housing body, a flange plate and a pair of axle sleeves,
the flange is quadrilateral, one group of opposite sides are parallel straight sides, the other group of opposite sides are concentric circular arc sides,
as shown in FIG. 6, the semi-axis sleeve is divided into 4 sections comprising an L1 section, an L2 section, an L3 section and an L4 section,
the segment L2 is a spinal canal,
the flange plate is sleeved with the L2 section,
the section L4 is spliced and welded with the rear axle housing body,
wherein the length of the L1 segment is 83.5mm, the inner diameter is 35mm, the outer diameter is 55mm,
the external diameter of the small-diameter end of the vertebral canal is 55mm, the internal diameter is 35mm,
the external diameter of the large-diameter end of the vertebral canal is 80mm, the internal diameter is 60mm,
the L4 segment was 130mm in length, 58mm in inside diameter and 78mm in outside diameter.
L3 segment length was 327mm, internal diameter was 60mm and external diameter was 80 mm.
The length of the L3 segment is 433mm, the inner diameter is 60mm, the outer diameter is 80mm,
when the length of the L3 segment is 327mm, a rear axle with a 1538mm track width can be matched,
when the length of the L3 segment is 433mm, a rear axle with a 1750mm track width can be matched,
the matched rear axle structure is as follows: the middle is integrally cast, the two ends are inserted into tubes,
in order to reduce the dead weight of the bridge and the unsprung mass, the rear axle assembly of the product adopts a small-size main reducer, and the diameter of a large gear of the main reducer is only 240 mm. Compared with the conventional rectangular section punching and welding axle housing on the market, the adopted cannula type half-axle sleeve greatly reduces the dead weight of the axle housing when meeting the bearing capacity of 3700 Kg. The weight of the rear axle assembly of the product is only 149Kg, and the bearing ratio reaches 24.8;
the rear axle main reducing gear is a high-precision high-performance hyperboloid-shaped equal-height gear which is high in strength and low in noise, and the noise of a rear axle assembly is less than 76 dB. The hyperboloid equal-tooth gear has large overlapping coefficient, stable operation and high transmission efficiency, and the efficiency ranges of all speeds under the maximum power of a 100 percent engine are as follows: 95.6 to 97.9 percent.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to further illustrate the principles of the utility model, and that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is also intended to be covered by the appended claims. The scope of the utility model is defined by the claims and their equivalents.
Claims (7)
1. A commercial vehicle chassis matched with an eight-speed automatic transmission is characterized by comprising an engine (1), a transmission (2), a vehicle frame (3), a national six post-treatment device (4), an air suspension (5), a front axle (6), a radiator (7), a flexible coupling (8), a transmission shaft (9) and a rear axle (10),
the engine (1) is in transmission connection with the speed changer (2),
the speed changer (2) is fixedly connected with the national six post-treatment (4),
the speed changer (2) is in transmission connection with a front axle (6),
a radiator (7) is arranged on one side of the speed changer (2), the radiator (7) is connected with the speed changer (2) through an oil pipe,
the bottom of the speed changer (2) is provided with an electronic control unit which is connected with the speed changer (2) in a nested way,
the speed changer (2) is in transmission connection with a rear axle (10) through a transmission shaft (9),
the engine (1), the speed changer (2) and the air suspension (5) are fixedly connected with the frame (3),
one side of the transmission shaft (9) is provided with a flexible coupling (8),
the transmission (2) is connected to a transmission shaft (9) by a flexible coupling (8).
2. The commercial vehicle chassis matched with the eight-speed automatic transmission is characterized in that an emergency unlocking device (11) is arranged at the upper end of the vehicle frame (3),
the emergency unlocking device (11) comprises a drawn wire (3.1), the transmission (2) comprises a rocker arm (2.1), and the emergency unlocking device (11) is connected to the rocker arm (2.1) through the drawn wire.
3. Commercial vehicle chassis matched with eight-speed automatic transmission according to claim 1, characterized in that the air suspension (5) comprises a guide spring (5.1), a height valve (5.2), an air bag (5.3), a control box (5.4) and an instrument panel electric control unit,
one end of the guide spring (5.1) is rigidly connected with the frame (3),
the other end is rigidly connected with the frame (3) through an air bag (5.3),
one side of the air bag is provided with a height valve (5.2), the height valve (5.2) is fixedly connected with the frame (3),
the height valve (5.2) is electrically connected to a control box (5.4), and the control box (5.4) is electrically connected to an instrument panel electronic control unit.
4. Commercial vehicle chassis matched with an eight-speed automatic transmission according to claim 1, characterized in that the vehicle frame (3) comprises cross beams (3.2), longitudinal beams (3.3) and reinforcing plates (3.4),
the cross beam (3.2) is riveted with the longitudinal beam (3.3) through a connecting plate (3.5),
the reinforcing plate (3.4) comprises an upper wing (3.6), a web plate (3.7) and a lower wing (3.8),
the upper wing (3.6) and the lower wing (3.8) are jointed and riveted with the longitudinal beam (3.3),
the lower wing (3.8) extends to the middle section of the longitudinal beam (3.3),
the web plate (3.7) is welded with the longitudinal beam (3.3) through a spacer bush (3.9).
5. The commercial vehicle chassis matched with the eight-speed automatic transmission according to claim 1, wherein the rear axle (10) comprises a rear axle housing body, a flange plate and a pair of axle sleeves,
the flange is quadrilateral, one group of opposite sides are parallel straight sides, the other group of opposite sides are concentric circular arc sides,
the semi-axis sleeve is divided into 4 sections comprising an L1 section, an L2 section, an L3 section and an L4 section,
the segment L2 is a spinal canal,
the flange plate is sleeved with the L2 section,
the L4 section is spliced and welded with the rear axle housing body,
wherein the length of the L1 segment is 83.5mm, the inner diameter is 35mm, the outer diameter is 55mm,
the external diameter of the small-diameter end of the vertebral canal is 55mm, the internal diameter is 35mm,
the external diameter of the large-diameter end of the vertebral canal is 80mm, the internal diameter is 60mm,
the L4 segment was 130mm in length, 58mm in inside diameter and 78mm in outside diameter.
6. The commercial vehicle chassis matched with the eight-speed automatic transmission is characterized in that,
the L3 end has a length of 327mm, an internal diameter of 60mm and an external diameter of 80 mm.
7. The commercial vehicle chassis matched with the eight-speed automatic transmission is characterized in that,
the L3 end has a length of 433mm, an inner diameter of 60mm and an outer diameter of 80 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202121425422.5U CN216467345U (en) | 2021-06-25 | 2021-06-25 | Commercial vehicle chassis matched with eight-speed automatic transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121425422.5U CN216467345U (en) | 2021-06-25 | 2021-06-25 | Commercial vehicle chassis matched with eight-speed automatic transmission |
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| CN216467345U true CN216467345U (en) | 2022-05-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285224A (en) * | 2022-07-29 | 2022-11-04 | 东风柳州汽车有限公司 | Pipeline structure of tractor and arrangement method thereof |
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2021
- 2021-06-25 CN CN202121425422.5U patent/CN216467345U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285224A (en) * | 2022-07-29 | 2022-11-04 | 东风柳州汽车有限公司 | Pipeline structure of tractor and arrangement method thereof |
| CN115285224B (en) * | 2022-07-29 | 2023-06-16 | 东风柳州汽车有限公司 | Tractor pipeline structure and arrangement method thereof |
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