Hydrostatic travel drive for all-wheel drive working machines

A driving device and all-wheel drive technology, which is applied to the transmission device, fluid transmission device, transmission device control, etc., can solve the problems of increased installation costs, and achieve the effects of simple construction, low power loss, and high driving comfort

Active Publication Date: 2018-03-16
LINDE HYDRAULICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the design of the shift transmission with a synchronization device leads to increased installation effort

Method used

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  • Hydrostatic travel drive for all-wheel drive working machines
  • Hydrostatic travel drive for all-wheel drive working machines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] exist figure 1 A connection diagram of a hydrostatic traction drive 1 according to the invention of an all-wheel drive working machine, for example an agricultural harvester, is shown in .

[0031] The all-wheel drive working machine comprises a drive axle 2, eg a front axle, with driven wheels 3a, 3b, and a second drive axle 4, eg a rear axle, with driven wheels 5a, 5b. In this case, the drive axle 4 can be designed as a steerable axle with steerable wheels 5a, 5b. The wheels 3a, 3b or 5a, 5b can be configured as driven front and rear tires. Alternatively, the driven wheels 3 a , 3 b or 5 a , 5 b can be designed as crawler tracks, the running devices of which correspond to the driven wheels 3 a , 3 b or 5 a , 5 b.

[0032] The traction drive 1 includes, for the first drive axle 2 , a hydrostatic transmission 6 with a hydraulic pump 7 adjustable in delivery volume and a first hydraulic motor 8 coupled to the hydraulic pump 7 . The hydraulic pump 7 is connected for d...

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PUM

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Abstract

The invention relates to a hydrostatic running driving device (1) for an all-wheel drive working machine. The hydrostatic running driving device (1) comprises a first hydraulic motor (8) and a second hydraulic motor (17), a driving shaft of the first hydraulic motor (8) is connected with a first gear shifting transmission (11), and a driving shaft of the second hydraulic motor (17) is connected with a second gear shifting transmission (19). The task is to provide this kind of running driving device capable of changing gears with continuous traction force in the running process. The task is solved in the way that in order to change the transmission ratio levels (G1 and G2) of the gear shifting transmissions (11 and 19) in the running process, gear shifting processes which are staggered in terms of time and conducted successively are conducted on the gear shifting transmissions (11 and 19), during gear shifting of the first gear shifting transmission (11), the second gear shifting transmission (19) transmits traction force, and in addition, in the subsequent gear shifting processes of the second gear shifting transmission (19), the first gear shifting transmission (11) transmits traction force.

Description

technical field [0001] The invention relates to a hydrostatic traction drive for an all-wheel drive working machine with at least one first drive axle and a second drive axle, wherein the traction drive is used for driving the first drive axle A first hydraulic motor comprising a hydrostatic transmission, wherein the drive shaft of the first hydraulic motor is connected to a first mechanically shiftable transmission shiftable between at least two gear ratio stages and a neutral position, and wherein , the travel drive device comprises a second hydraulic motor of a hydrostatic transmission for driving the second drive axle, wherein the drive shaft of the second hydraulic motor is capable of at least two gear ratio stages and a neutral position A second mechanically shifted transmission connection for shifting between. Background technique [0002] Mobile self-propelled working machines, especially agricultural machines, harvesters, forestry machines, ground handling machines...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H39/00
CPCA01D41/1274F16H61/421F16H61/44
Inventor A·朗根D·德尔
Owner LINDE HYDRAULICS
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