CN215204425U - Hydraulic driving system of underground service vehicle - Google Patents
Hydraulic driving system of underground service vehicle Download PDFInfo
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- CN215204425U CN215204425U CN202121045404.4U CN202121045404U CN215204425U CN 215204425 U CN215204425 U CN 215204425U CN 202121045404 U CN202121045404 U CN 202121045404U CN 215204425 U CN215204425 U CN 215204425U
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Abstract
The utility model provides a service cart hydraulic drive system in pit, power output shaft including the engine is connected to hydraulic pressure variable pump, and hydraulic pressure variable pump's pressurized oil is connected to hydraulic pressure variable motor, its characterized in that via the hydraulic pressure rubber tube: the power output shaft of the engine is connected to the hydraulic variable pump through the connecting disc, the hydraulic variable motor is provided with a front output end and a rear output end, the two output ends are respectively connected to a front transmission shaft and a rear transmission shaft on the front axle and the rear axle, and the two ends of the front transmission shaft and the rear transmission shaft are respectively connected with a front wheel and a rear wheel. The engine first drives a hydraulic variable pump, the hydraulic variable pump conveys hydraulic oil to a hydraulic variable motor, a rotor of the hydraulic variable motor is connected with a front rotor shaft and a rear rotor shaft to form a front torque output end and a rear torque output end, the front torque output end and the rear torque output end are respectively connected with and drive a front transmission shaft and a rear transmission shaft on a front axle and a rear axle, and then wheels arranged at two ends of the front transmission shaft and the rear transmission shaft are driven to realize vehicle running.
Description
Technical Field
The system relates to the technical field of transmission systems of underground trackless vehicles of mines, in particular to a hydrostatic transmission system of an underground service vehicle.
Background
The underground service vehicle is mainly applied to underground auxiliary operation of a mine, and the working condition is extremely severe. At present, most service vehicles adopt an engine to connect a torque converter and a gearbox, and the gearbox is connected with a front axle and a rear axle through a transmission shaft to realize power transmission. The transmission mode requires frequent gear shifting operation of a driver according to complex road conditions, and is inconvenient to drive and easy to fatigue.
The present invention relates to a hydraulic drive system for underground trackless equipment of individual manufacturers, which is characterized by that it mainly adopts engine-hydraulic pump-hydraulic motor-speed reducer-axle-tyre or adopts engine-hydraulic pump-hydraulic valve-several hydraulic motors-tyres, the former adopts speed reducer output power and is connected with front and rear axles by means of transmission shaft to implement power transmission, and the latter adopts hydraulic pump to drive several hydraulic motors connected with tyres to implement power transmission, and is named as "hydraulic drive system" (document No. CN 106536252A), and its disclosed technical content includes that the 1 st hydraulic motor 12 and 2 nd hydraulic motor 22 are respectively used for transmitting power of engine 4 to different driving wheels of left and right driving wheels 2 and 3.
Both transmission systems have a plurality of parts, complex structures and inconvenient maintenance.
SUMMERY OF THE UTILITY MODEL
For the negative effects of avoiding above transmission system to bring for the vehicle, the utility model aims at providing a transmission link part is few, transmission efficiency is high and operating mode strong adaptability's downhole service car hydraulic drive transmission system.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a service cart hydraulic drive system in pit, includes that the power output shaft of engine is connected to hydraulic pressure variable pump, and hydraulic pressure variable pump's pressurized oil is connected to hydraulic pressure variable motor through the hydraulic hose, its characterized in that: the power output shaft of the engine is connected to the hydraulic variable pump through the connecting disc, the hydraulic variable motor is provided with a front output end and a rear output end, the two output ends are respectively connected to a front transmission shaft and a rear transmission shaft on the front axle and the rear axle, and the two ends of the front transmission shaft and the rear transmission shaft are respectively connected with a front wheel and a rear wheel.
According to the technical scheme, the engine firstly drives the hydraulic variable pump, the hydraulic variable pump conveys hydraulic oil to the hydraulic variable motor, a rotor of the hydraulic variable motor is connected with a front rotor shaft and a rear rotor shaft to form a front torque output end and a rear torque output end, the front torque output end and the rear torque output end are respectively connected with and drive a front transmission shaft and a rear transmission shaft on a front axle and a rear axle, and then wheels arranged at two ends of the front transmission shaft and the rear transmission shaft are driven to realize vehicle running. The beneficial effects of the utility model are that transmission system transmission simple structure realizes power transmission and has full-time four wheel drive concurrently, and this system controls the performance well, and the road surface trafficability characteristic is strong, and the reliability is high.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a top view of fig. 1.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a hydraulic drive system for a downhole service vehicle includes a power output shaft of an engine 10 connected to a hydraulic variable pump 30, pressure oil of the hydraulic variable pump 30 is connected to a hydraulic variable motor 50 through a hydraulic hose 40, the power output shaft of the engine 10 is connected to the hydraulic variable pump 30 through a connecting disc 20, the hydraulic variable motor 50 is a front output end and a rear output end, the two output ends are respectively connected to a front axle shaft 61 and a rear axle shaft 71 on a front axle 60 and a rear axle 70, and two ends of the front axle shaft 61 and the rear axle shaft 71 are respectively connected to front wheels 62 and rear wheels 72.
More preferably, the front and rear output ends of the hydraulic variable displacement motor 50 are respectively connected to one ends of front and rear transmission shafts 63, 73 arranged in the vehicle length direction, and the other ends of the two front and rear transmission shafts 73, 74 are respectively connected to the front axle shaft 61 and the rear axle shaft 71 on the front axle 60 and the rear axle 70.
In the scheme, the inlet and the outlet of the hydraulic variable pump 30 are connected with an oil tank through a hydraulic rubber tube, and the engine 10 drives the hydraulic variable pump 30 to work through the connecting disc 20 when working, so that mechanical energy is converted into hydraulic energy; the working ports of the hydraulic variable pump 30 are connected to the working ports of the variable motor 50 through the hydraulic line 40, and the variable motor 50 converts the hydraulic energy transmitted from the hydraulic variable pump 30 into mechanical energy to be output. The front output end of the variable motor 50 is connected to the front wheel 62 through the front transmission shaft 63, the front axle 60 and the front axle shaft 61, and the rear output end of the variable motor 50 is connected to the rear wheel 72 through the rear transmission shaft 73, the rear axle 70 and the rear axle shaft 71, so that the power transmission of the vehicle is realized.
The oil pressure of the hydraulic variable pump 30, which is the accelerator pedal angle, is connected to a displacement controller of a hydraulic variable motor 50 via a hydraulic hose 40. The controller changes the displacement of the variable pump 30 and the variable motor 50 by monitoring the running speed of the vehicle and the angle of an accelerator pedal during running of the vehicle, so as to realize different power outputs. The direction change of the vehicle is realized by changing the swash plate angle of the variable displacement pump through a control button or a steering wheel.
Claims (3)
1. A hydraulic driving system of a downhole service vehicle, which comprises a power output shaft of an engine (10) connected to a hydraulic variable pump (30), and pressure oil of the hydraulic variable pump (30) is connected to a hydraulic variable motor (50) through a hydraulic hose (40), and is characterized in that: the power output shaft of the engine (10) is connected to the hydraulic variable pump (30) through the connecting disc (20), the hydraulic variable motor (50) is provided with a front output end and a rear output end, the two output ends are respectively connected to a front axle shaft (61) and a rear axle shaft (71) on a front axle (60) and a rear axle (70), and the two ends of the front axle shaft (61) and the rear axle shaft (71) are respectively connected with a front wheel (62) and a rear wheel (72).
2. The downhole service vehicle hydraulic drive system of claim 1, wherein: the front and rear output ends of the hydraulic variable motor (50) are respectively connected with one ends of front and rear transmission shafts (73, 74) arranged in the vehicle length direction, and the other ends of the two front and rear transmission shafts (73, 74) are respectively connected with a front axle shaft (61) and a rear axle shaft (71) on a front vehicle axle (60) and a rear vehicle axle (70).
3. The downhole service vehicle hydraulic drive system of claim 1, wherein: the accelerator pedal angle is that the pressure oil of the hydraulic variable pump (30) is connected to a displacement controller of a hydraulic variable motor (50) through a hydraulic hose (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121045404.4U CN215204425U (en) | 2021-05-14 | 2021-05-14 | Hydraulic driving system of underground service vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121045404.4U CN215204425U (en) | 2021-05-14 | 2021-05-14 | Hydraulic driving system of underground service vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215204425U true CN215204425U (en) | 2021-12-17 |
Family
ID=79419072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121045404.4U Active CN215204425U (en) | 2021-05-14 | 2021-05-14 | Hydraulic driving system of underground service vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215204425U (en) |
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2021
- 2021-05-14 CN CN202121045404.4U patent/CN215204425U/en active Active
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