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Mechanical-hydraulic composite transmission mechanism

A composite transmission and hydraulic technology, applied in mechanical equipment, transmission devices, differential transmission devices, etc., can solve the problems of general operation methods, low transmission efficiency of hydraulic transmission, unstable overall transmission efficiency, etc., to improve the overall transmission efficiency. Efficiency, easy operation and small installation space

Inactive Publication Date: 2008-04-09
赵宏坚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two solutions have disadvantages: the dual-engine configuration scheme has high fuel consumption and high emissions, and the installation of dual-engines takes up a lot of space for special vehicles, and this configuration generally has the phenomenon of large horses and small cars
The shortcomings of the above patents are that the road sweeper with dual engine configuration is bulky and clumsy, with high fuel consumption and high emissions
The shortcomings of the above patents are low transmission efficiency and high fuel consumption of hydraulic transmission
[0008] 3. In the third stage of operation, the ratio of hydraulic power flow to mechanical power flow is constantly changing, and the total transmission efficiency after convergence is unstable;
[0009] 4. The operation method of this scheme is complicated and difficult to master, which is not common to the general operation essentials of ordinary cars, and it is easy for the driver to make operational mistakes due to habitual actions during operation, resulting in safety accidents

Method used

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  • Mechanical-hydraulic composite transmission mechanism

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0062] Fig. 2 is the structural diagram of the first embodiment of the mechanical-hydraulic compound transmission mechanism of the present invention, and Fig. 3 is a transmission schematic diagram of the structure of the first embodiment, as shown in Fig. 2 and Fig. 3:

[0063] This embodiment is a technical solution applied to the automobile transmission system. The engine 2 is connected to the transmission transmission 3 and installed on the vehicle frame 4 together. Above, one end of the shaft of the bearing support bracket assembly 15 is connected to the transmission of the front transmission shaft 19A, and the other end is installed with a pulley 16, which is connected to the belt pulley 6 fixedly connected to the casing 22 of the differential 7 through a V-belt, and the engine 2 The rotation of the differential gear 7 is driven by sequentially connecting the transmission belt pulley 6; the differential gear 7 distributes the total power transmitted by the engine 2 to tran...

no. 2 example

[0078] The second embodiment is to make some changes on the basis of the first embodiment: (1) remove the disc brake 41 and the brake handle 42; (2) the engine 2 is coupled with the transmission symmetrical differential 7A in another scheme; (3 ) to increase the reduction box 20; (4) the speed changer 3 and the planetary gearbox 17 are connected to the reduction box 20 at the same time and drive the reduction box 20 respectively.

[0079] Fig. 4 is a structural diagram of the second embodiment of the present invention, and Fig. 5 is a transmission schematic diagram of the structure of the second embodiment of the present invention, as shown in Fig. 4 and Fig. 5:

[0080] The engine 2 drives the transmission 3, and the power take-off 13 is installed on the PTO interface of the transmission 3. The power take-off 13 has a clutch device connected to the transmission 3, and the operating handle of the power take-off clutch device is provided in the cab 1. 8. The bearing support ass...

no. 3 example

[0090] The mechanical-hydraulic composite transmission mechanism of the present invention can also be applied in the transmission system of various large-scale equipment and continuous equipment such as conveyors, and is described in detail below in conjunction with Fig. 1 and Fig. 3:

[0091]The engine 2 is installed on the base of the equipment to drive the symmetrical differential 7A, and the symmetrical differential 7A simultaneously connects the variable hydraulic pump 5 and the planetary gearbox 17 and distributes the total power transmitted by the engine 2 to drive the variable hydraulic pump 5 and the planetary gearbox 17 The variable hydraulic pump 5 is connected to the transmission hydraulic motor 18 through the hydraulic pipeline 28, and the hydraulic motor 18 is connected to the transmission planetary gearbox 17, and the planetary gearbox 17 merges the mechanical power flow transmitted by the symmetrical differential 7A and the hydraulic power flow transmitted by the...

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PUM

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Abstract

The invention relates to a mechanical-hydraulic composite transmission mechanism, comprising a differential, a variable displacement hydraulic pump, a hydraulic pipeline, a hydraulic motor, and a planetary gearbox which are serially connected with an engine; the differential is directly connected with a transmission planetary gearbox at the same time; the differential allocates and transmits the total power input by the engine to the variable displacement hydraulic pump and the planetary gearbox; the planetary gearbox collects mechanical power flow allocated and transmitted by the differential and the hydraulic power flow transmitted by the hydraulic motor and outputs the total power. The vehicle adopting the invention drives in stepless variable speed driving with mechanical-hydraulic comprise transmission type can shift to fast drive in mechanical transmission type. After being reshaped into special vehicle operation, the vehicle can run by driving the operation device to work in mechanical transmission type simultaneously. The special vehicle reshaped by the invention is in single-engine power configuration, and is provided with the advantages of low exhaust, small installation and occupying space, high transmission efficiency and low oil consumption, etc.

Description

technical field [0001] The invention relates to a composite transmission mechanism, in particular to a mechanical-hydraulic composite transmission mechanism. Background technique [0002] Many engineering operations need to use the chassis of the car to carry the operating equipment while driving and perform various construction operations, such as road sweepers and harvesters. The power transmission of some of the operating devices is realized by an engine through a mechanical transfer case to simultaneously drive the vehicle and the operating device to work, such as the transmission mechanism of the harvester. However, since road sweepers and other operating devices need to constantly change the driving speed when driving, and the engine speed is changed during variable speed driving, the quality of work will be reduced. Therefore, road sweepers and other operating devices cannot use this power transmission method. [0003] At present, there are two solutions for the powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H47/08F16H48/06
Inventor 赵宏志赵宏坚
Owner 赵宏坚