Tractor Pump Distribution Gear Layout for Compact CVT Packaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing agricultural working machines face challenges with transmission systems that require large installation spaces due to the need to mount both the drive motor and transmission system on the vehicle frame, limiting flexibility and efficiency.
Innovation Solution
The design incorporates a pump distribution gear flanged to the drive motor, allowing it to be partially supported on the vehicle frame, with a modular transmission system that includes a continuously variable transmission and hydraulic connections, reducing installation space and enabling easy adaptation to different power classes and applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multi-stage transmission device is used to provide flexible power transmission, then adaptability and versatility are improved, but the installation space requirements increase
Solution Approach 1:
The patent combines the pump housing and distribution gear housing into a single integrated housing structure. The pump is positioned within the distribution gear housing, eliminating the need for separate housings and reducing overall installation space while maintaining the multi-stage transmission functionality and adaptability for different power classes
Solution Approach 2:
The distribution gear serves multiple functions: it acts as a speed reducer, a power distributor to multiple outputs, and a structural support element. The single housing accommodates both the hydraulic pump and the distribution gears, creating a multi-functional assembly that reduces space requirements while providing versatile power transmission options
2Stability of the object's composition
If the drive motor and transmission system are mounted on the vehicle frame, then the machine structure is stabilized, but the installation space requirements increase
Solution Approach 1:
The patent merges the pump and distribution gear into a single integrated assembly mounted on the vehicle frame. This combined assembly provides structural stability while occupying less space than separate mounted components would require
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present application relates to an agricultural working machine (1) in the form of a tractor (2), comprising a vehicle frame (28), a drive motor (8), and a transmission device (7), wherein the drive motor (8) comprises a motor housing (11) and an output shaft (12), and wherein the transmission device (7) comprises a pump distribution gearbox (10) and a continuously variable transmission (9).In order to provide an agricultural work machine which, despite the use of a multi-stage transmission device, is designed in a space-saving manner, it is proposed according to the invention that the pump distribution gearbox (10) is flanged to the drive motor (8) in such a way that the drive motor (8) is at least partially supported on the vehicle frame (28) by means of the pump distribution gearbox (10), wherein the pump distribution gearbox (10) has at least one output shaft (18) on the output side for operative connection with the continuously variable transmission (9) and at least one connection (29, 30) for a hydraulic drive device (26, 26).