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Mechanical hydraulic compound drive gearbox

A composite transmission and mechanical hydraulic technology, applied in the field of gearboxes, can solve the problems such as the sun shaft and the ring gear shaft cannot reliably maintain concentric rotation, the stable rotation of the sun shaft and the ring gear shaft is not guaranteed, and the transmission efficiency of the transmission device is unstable. , to achieve the effect of good climbing performance and starting performance, light weight and easy installation

Inactive Publication Date: 2012-07-25
赵国贵 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After further research, the applicant of this patent believes that the patent application published above has: ① There are no safeguards to ensure the stable rotation of the sun shaft and the ring gear shaft. The concentric rotation cannot be reliably maintained; ②The transmission efficiency of the transmission device is unstable at different operating speeds. The proportion is changing, which increases the fuel consumption, and the transmission efficiency of low-speed operation is low, which is uneconomical. Due to the different degree of road pollution, especially the traffic congestion of the road, special vehicles similar to road sweepers The cost is high when driving at low speed; ③The transmission structure is complex, and for the supporting vehicle, it has large volume, many parts and heavy weight, and it is difficult to install in the limited special vehicle space

Method used

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  • Mechanical hydraulic compound drive gearbox
  • Mechanical hydraulic compound drive gearbox
  • Mechanical hydraulic compound drive gearbox

Examples

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Effect test

no. 1 example

[0023] figure 1 This is a schematic diagram of the structure of the first embodiment of a mechanical-hydraulic composite transmission gearbox for the patent application of the present invention. The mechanical-hydraulic composite transmission gearbox of the present application is installed in a special vehicle transmission system similar to a road sweeper, and the special vehicle uses the accelerator pedal to control the engine speed when moving around; The operating speed of the special vehicle is driven by the mechanical hydraulic compound transmission gearbox with the foot pedal of the variable hydraulic pump 5 . like figure 1Shown: a mechanical-hydraulic composite transmission gearbox, on the box body 4 are installed an input shaft 19, a bridge shaft 45, a travel output shaft 20, an operation output shaft 15, a variable hydraulic pump 5, a hydraulic motor 18 and a planetary gear mechanism , on the input shaft 19, the transfer gear A28 is fitted through the spline, the br...

no. 2 example

[0027] figure 2 This is a schematic diagram of the structure of the second embodiment of a mechanical-hydraulic composite transmission gearbox for the patent application of the present invention. like figure 2 Shown: a mechanical-hydraulic compound transmission gearbox, on the basis of the first embodiment, the set transfer gear B49 and the transfer gear C50 are respectively fixed on the operation output shaft 15, and the splitter can be moved by the fork through the spline. The moving gear A28 moves on the input shaft 19, and makes the transfer gear A28 mesh with the transmission bridge gear A8 or the transmission transfer gear B49, and the transfer gear C50 meshes with the transmission planet carrier gear 29; The transition gear B44 and the transition gear D41 are assembled into a The joint gear A16 is slidably sleeved on the bridge shaft 45 with the bearing fixed position, the transition gear A36 meshes with the transmission transition gear B44, and the transition gear C...

no. 3 example

[0036] image 3 This is a schematic diagram of the structure of the third embodiment of a mechanical-hydraulic composite transmission gearbox for the patent application of the present invention. like image 3 Shown: a mechanical-hydraulic compound transmission gearbox, on the basis of the second embodiment, a transition shaft 35 is also installed on the gear box 4, and the transition gear B44 and the transition gear D41 are respectively fixed and sleeved on the transition shaft 35.

[0037] The transmission principle and operation method of this embodiment are similar to those described in the second embodiment, and will not be repeated here.

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Abstract

The invention discloses a mechanical hydraulic compound drive gearbox, which is applied to special vehicles of sweeping machines and the like. A box body and a support frame of a gearbox form a rigid framework, and a sun shaft and a ring gear shaft are installed in the structure and also connected in series, thereby ensuring that the sun shaft and the ring gear shaft are reliably in differential operation on the same straight line respectively in the form of a half shaft and causing no accidental damage. A compound drive is arranged to drive a variable speed gear shifting structure for driving output, thereby respectively meeting running requirements for low-speed sweeping operation and high-speed cleaning operation of sweeping machines. The gearbox has advanced design in drive path, has few parts, achieves multiple functions, and is high in drive efficiency, low in oil consumption, simple in drive structure, small in size, light in weight, easy to install in a limited vehicle space, stable in equipment and safe in operation. Starting torque of special vehicles is large, and climbing performance and slope starting performance are good.

Description

technical field [0001] The invention relates to a gearbox, in particular to a mechanical-hydraulic compound transmission gearbox. Background technique [0002] Some special vehicles like road sweepers require both the power to drive variable speed driving and the constant speed power to drive the vehicle-mounted operation device for stable operation. Generally, there are two power configuration schemes. One solution is a dual-engine configuration, where the two engines meet the requirements of driving variable-speed travel and driving the working device stably; the other solution is a single-engine configuration, where a single engine drives multiple hydraulic pumps in series, and controls multiple hydraulic pumps separately. The pump meets the power requirements of the special vehicle for variable speed driving and stable operation respectively. [0003] At present, products such as road sweepers are developing a mechanical-hydraulic composite transmission device. The Chin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H47/04F16H57/02F16H57/023F16H63/32
Inventor 赵宏坚赵国贵
Owner 赵国贵
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