CN210423633U - Transfer case assembly of single-engine sweeping machine - Google Patents

Transfer case assembly of single-engine sweeping machine Download PDF

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Publication number
CN210423633U
CN210423633U CN201921063437.4U CN201921063437U CN210423633U CN 210423633 U CN210423633 U CN 210423633U CN 201921063437 U CN201921063437 U CN 201921063437U CN 210423633 U CN210423633 U CN 210423633U
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China
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transfer case
engine
power
gear
transmission shaft
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CN201921063437.4U
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Chinese (zh)
Inventor
单龙
温玉霜
刘兴忠
马华静
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Xuzhou XCMG Environment Technology Co Ltd
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Xuzhou XCMG Environment Technology Co Ltd
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Abstract

The utility model relates to a transfer case assembly of a single-engine sweeping machine, which comprises a transfer case arranged between a front transmission shaft and a rear transmission shaft of a chassis, wherein the transfer case is connected with a cleaning component and a hydraulic walking system synchronously driven with the cleaning component through mechanical transmission; the main gearbox of engine transmits power to the transfer case through preceding transmission shaft, and the transfer case passes through pneumatic clutch I can transmit power to the rear axle through the back with the transmission shaft joint, through gear drive with the band pulley and the walking variable pump of power transmission drive fan, the beneficial effects of the utility model are that: when the rear axle running device works, the connection of the two half axles of the chassis is cut off through the transfer case, and then the rear axle running operation is driven through the control of the pump control motor closed type hydraulic system. The engine is used, the main working device is driven by adopting a mechanical transmission mode, and the chassis is driven by adopting a closed hydraulic system to run, so that the requirements of low-speed running and stepless speed change under the working condition are met, and the beneficial effects of energy conservation, emission reduction and noise reduction are achieved.

Description

Transfer case assembly of single-engine sweeping machine
Technical Field
The utility model relates to a transfer case assembly of single-engine sweeping machine belongs to sanitation vehicle technical field.
Background
With the increasing requirements of people on the surrounding environment, various cleaning special vehicles for urban streets, plaza streets and high-grade roads are continuously present in the visual field of people. Most of these vehicles use a sub-engine as a power source for a working device. Therefore, two engines are arranged on one sweeping machine, under the working condition, the chassis engine can run at a low rotating speed and a large torque for a long time, the power utilization rate is very low, the fuel consumption rate is increased at the same time, and the energy waste is caused. Meanwhile, the fuel consumption rate, noise pollution and exhaust emission of the two engines operating simultaneously are necessarily more, and the environment is damaged.
A plurality of domestic road sweeper manufacturers strive to research and develop single-engine road sweeper which has the following transmission modes: taking power out of a transmission shaft behind a chassis gearbox, and driving an operation device and a chassis to run; the hydraulic driving mode is characterized in that when the hydraulic driving mode works, power from an engine drives a walking variable pump, a fan pump and a working device hydraulic pump respectively. The sanitation vehicle has the following defects: the first transmission mode has the disadvantage that when a main clutch or a gearbox of a chassis is operated, the rotating speed and the torque of a power takeoff are changed, the power matching point of a working device is changed, and the working performance of the working device is influenced; the second transmission mode is more applied in European and American countries, but the road surface condition of China is poorer, the garbage components are complex, the hydraulic related technology in China still needs to be improved, the comprehensive cost is higher, and the transmission efficiency of the system is lower than that of mechanical transmission, so that certain limit is caused to the development of the national aspect.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a transfer case assembly of a single-engine sweeping machine, which has high transmission efficiency, low power loss and stable and reliable working condition.
The utility model discloses a realize through following technical scheme: the utility model provides a transfer case assembly of single-engine sweeping machine which characterized in that: the transfer case is connected with a cleaning component and a hydraulic traveling system which is driven synchronously with the cleaning component through mechanical transmission;
the main gearbox of the engine transmits power to the transfer case through a front transmission shaft, a pneumatic clutch I, a high-speed shaft of the transfer case, a medium-speed shaft of the transfer case and a low-speed shaft of the transfer case are arranged in the transfer case, the transfer case can be jointed with the transmission shaft through the pneumatic clutch I to transmit the power to a rear axle through the rear axle, the pneumatic clutch I can be jointed with a gear I which is sleeved on the low-speed shaft in an empty mode, and the power is transmitted to the medium-speed shaft and the high-speed shaft through a gear transmission mechanism;
two ends of a high-speed shaft of the transfer case respectively drive a belt wheel of a fan and a walking variable pump, and the walking variable pump drives a walking hydraulic motor through a pump control motor closed system;
the side power take-off assembly is connected in a main gearbox of the engine to take out power of the engine and drive a working oil pump, and the working oil pump drives a sweeping disc, a sucking disc and a fan to work cooperatively to complete a sweeping function.
The transfer case realizes the switching of operation modes through the matching of a gear and a pneumatic clutch, and in a non-working state, a front transmission shaft and a rear transmission shaft are jointed through the pneumatic clutch I in the transfer case to transmit the power of a main gearbox of an engine to a rear axle, so that the non-working running of the road sweeper is realized; under the operating condition, the power of the main gearbox of the engine is transmitted to the front transmission shaft, the power is transmitted to the high-speed shaft of the transfer case and the medium-speed shaft of the transfer case through the meshing of the gears I, the power is transmitted to the walking variable pump through the high-speed shaft of the transfer case, the walking variable pump drives the walking hydraulic motor, and the vehicle is driven to realize hydraulic running.
Under the non-working state, power is directly transmitted to a rear axle from a main gear box of the engine to drive the vehicle to normally run, and a gear I and a motor output gear which are sleeved on a low-speed shaft of the transfer case do not rotate.
Under the working state, the pneumatic clutch I is connected leftwards to drive the gear I of the empty sleeve to rotate, the two half shafts of the front transmission shaft and the rear transmission shaft are disconnected, the high-speed shaft of the transfer case drives the traveling variable pump to drive the traveling hydraulic motor to drive the motor input shaft through the pump control motor closed system and drive the motor input gear to rotate, the pneumatic clutch II is connected with the motor output gear, the motor input gear is meshed with the motor output gear and transmits power to the rear axle, and the vehicle is driven to realize hydraulic traveling.
The utility model has the advantages that: when the rear axle running device works, the connection of the two half axles of the chassis is cut off under the action of the transfer case, and then the rear axle running operation is driven under the control of the pump control motor closed type hydraulic system. The engine is used, the main working device is driven by adopting a mechanical transmission mode, and the chassis is driven by adopting a closed hydraulic system to run, so that the requirements of low-speed running and stepless speed change under the working condition are met, and the beneficial effects of energy conservation, emission reduction and noise reduction are achieved.
Drawings
The invention will be further explained below with reference to the drawings and examples.
FIG. 1 is a transmission scheme diagram of the power system of the whole vehicle of the present invention;
fig. 2 is a working principle diagram of the transfer case of the utility model.
Detailed Description
A transfer case assembly for a single engine sweeper truck as shown in fig. 1 and 2, characterized by: the transfer case 2 is arranged between a front transmission shaft 13 and a rear transmission shaft 14 of a chassis, and the transfer case 2 is connected with a cleaning assembly and a hydraulic traveling system which is driven synchronously with the cleaning assembly through mechanical transmission;
the main gearbox 15 of the engine transmits power to the transfer case 2 through a front transmission shaft 13, a pneumatic clutch I24, a transfer case high-speed shaft 18, a transfer case middle-speed shaft 19 and a transfer case low-speed shaft 20 are arranged in the transfer case 2, the transfer case 2 can be jointed with a transmission shaft 14 through the pneumatic clutch I24 to transmit the power to a rear axle through the rear axle, the pneumatic clutch I24 can be jointed with a gear I27 which is sleeved on the low-speed shaft 20 in an empty mode, and the power is transmitted to the middle-speed shaft 19 and the high-speed shaft 18 through a gear transmission mechanism;
two ends of a high-speed shaft 18 of the transfer case respectively drive a belt wheel of the fan 10 and the walking variable pump 11, and the walking variable pump 11 drives the walking hydraulic motor 12 through a pump control motor closed system;
the side power take-off assembly 3 is connected in a main gearbox 15 of the engine to take out power of the engine and drive a working oil pump, and the working oil pump drives a sweeping disc, a sucking disc and a fan to work cooperatively to complete a sweeping function.
The transfer case 2 is matched with a gear and a pneumatic clutch to realize switching of operation modes, and in a non-working state, a front transmission shaft 13 and a rear transmission shaft 14 are connected through a pneumatic clutch I24 in the transfer case 2 to transmit power of an engine main gearbox 15 to a rear axle, so that non-working running of the sweeping machine is realized; under the working state, the power of the main gear box 15 of the engine is transmitted to the front transmission shaft 13, is meshed through the gear I27, is transmitted to the high-speed shaft 18 and the medium-speed shaft 19 of the transfer box, is transmitted to the traveling variable pump 11 through the high-speed shaft 18 of the transfer box, and the traveling variable pump 11 drives the traveling hydraulic motor 12 to drive the vehicle to realize hydraulic traveling.
During normal running, the power transmitted from the main gear box 15 of the engine is used for jointing the front transmission shaft 13 and the rear transmission shaft 14 through the transfer case 2, the two half shafts of the front transmission shaft 13 and the rear transmission shaft 14 are connected, the pneumatic clutch II 21 is disconnected, the power is directly transmitted to the rear axle to drive the vehicle to run normally, and the gear I27 and the motor output gear 25 which are sleeved on the low-speed shaft 20 of the transfer case do not rotate.
Under the working state, the pneumatic clutch I24 is engaged leftwards to drive the gear I27 which is not sleeved to rotate, two half shafts of the front transmission shaft 13 and the rear transmission shaft 14 are disconnected, power cannot be transmitted to the rear axle from the way, the gear I27 transmits the power to the transfer case intermediate speed shaft 19 and the transfer case high speed shaft 18 through the gear transmission mechanism, two ends of the transfer case high speed shaft 18 respectively drive a belt wheel of the fan 10 and the traveling variable pump 11, the traveling variable pump 11 drives the traveling hydraulic motor 12 to drive the motor input shaft 22 through a pump control motor closed system to drive the motor input gear 30 to rotate, the pneumatic clutch II 21 is engaged with the motor output gear 25, the motor input gear is engaged with the motor output gear, the power is transmitted to the rear axle, and the vehicle is driven to realize hydraulic traveling.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The utility model provides a transfer case assembly of single-engine sweeping machine which characterized in that: the transfer case (2) is arranged between a front transmission shaft (13) and a rear transmission shaft (14) of a chassis, and the transfer case (2) is connected with a cleaning assembly and a hydraulic traveling system which is driven synchronously with the cleaning assembly through mechanical transmission;
the power transmission device is characterized in that a main gearbox (15) of an engine transmits power to a transfer case (2) through a front transmission shaft (13), a pneumatic clutch I (24), a transfer case high-speed shaft (18), a transfer case medium-speed shaft (19) and a transfer case low-speed shaft (20) are arranged in the transfer case (2), the transfer case (2) can be connected with a transmission shaft (14) through the pneumatic clutch I (24) to transmit the power to a rear axle through the rear axle, the pneumatic clutch I (24) can be connected with a gear I (27) which is sleeved on the transfer case low-speed shaft (20) in an empty mode, and the power is transmitted to the medium-speed shaft (19) and the high-speed shaft (18) through a gear transmission mechanism;
two ends of a high-speed shaft (18) of the transfer case respectively drive a belt wheel of the fan (10) and the traveling variable pump (11), and the traveling variable pump (11) drives the traveling hydraulic motor (12) through a pump control motor closed system;
the side force taking assembly (3) is connected in a main gearbox (15) of the engine to take out the power of the engine, a working oil pump is driven, and the working oil pump drives a sweeping disc, a sucking disc and a fan to work cooperatively to complete the sweeping function.
2. The transfer case assembly of a single engine sweeping machine of claim 1 further comprising: the transfer case (2) realizes the switching of operation modes through the matching of a gear and a pneumatic clutch, and in a non-working state, a front transmission shaft (13) and a rear transmission shaft (14) are connected through a pneumatic clutch I (24) in the transfer case (2) to transmit the power of an engine main gearbox (15) to a rear axle, so that the non-working running of the sweeping vehicle is realized; under the working state, the power of a main gear box (15) of an engine is transmitted to a front transmission shaft (13), the power is transmitted to a high-speed shaft (18) and a medium-speed shaft (19) of a transfer box through the meshing of a gear I (27), the power is transmitted to a walking variable pump (11) through the high-speed shaft (18) of the transfer box, the walking variable pump (11) drives a walking hydraulic motor (12), and a vehicle is driven to realize hydraulic running.
3. The transfer case assembly of a single engine sweeping machine of claim 2, wherein: under the non-working state, power is directly transmitted to a rear axle from a main gear box (15) of the engine to drive the vehicle to normally run, and a gear I (27) and a motor output gear (25) which are sleeved on a low-speed shaft (20) of the transfer box do not rotate.
4. The transfer case assembly of a single engine sweeping machine of claim 2, wherein: under the working state, the pneumatic clutch I (24) is connected leftwards to drive the gear I (27) of the empty sleeve to rotate, two half shafts of the front transmission shaft (13) and the rear transmission shaft (14) are disconnected, the transfer case high-speed shaft (18) drives the traveling variable displacement pump (11) to drive the traveling hydraulic motor (12) to drive the motor input shaft (22) through a pump control motor closed system to drive the motor input gear (30) to rotate, the pneumatic clutch II (21) is connected with the motor output gear (25), the motor input gear is meshed with the motor output gear and transmits power to the rear axle, and the vehicle is driven to realize hydraulic traveling.
CN201921063437.4U 2019-07-09 2019-07-09 Transfer case assembly of single-engine sweeping machine Active CN210423633U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921063437.4U CN210423633U (en) 2019-07-09 2019-07-09 Transfer case assembly of single-engine sweeping machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921063437.4U CN210423633U (en) 2019-07-09 2019-07-09 Transfer case assembly of single-engine sweeping machine

Publications (1)

Publication Number Publication Date
CN210423633U true CN210423633U (en) 2020-04-28

Family

ID=70379658

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921063437.4U Active CN210423633U (en) 2019-07-09 2019-07-09 Transfer case assembly of single-engine sweeping machine

Country Status (1)

Country Link
CN (1) CN210423633U (en)

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