CN219236763U - Truck chassis with hydraulic mechanical drive gear box - Google Patents
Truck chassis with hydraulic mechanical drive gear box Download PDFInfo
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- CN219236763U CN219236763U CN202223594005.0U CN202223594005U CN219236763U CN 219236763 U CN219236763 U CN 219236763U CN 202223594005 U CN202223594005 U CN 202223594005U CN 219236763 U CN219236763 U CN 219236763U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The utility model relates to a truck chassis with a hydromechanically driven gearbox. The truck chassis comprises an engine, a full-power takeoff, a hydraulic pump, a clutch, a transmission, a front axle, a first transmission shaft, a second transmission shaft, a hydraulic mechanical driving gearbox, a hydraulic motor, a third transmission shaft and a rear axle; the truck chassis running state is divided into a high-speed running state and a low-speed operation state. The utility model is provided with an input interface which is connected with the power output of a vehicle chassis transmission; two front and rear axle output interfaces which are respectively connected with the front and rear drive axles of the vehicle chassis; the gear switching mechanism is arranged in the device, so that the gear switching can be realized, one is a driving gear and the other is a working gear; when the vehicle is in a working gear, the vehicle is switched to a hydraulic transmission mode, the transmission does not output (neutral gear) or has output (X gear), and hydraulic transmission work is not affected; the power of the hydraulic motor comes from the hydraulic pump driven by the full power takeoff.
Description
Technical Field
The utility model relates to the field of automobiles, in particular to a truck chassis with a hydraulic mechanical driving gear box.
Background
The traditional transfer case product is mainly used for four-wheel drive of an automobile, and the four-wheel drive of the automobile is realized through the transfer case, so that the running performances such as the climbing performance, the cross-country performance and the like of the whole automobile are improved. The transfer case is more used in road maintenance special-purpose vehicles. The gearbox device for realizing hydraulic mechanical driving of the vehicle can adapt to the low-speed operation environment of a special vehicle so as to meet the operation requirements of road sweeper and road snow remover. The patent application 201921326186.4 describes a transfer case for low speed driving, which is mainly: one side of the middle part of the box body is rotatably provided with a main input shaft through a first bearing, one end of the main input shaft extending out of the box body is connected with a transmission shaft of an automobile gearbox, the other side of the main input shaft is rotatably provided with a main output shaft through a second bearing, one end of the main output shaft extending out of the box body is connected with a rear axle transmission shaft of the automobile, the other end of the main input shaft extending into the box body is movably connected with the other end of the main output shaft extending into the box body through a third bearing, a main input gear is arranged on the main input shaft in the box body, a main output gear is rotatably arranged on the main output shaft in the box body through a fourth bearing, first inner teeth are arranged at one end of the main output gear, and second inner teeth are arranged on the main input shaft. The patent is a two-stage reduction gearbox, the speed of the vehicle is reduced by a transfer case through a transmission, and the vehicle has insufficient low-speed stability although the total transmission speed ratio is increased to a certain extent. A special vehicle for a mechanical hydraulic compound transfer case transmission is described in the patent application No. 201410076251.8. The mechanical hydraulic composite transfer case is provided with two power input ports and three power output ports, the main power input port is in transmission connection with the output of the automobile gearbox, and the power output port for driving the operation device to operate is connected with a transmission shaft of a special operation device of the special operation device. Due to the adoption of the technical scheme, the defect that the current special vehicles cannot directly take power from the chassis engine to drive the special device for operation is overcome, and the operation device with special power requirements can directly take power from the chassis. The mechanical hydraulic compound transfer case described in the patent is a foreign product well known in the industry, the power input of the transfer case is transmission output, the gear of the transmission and the clutch of the automobile transmission system have great influence on the pump rotation speed of the transfer case, the work is unstable, and the gear shifting impact is great. The patent of application number 201922330968.1 describes a four-drive transfer case assembly and an automobile, wherein the four-drive transfer case assembly mainly comprises an input shaft, a rear axle output shaft, a double-clutch gear shifting assembly and a front axle output shaft, and a low-gear input gear and a high-gear input gear are sleeved on the input shaft; the output shaft of the rear axle is sleeved with a high-grade output gear meshed with the high-grade input gear; the double-clutch gear shifting assembly comprises a low-gear clutch and a high-gear clutch, wherein the input end of the low-gear clutch is in transmission connection with a low-gear input gear, the input end of the high-gear clutch is in transmission connection with a rear axle output shaft, and the output end of the low-gear clutch and the output end of the high-gear clutch are integrally arranged to form the output end of the double-clutch gear shifting assembly; the front axle output shaft is in transmission connection with the output end of the double-clutch gear shifting assembly. The patent is mainly satisfied with off-road vehicles, and does not consider the special vehicle operation performance of the vehicle. The patent of application number 201710892918.5 describes a full-hydraulic four-wheel drive walking device for a snow remover, comprising a chassis, wherein a driving device is arranged on the chassis, the driving device is connected with a hydraulic driving part, the hydraulic driving part is connected with a front driving axle and a rear driving axle respectively, and the problem that the conventional automobile chassis can only provide rear wheel drive and front wheel steering and is not suitable for the walking mode of the chassis of the snow remover is solved. The patent is a full-hydraulic drive automobile chassis, and because the main element in the transmission system is hydraulic transmission, the working condition of high-speed transition operation of the automobile is difficult to realize. The patent application No. 201220567388.X describes a hybrid vehicle energy-efficient transfer case characterized by a transfer case housing mounted between the vehicle gearbox and the engine; the hydraulic clutch and the second clutch are arranged in the shell; the connection and the separation of the two shafts and the first shaft are controlled by a hydraulic clutch; the connection and the separation of the two shafts and the three shafts are controlled by a second clutch; when one power is connected and the other power is needed to participate, the friction connection of the hydraulic 2 clutch assembly is completed under the control of the electric control assembly. The patent is a special transfer case for a hybrid new energy automobile, the input end of the transfer case is an engine and a motor, and the transfer case cannot be used for refitting a special automobile.
Disclosure of Invention
The utility model aims to provide a truck chassis with a hydraulic mechanical driving gear box, which solves the problems in the prior art.
The technical scheme of the utility model is as follows: the truck chassis comprises an engine, a full-power takeoff, a hydraulic pump, a clutch, a transmission, a front axle, a transmission shaft I, a transmission shaft II, a hydraulic mechanical driving gear box, a hydraulic motor, a transmission shaft III and a rear axle;
the truck chassis running state is divided into a high-speed running state and a low-speed operation state;
the engine is connected with a full-power takeoff in a high-speed running state, the full-power takeoff is connected with a clutch, the clutch is connected with a transmission, the transmission is connected with a hydraulic mechanical driving gear box through a transmission shaft II, the hydraulic mechanical driving gear box is connected with a front axle through a transmission shaft I, and the hydraulic mechanical driving gear box is connected with a rear axle through a transmission shaft III;
the engine is connected with a full-power takeoff in a low-speed operation state, the full-power takeoff is connected with a hydraulic pump, the hydraulic pump is connected with a hydraulic motor, the hydraulic motor is connected with a hydraulic mechanical driving gear box, the hydraulic mechanical driving gear box is connected with a front axle through a transmission shaft I, and the hydraulic mechanical driving gear box is connected with a rear axle through a transmission shaft III.
Further, the hydraulic mechanical driving gear box comprises a first input shaft, a box body, a motor power engagement mechanism, a hydraulic motor input gear shaft, a first input shaft driving gear, a second input shaft, a front axle output shaft, a bridge disengaging mechanism, an output gear, a third input shaft and a rear axle output shaft;
the motor power engagement mechanism is disconnected in the high-speed running state, the first input shaft is connected with the first input shaft driving gear, the first input shaft driving gear transmits power to the second input shaft, the output gear and the third input shaft, the third input shaft is respectively connected with the bridge disengagement mechanism and the rear axle output shaft, and the bridge disengagement mechanism is connected with the front axle output shaft;
the transmission is in a neutral gear under the low-speed operation state, the motor power engagement mechanism is engaged, power is transmitted to the hydraulic motor input gear shaft through the hydraulic motor, the hydraulic motor input gear shaft is connected with the first input shaft driving gear, the first input shaft driving gear transmits power to the second input shaft, the output gear and the third input shaft, the third input shaft is connected with the bridge disengagement mechanism and the rear axle output shaft respectively, and the bridge disengagement mechanism is connected with the front axle output shaft.
The beneficial effects of the utility model are as follows: an input interface for coupling to a power output of a vehicle chassis transmission; two front and rear axle output interfaces which are respectively connected with the front and rear drive axles of the vehicle chassis; the gear switching mechanism is arranged in the device, so that the gear switching can be realized, one is a driving gear and the other is a working gear; when the vehicle is in a working gear, the vehicle is switched to a hydraulic transmission mode, the transmission does not output (neutral gear) or has output (X gear), and hydraulic transmission work is not affected; the power of the hydraulic motor comes from the hydraulic pump driven by the full power takeoff.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model
Fig. 2 is a schematic structural view of a hydromechanical drive gearbox.
In the drawing, 1 is an engine, 2 is a full-power take-off, 3 is a hydraulic pump, 4 is a clutch, 5 is a transmission, 6 is a front axle, 7 is a first transmission shaft, 8 is a second transmission shaft, 9 is a hydromechanical drive gearbox, 10 is a hydraulic motor, 11 is a third transmission shaft, 12 is a rear axle, 13 is a first input shaft, 14 is a box body, 15 is a motor power engagement mechanism, 16 is a hydraulic motor input gear shaft, 17 is a first input shaft drive gear, 18 is a second input shaft, 19 is a front axle output shaft, 20 is a disengaging mechanism, 21 is an output gear, 22 is a third input shaft, and 23 is a rear axle output shaft.
Detailed Description
A truck chassis with a hydromechanical drive gearbox, the truck chassis comprising an engine 1, a full power take-off 2, a hydraulic pump 3, a clutch 4, a transmission 5, a front axle 6, a first drive shaft 7, a second drive shaft 8, a hydromechanical drive gearbox 9, a hydraulic motor 10, a third drive shaft 11 and a rear axle 12;
the truck chassis running state is divided into a high-speed running state and a low-speed operation state;
the engine 1 is connected with the full-power takeoff 2 in the high-speed driving state, the full-power takeoff 2 is connected with the clutch 4, the clutch 4 is connected with the transmission 5, the transmission 5 is connected with the hydromechanical driving gear box 9 through a transmission shaft II 8, the hydromechanical driving gear box 9 is connected with the front axle 6 through a transmission shaft I7, and the hydromechanical driving gear box 9 is connected with the rear axle 12 through a transmission shaft III 11;
the engine 1 is connected with the full power takeoff 2 in the low-speed operation state, the full power takeoff 1 is connected with the hydraulic pump 3, the hydraulic pump 3 is connected with the hydraulic motor 10, the hydraulic motor 10 is connected with the hydraulic mechanical driving gear box 9, the hydraulic mechanical driving gear box 9 is connected with the front axle 6 through a first transmission shaft 7, and the hydraulic mechanical driving gear box 9 is connected with the rear axle 12 through a third transmission shaft 11.
The hydraulic mechanical driving gear box 9 comprises a first input shaft 13, a box body 14, a motor power engagement mechanism 15, a hydraulic motor input gear shaft 16, a first input shaft driving gear 17, a second input shaft 18, a front axle output shaft 19, a bridge disengaging mechanism 20, an output gear 21, a third input shaft 22 and a rear axle output shaft 23;
the motor power coupling mechanism 15 is disconnected in the high-speed running state, the first input shaft 13 is connected with the first input shaft driving gear 17, the first input shaft driving gear 17 transmits power to the second input shaft 18, the output gear 21 and the third input shaft 22, the third input shaft 22 is respectively connected with the bridge disengaging mechanism 20 and the rear axle output shaft 23, and the bridge disengaging mechanism 20 is connected with the front axle output shaft 19;
the transmission 5 is in neutral gear in the low-speed operation state, the motor power engagement mechanism 15 is engaged, power is transmitted to the hydraulic motor input gear shaft 16 through the hydraulic motor 10, the hydraulic motor input gear shaft 16 is connected with the input shaft first driving gear 17, the input shaft first driving gear 17 transmits power to the input shaft second 18, the output gear 21 and the input shaft third 22, the input shaft third 22 is respectively connected with the disengaging mechanism 20 and the rear axle output shaft 23, and the disengaging mechanism 20 is connected with the front axle output shaft 19.
Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (2)
1. A truck chassis with a hydromechanical drive gearbox, characterized by: the truck chassis comprises an engine (1), a full-power takeoff (2), a hydraulic pump (3), a clutch (4), a transmission (5), a front axle (6), a first transmission shaft (7), a second transmission shaft (8), a hydraulic mechanical driving gear box (9), a hydraulic motor (10), a third transmission shaft (11) and a rear axle (12);
the truck chassis running state is divided into a high-speed running state and a low-speed operation state;
the engine (1) is connected with the full-power takeoff (2) in the high-speed running state, the full-power takeoff (2) is connected with the clutch (4), the clutch (4) is connected with the transmission (5), the transmission (5) is connected with the hydromechanical driving gear box (9) through a transmission shaft II (8), the hydromechanical driving gear box (9) is connected with the front axle (6) through a transmission shaft I (7), and the hydromechanical driving gear box (9) is connected with the rear axle (12) through a transmission shaft III (11);
the low-speed operation state under engine (1) be connected with full power takeoff (2), full power takeoff (2) be connected with hydraulic pump (3), hydraulic pump (3) be connected with hydraulic motor (10), hydraulic motor (10) be connected with hydro-mechanical drive gear box (9), hydro-mechanical drive gear box (9) be connected with front axle (6) through transmission shaft one (7), hydro-mechanical drive gear box (9) be connected with rear axle (12) through transmission shaft three (11).
2. A truck chassis with a hydromechanical drive gearbox according to claim 1, wherein: the hydraulic mechanical driving gear box (9) comprises a first input shaft (13), a box body (14), a motor power engagement mechanism (15), a hydraulic motor input gear shaft (16), a first input shaft driving gear (17), a second input shaft (18), a front axle output shaft (19), a bridge disengaging mechanism (20), an output gear (21), a third input shaft (22) and a rear axle output shaft (23);
the motor power engagement mechanism (15) is disconnected in the high-speed running state, the first input shaft (13) is connected with the first input shaft driving gear (17), the first input shaft driving gear (17) transmits power to the second input shaft (18), the output gear (21) and the third input shaft (22), the third input shaft (22) is connected with the bridge disengagement mechanism (20) and the rear axle output shaft (23) respectively, and the bridge disengagement mechanism (20) is connected with the front axle output shaft (19);
the transmission (5) is in neutral gear under the low-speed operation state, the motor power engagement mechanism (15) is engaged, power is transmitted to the hydraulic motor input gear shaft (16) through the hydraulic motor (10), the hydraulic motor input gear shaft (16) is connected with the input shaft one driving gear (17), the input shaft one driving gear (17) transmits power to the input shaft two (18), the output gear (21) and the input shaft three (22), the input shaft three (22) is connected with the bridge disengagement mechanism (20) and the rear axle output shaft (23) respectively, and the bridge disengagement mechanism (20) is connected with the front axle output shaft (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223594005.0U CN219236763U (en) | 2022-12-30 | 2022-12-30 | Truck chassis with hydraulic mechanical drive gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223594005.0U CN219236763U (en) | 2022-12-30 | 2022-12-30 | Truck chassis with hydraulic mechanical drive gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219236763U true CN219236763U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223594005.0U Active CN219236763U (en) | 2022-12-30 | 2022-12-30 | Truck chassis with hydraulic mechanical drive gear box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219236763U (en) |
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2022
- 2022-12-30 CN CN202223594005.0U patent/CN219236763U/en active Active
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