CN203309051U - Hydraulic mechanical composite transmission mechanism - Google Patents

Hydraulic mechanical composite transmission mechanism Download PDF

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Publication number
CN203309051U
CN203309051U CN201320231720XU CN201320231720U CN203309051U CN 203309051 U CN203309051 U CN 203309051U CN 201320231720X U CN201320231720X U CN 201320231720XU CN 201320231720 U CN201320231720 U CN 201320231720U CN 203309051 U CN203309051 U CN 203309051U
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China
Prior art keywords
hydraulic
transfer case
hydraulic motors
transmission system
transmission
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Active
Application number
CN201320231720XU
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Chinese (zh)
Inventor
赵建军
宋金宝
林嘉栋
金轲
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Shantui Chutian Construction Machinery Co Ltd
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Shantui Chutian Construction Machinery Co Ltd
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Priority to CN201320231720XU priority Critical patent/CN203309051U/en
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Abstract

The utility model relates to a hydraulic mechanical composite transmission mechanism. An engine is connected with a damper which is connected with a transfer case through a universal joint. A first power output shaft of the transfer case is connected with a hydraulic transmission system. The hydraulic transmission system comprises a duplex variable pump and double hydraulic motors. The duplex variable pump is connected with the double hydraulic motors through oil pipes. A second power output shaft of the transfer case is connected with a mechanical transmission device. The mechanical transmission device and the double hydraulic motors are respectively connected with a planetary gear box which is connected with a final speed reducer through a drive axle. The hydraulic mechanical composite transmission mechanism has the advantages of being high in transmission efficiency, achieving the automatic torque changing function, having high load self-adaptive ability, achieving stepless speed change through continuous transition of speeds between gears of a vehicle, enabling the variable pump with low emission and the hydraulic motors with low emission to be used, saving cost, achieving differential steering of the vehicle when the double hydraulic motors perform differential operation, and realizing hydrostatic steering.

Description

A kind of composite transmission mechanism of hydraulic machinery
Technical field
The utility model relates to a kind of engineering machinery, relates in particular to a kind of composite transmission mechanism of hydraulic machinery.
Background technique
At present, the power transmission mode that is applied to engineering machinery mainly contains mechanical transmission, hydraulic machine transmission and hydrostatic transmissions, its pluses and minuses as: mechanical transmission accurately and reliably, efficiency is high, simple to operate, but is difficult to realize stepless change, also poor to the adaptive ability of load; The hydraulic machine transmission is used comparatively extensive at present, and it has certain load adaptive ability, but implements also more complicated, and simultaneously efficient district is narrower, is also to realize stepless change; Hydrostatic transmissions can realize stepless change, has stronger load adaptive ability, but is subjected to fluid flow resistance and leakage contribution, and transmission efficiency is lower, adds the compressibility of fluid, can not guarantee strict velocity ratio.
The model utility content
Technical problem to be solved in the utility model is: a kind of composite transmission mechanism of hydraulic machinery is provided, can realizes vehicle Adaptive change automatic deceleration, realize the automatic torque-changing function, have stronger load adaptive ability; Pass through simultaneously the continuous transition of speed between automobile gear level, thereby realize stepless change; During the running of two hydraulic motors differential, realize that differential speed of vehicle turns to, have advantages of hydrostatic turning to.
The utility model is that the technological scheme that the problem of the above-mentioned proposition of solution adopts is:
A kind of composite transmission mechanism of hydraulic machinery, comprise motor 1, vibration damper 2, universal joint 3, transfer case 4, Hydraulic Power Transmission System 5, mechanical transmission 6, epicyclic gearbox 7, ransaxle 8 and whole speed reducer 9, motor 1 is connected with vibration damper 2, vibration damper 2 is connected with transfer case 4 by universal joint 3, the first pto=power take-off of transfer case 4 is connected with Hydraulic Power Transmission System 5, Hydraulic Power Transmission System 5 comprises duplex variable displacement pump 10 and two hydraulic motors 11, duplex variable displacement pump 10 is connected with two hydraulic motors 11 by oil pipe, the second pto=power take-off of transfer case 4 is connected with mechanical transmission 6, described mechanical transmission 6 is connected with epicyclic gearbox 7 respectively with two hydraulic motors 11, epicyclic gearbox 7 is connected with whole speed reducer 9 by ransaxle 8.
Described Hydraulic Power Transmission System 5 is Closed circuit hydraulic transmission system.
Described mechanical transmission 6 is dynamic power shift gear box.
Working principle of the present utility model: during the vehicle start operating mode, by motor by vibration damper and universal joint by transmission of power to transfer case, by transfer case, power is driven to two hydraulic motors by the duplex variable displacement pump in Hydraulic Power Transmission System again, two hydraulic motors is passed to whole speed reducer and driving wheel by epicyclic gearbox and ransaxle, has good load adaptive ability; And under the vehicle traction working condition, by motor by vibration damper and universal joint by transmission of power to transfer case, by transfer case, power is passed to epicyclic gearbox and ransaxle by Powershift transmission again, finally be passed to whole speed reducer and driving wheel, has mechanically operated high efficiency, can realize vehicle Adaptive change automatic deceleration, realize the automatic torque-changing function, have stronger load adaptive ability.Because the discharge capacity of duplex variable displacement pump and two hydraulic motors is regulated and can be changed continuously, can realize the continuous transition of speed between each gear of vehicle, thereby realize the vehicle stepless change.When duplex variable displacement pump in Hydraulic Power Transmission System drove the synchronous forward of two hydraulic motors, car speed increased; And while synchronously reversing, car speed reduces, output torque increases simultaneously, the discharge capacity of therefore regulating duplex variable displacement pump and two hydraulic motors, can realize that vehicle adapts to the automatic deceleration of load variations, realize the automatic torque-changing function, have stronger load adaptive ability.And the duplex variable displacement pump realizes that differential speed of vehicle turns to while driving the running of two hydraulic motors differential, have advantages of hydrostatic turning to.
The beneficial effects of the utility model are: 1, transmission efficiency is high, realizes the automatic torque-changing function, has stronger load adaptive ability; 2, by the continuous transition of speed between automobile gear level, thereby realize stepless change; 3, can use variable displacement pump and the oil hydraulic motor of small displacement, cost-saving; When 4, the two hydraulic motors differential turns round, realize that differential speed of vehicle turns to, have advantages of hydrostatic turning to.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein, 1-motor, 2-vibration damper, 3-universal joint, 4-transfer case, 5-Hydraulic Power Transmission System, 6-mechanical transmission, 7-epicyclic gearbox, 8-ransaxle, the whole speed reducer of 9-, 10-duplex variable displacement pump, 11-two hydraulic motors.
Embodiment
Below in conjunction with accompanying drawing, further illustrate embodiment of the present utility model.
With reference to Fig. 1, the described a kind of composite transmission mechanism of hydraulic machinery of this embodiment, comprise motor 1, vibration damper 2, universal joint 3, transfer case 4, Hydraulic Power Transmission System 5, mechanical transmission 6, epicyclic gearbox 7, ransaxle 8 and whole speed reducer 9, motor 1 is connected with vibration damper 2, vibration damper 2 is connected with transfer case 4 by universal joint 3, the first pto=power take-off of transfer case 4 is connected with Hydraulic Power Transmission System 5, Hydraulic Power Transmission System 5 comprises duplex variable displacement pump 10 and two hydraulic motors 11, duplex variable displacement pump 10 is connected with two hydraulic motors 11 by oil pipe, the second pto=power take-off of transfer case 4 is connected with mechanical transmission 6, described mechanical transmission 6 is connected with epicyclic gearbox 7 respectively with two hydraulic motors 11, epicyclic gearbox 7 is connected with whole speed reducer 9 by ransaxle 8.
Described Hydraulic Power Transmission System 5 is Closed circuit hydraulic transmission system.
Described mechanical transmission 6 is dynamic power shift gear box.
The working principle of this embodiment: during the vehicle start operating mode, by motor by vibration damper and universal joint by transmission of power to transfer case, by transfer case, power is driven to two hydraulic motors by the duplex variable displacement pump in Hydraulic Power Transmission System again, two hydraulic motors is passed to whole speed reducer and driving wheel by epicyclic gearbox and ransaxle, has good load adaptive ability; And under the vehicle traction working condition, by motor by vibration damper and universal joint by transmission of power to transfer case, by transfer case, power is passed to epicyclic gearbox and ransaxle by Powershift transmission again, finally be passed to whole speed reducer and driving wheel, has mechanically operated high efficiency, can realize vehicle Adaptive change automatic deceleration, realize the automatic torque-changing function, have stronger load adaptive ability.Because the discharge capacity of duplex variable displacement pump and two hydraulic motors is regulated and can be changed continuously, can realize the continuous transition of speed between each gear of vehicle, thereby realize the vehicle stepless change.When duplex variable displacement pump in Hydraulic Power Transmission System drove the synchronous forward of two hydraulic motors, car speed increased; And while synchronously reversing, car speed reduces, output torque increases simultaneously, the discharge capacity of therefore regulating duplex variable displacement pump and two hydraulic motors, can realize that vehicle adapts to the automatic deceleration of load variations, realize the automatic torque-changing function, have stronger load adaptive ability.And the duplex variable displacement pump realizes that differential speed of vehicle turns to while driving the running of two hydraulic motors differential, have advantages of hydrostatic turning to.
The beneficial effect of this embodiment is: 1, transmission efficiency is high, realizes the automatic torque-changing function, has stronger load adaptive ability; 2, by the continuous transition of speed between automobile gear level, thereby realize stepless change; 3, can use variable displacement pump and the oil hydraulic motor of small displacement, cost-saving; When 4, the two hydraulic motors differential turns round, realize that differential speed of vehicle turns to, have advantages of hydrostatic turning to.
Relational language is explained
Mechanical transmission: by the parts transferring power such as gear, tooth bar, band, chain and a kind of kind of drive of controlling.
Hydraulic machine transmission: utilize liquid kinetic energy to carry out the kind of drive of transferring power.
Hydrostatic transmissions: utilize hydrostatic pressure can carry out the kind of drive of transferring power.
Specific embodiment of the utility model does not form restriction of the present utility model, and every employing analog structure of the present utility model and variation, all in protection domain of the present utility model.

Claims (3)

1. composite transmission mechanism of hydraulic machinery, it is characterized in that: comprise motor (1), vibration damper (2), universal joint (3), transfer case (4), Hydraulic Power Transmission System (5), mechanical transmission (6), epicyclic gearbox (7), ransaxle (8) and whole speed reducer (9), motor (1) is connected with vibration damper (2), vibration damper (2) is connected with transfer case (4) by universal joint (3), the first pto=power take-off of transfer case (4) is connected with Hydraulic Power Transmission System (5), Hydraulic Power Transmission System (5) comprises duplex variable displacement pump (10) and two hydraulic motors (11), duplex variable displacement pump (10) is connected with two hydraulic motors (11) by oil pipe, the second pto=power take-off of transfer case (4) is connected with mechanical transmission (6), described mechanical transmission (6) is connected with epicyclic gearbox (7) respectively with two hydraulic motors (11), epicyclic gearbox (7) is connected with whole speed reducer (9) by ransaxle (8).
2. a kind of composite transmission mechanism of hydraulic machinery as claimed in claim 1 is characterized in that: described Hydraulic Power Transmission System (5) is Closed circuit hydraulic transmission system.
3. a kind of composite transmission mechanism of hydraulic machinery as claimed in claim 1, it is characterized in that: described mechanical transmission (6) is dynamic power shift gear box.
CN201320231720XU 2013-05-02 2013-05-02 Hydraulic mechanical composite transmission mechanism Active CN203309051U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320231720XU CN203309051U (en) 2013-05-02 2013-05-02 Hydraulic mechanical composite transmission mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320231720XU CN203309051U (en) 2013-05-02 2013-05-02 Hydraulic mechanical composite transmission mechanism

Publications (1)

Publication Number Publication Date
CN203309051U true CN203309051U (en) 2013-11-27

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Application Number Title Priority Date Filing Date
CN201320231720XU Active CN203309051U (en) 2013-05-02 2013-05-02 Hydraulic mechanical composite transmission mechanism

Country Status (1)

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CN (1) CN203309051U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108343719A (en) * 2018-04-26 2018-07-31 芜湖七创工业设计有限公司 A kind of automobile hydraulic torque-converters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108343719A (en) * 2018-04-26 2018-07-31 芜湖七创工业设计有限公司 A kind of automobile hydraulic torque-converters

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